Diagram sections — 23 (48 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT COMPUTER DATA LINES CRUISE CONTROL ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER WINDOWS RADIO STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Heater Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Heater Wiring Diagram for Toyota Tundra Limited 2003: 24 (behind right side of dash, in hvac housing) blower resistor (in dash harness, above right kick panel) i16 (on left side of engine compartment) engine room r/b Blower motor (under right side of dash, on hvac housing) Blower switch Defroster switch Driver's side j/b (behind lower left side of dash) Ea (on left front fender) Engine room r/b (on left side of engine compartment) Gauge fuse 10a Heater fuse 50a Heater relay Hot at all times Hot in on or start I25 Integration control & panel Junction connector (behind right kick panel) Junction connector 1 (on left side of engine compt) Junction connector 18 (on left side of engine compt, under engine room r/b) Junction connector 3 (behind left kick panel) Junction connector 8 (behind upper left side of dash, near instrument cluster) Off Red Side of dash) Manual A/C Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Manual A/C Wiring Diagram for Toyota Tundra Limited 2003: 46 (above right kick panel) i16 (behind right side of dash, in hvac housing) blower resistor (on left side of engine compt, under engine room r/b) junction connector 18 3.4l 4.7l A/c dual pressure switch (3.4l) (in right front of engine compartment, behind headlight) A/c fuse 10a A/c lock sensor A/c magnetic clutch A/c magnetic clutch & lock sensor (on a/c compressor, on left side of engine) A/c thermistor (3.4l) (behind right side of dash, in hvac housing) A/cs Ac+2 Acid/act Acmg/ac1 Aind/act Air inlet control servo motor (under right side of dash, on hvac housing) Blower motor (under right side of dash, on hvac housing) Blower switch Defroster switch Driver's side j/b (behind lower left side of dash) E1 (in engine harness, inside engine room r/b) Ea (on left front fender) Engine control module (behind right side of dash, near "a" pillar) Engine room r/b (on left side of engine compartment) Engine room r/b (on left side of engine compt) Frs Gauge fuse 10a Gnd Hot at all times Hot in on or start Htr fuse 50a Htr relay I24 I25 Ig+ Integraton control & panel Junction connector 1 (on left side of eng compt, under engine room r/b) Junction connector 13 (behind right kick panel) Junction connector 3 (behind left kick panel) Junction connector 8 (behind upper left side of dash, near instrument cluster) Lck1 Mgc Off Rec Red
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Anti-lock Brakes Wiring Diagram for Toyota Tundra Limited 2003: 46 (behind right kick panel) ii +bm +bs Abs 2 fuse 40a Abs 3 fuse 40a Abs actuator w/ ecu (in right rear corner of engine compt) Abs inverter Abs warning ind C11 C13 Combination meter D/g Data link connector 3 (below left side of dash, near center console) Driver side j/b (behind lower left side of dash) Ecu ig fuse 5a Engine controls, transmissions systems Engine room r/b (on left side of engine compt) Exi Fl+ Fl- Fr+ Fr- Gauge fuse 10a Gnd 1 Gnd 2 Hot at all times Hot in on or start Ig1 Junction connector 10 (behind upper left side of dash, near instrument cluster) Junction connector 13 (behind right kick panel) Junction connector 5 & 8 (behind upper left side of dash, near instrument cluster) Left front abs speed sensor (mounted on left front wheel hub) Left rear abs speed sensor Pnk Rear abs speed sensor (on left side of rear axle) Red Right front abs speed sensor (mounted on right front wheel hub) Right rear abs speed sensor Rl+ Rl- Rr+ Rr- Sil Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Stp
ANTI-THEFT Power Door Locks Wiring Diagram, with Keyless Entry (1 of 2) for Toyota Tundra Limited 2003 List of elements for Power Door Locks Wiring Diagram, with Keyless Entry (1 of 2) for Toyota Tundra Limited 2003: 40 (ends in harness) (in body harness, in left front door) b3 3.4l 4.7l B7 (in body harness, in right front door) Diode (w/o drl) (behind upper left side of dash, near instrument cluster) Driver side j/b (behind lower left side of dash) Ecu ig fuse 5a G13 Headlights system Horn fuse 10a Hot at all times Hot in on or start Integration relay J21 J22 J23 Junction connector 10 (behind upper left side of dash, near instrument cluster) Junction connector 13 (behind right kick panel) Junction connector 21 & 22 (behind upper j22 left side of dash, near instrument cluster) Junction connector 21 & 22 (behind upper left side of dash, near instrument cluster) Junction connector 23 & 24 (behind left end of dash) j24 Junction connector 4 (behind left kick panel) Junction connector 7 (behind upper left side of dash, near instrument cluster) L12 L13 Left door key lock & unlock lock switch Left door lock control lock switch (power window master switch) Left door lock motor & door unlock detection switch Lock N12 Power fuse 30a Red Right door key lock & unlock unlk switch Right door lock control unlk switch Right door lock motor & door unlock detection switch Tail fuse 15a Unlk W/ drl W/o drl Power Door Locks Wiring Diagram, with Keyless Entry (2 of 2) for Toyota Tundra Limited 2003 List of elements for Power Door Locks Wiring Diagram, with Keyless Entry (2 of 2) for Toyota Tundra Limited 2003: 55 (behind left (behind left end of dash) (cut off) +b1 +b2 3.4l 4.7l Act+ Act- Bzr C11 C12 Combination meter Cty Dmlp Dswd Ecu-b fuse 5a Engine room r/b (on left side of engine compartment) Head Horn Hot at all times Ie (behind left kick panel) Ind Interior lights system J21 J23 J24 Junction connector 21 (behind upper left side of dash, near instrument cluster) Junction connector 23 & 24 Junction connector 7 (behind upper left side of dash, near instrument cluster) Kick panel) Ksw Lswd Lswp Lug Mi+ Mi- Nca Pnk Security indicator & glass breakage sensor microphone Short connector (w/o tvip) Srly Starting/charging system T11 T12 T13 Tail Tvip buzzer (on left rear of engine compt, near brake master cylinder) Tvip ecu (behind center of dash) Ul1 Ul2 Ul3 Unlock warning switch W/ drl W/o drl
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Computer Data Lines Wiring Diagram for Toyota Tundra Limited 2003: 22 (behind upper left side of dash, near instrument cluster) j/c 5 (on left side of engine) (3.4l) ed 3.4l 4.7l A/b Abs actuator with ecu (in right rear corner of engine compt) Bat C13 Center air bag sensor assembly (behind lower center of dash, on transmission tunnel) Combination meter D/g Data link connector 3 (below left side of dash, near center console) Driver's side j/b (behind lower left side of dash) Ec (4.7l) (on left side of firewall) Engine control module (behind right side of dash, near "a" pillar) Hot at all times If (behind left kick panel) J/c 3 J/c 8 (behind upper left side of dash, near instrument cluster) Obd fuse 7.5a Sil Wfse
CRUISE CONTROL
3.4L 3.4L, Cruise Control Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 3.4L, Cruise Control Wiring Diagram for Toyota Tundra Limited 2003: 70 (a/t) (behind upper left side of dash, near instrument cluster) diode (a/t) (behind upper left side of dash, near instrument cluster) junction connector 10 (behind upper left side of dash, near instrument cluster) junction connector 8 (behind upper left side of dash, near instrument cluster) junction connector 9 (combination meter) (m/t) (on bracket, above brake pedal) stoplight switch (on transmission) +bm A/t Acc fuse 15a Accel sensor (on left side of engine) Batt C11 C13 Cancel Ccs Cl+ Cl- Combination meter Control circuit Cruise Cruise control clutch switch Cruise control ind Cruise control switch (combination switch) Driver's side j/b (behind lower left side of dash) E04 Ea (on left side of engine) Ed (on left side of engine) Efi 1 fuse 15a Efi relay Engine control module (behind right side of dash, near "a" pillar) Engine room r/b (on left side of engine compt) Etcs fuse 15a F11 G11 Gauge fuse 10a Ge01 Hot at all times Hot in acc or on Hot in on or start Ign fuse 5a Igsw Ih (behind right kick panel) Junction connector 1 (on left side of engine compt, under engine room r/b) Junction connector 12 (behind upper right side of dash, near instrument cluster) Junction connector 18 (on left side of engine compt, under engine room r/b) Junction connector 5 (behind upper left side of dash, near instrument cluster) Junction connector 9 (behind upper left side of dash, near instrument cluster) M/t Me01 Mrel Nca Park/neutral position switch (on transmission) Red Res/ acc Set/ coast Sp1 Speedometer St1- Stop fuse 15a Stp Throttle control motor (on throttle body) Throttle position sensor (on throttle body assembly) Vehicle speed sensor Vpa Vpa2 Vta Vta2
4.7L 4.7L, Cruise Control Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 4.7L, Cruise Control Wiring Diagram for Toyota Tundra Limited 2003: 71 (behind upper left side of dash, near instrument cluster) diode (a/t) (behind upper left side of dash, near instrument cluster) junction connector 10 (behind upper left side of dash, near instrument cluster) junction connector 8 (behind upper left side of dash, near instrument cluster) junction connector 9 (on bracket, above brake pedal) stoplight switch (on left front fender) (on transmission) +b2 +bm Acc fuse 15a Accelerator pedal position sensor (behind left side of dash, above accelerator pedal) Batt C11 C12 C13 Cancel Ccs Combination meter Control circuit Cruise Cruise control ind Cruise control switch (combination switch) D position switch (park/neutral position switch) (on transmission) Driver's side j/b (behind lower left side of dash) E01 E02 Eb (on right rear of engine) Ec (on left side of firewall) Ecc Efi 1 fuse 15a Efi relay Engine control module (behind right side of dash, near "a" pillar) Engine room r/b (on left side of engine compt) Epa Epa2 Etcs fuse 15a F11 G11 Gauge fuse 10a Ge01 Hot at all times Hot in acc or on Hot in on or start I3 (in dash harness, behind upper left center of dash) Ign fuse 5a Igsw Ih (behind right kick panel) J/c 18 (under engine room r/b) Junction connector (under engine room r/b) Junction connector 5 (behind upper left side of dash, near instrument cluster) Junction connector 8 (behind upper left side of dash, near instrument cluster) Junction connector 9 (behind upper left side of dash, near instrument cluster) Mrel Red Resume/ accel Set/ coast Spd Speedometer St1- Stop fuse 15a Stp Throttle position sensor (on throttle body assembly) Vcp2 Vcpa Vehicle speed sensor (combination meter) Vpa Vpa2 Vta1 Vta2 W/ door lock control W/o door lock control
ENGINE PERFORMANCE
3.4L 3.4L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra Limited 2003 List of elements for 3.4L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra Limited 2003: 59 (upper left side of dash) diode +bm 4wd A/c system A/t indicator light switch A/t oil temp Ac1 Acc fuse 15a Act Batt C11 C12 C13 C14 Ccs Combination meter Control unit Cruise control system Data link connector 3 (left side of dash) Driver side j/b Driver side j/b (behind left side of dash) Engine control module (behind right side of dash) F/ps F11 G11 Gauge fuse 10a Hot in run or acc Hot in run or start Hot in start Ie (behind left kick panel) Ig+ Ign fuse 5a Igsw J/c 12 (right side of dash) J/c 5 (behind upper left side of dash) J/c 5 (w/ cruise control) (behind upper b left side of dash) J/c 8 (upper left side of dash) J/c 9 (behind upper left side of dash) Malf ind lamp Mrel Nsw O/d main switch (center of dash) O/d off ind Odlp Odms Oilw Pnk Red Sil Sp1 St- Sta Sta fuse 5a Starting/charging system Stp Tfn Transmission system (4wd circuit) Vehicle speed sensor (on trans) Wfse 3.4L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra Limited 2003 List of elements for 3.4L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra Limited 2003: 11 Air fuel ratio sensor (bank 1, sensor 1) (on exhaust system) Electronically controlled transmission solenoid Engine room r/b (left side of engine compt) Etcs fuse 15a Heated oxygen sensor (bank 1, sensor 2) (on exhaust system) Hot at all times I3 (dash harn, behind right side of dash) Mass airflow meter (on air cleaner housing) Pnk Red Vehicle speed sensor (a/t) (on trans) 3.4L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra Limited 2003 List of elements for 3.4L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra Limited 2003: 44 (above accelerator pedal) accelerator pedal position sensor (behind right side of dash) engine control module (dash harn, behind right side of dash) (left side of engine) ed (on throttle body assembly) throttle position sensor (on throttle body) throttle control motor (top left of engine) engine coolant temperature sensor A/t oil temperature sensor (on transmission) Af1+ Af1- E red E01 E02 E03 E04 E2g Efi 1 fuse 15a Efi 2 fuse 10a Engine room r/b (left side of engine compt) Ge01 Hot at all times Ht2b Htaf1 J/c 1 (under engine room r/b) J/c 14, j/c 15 (under driver's seat) J14 J15 Knk1 Knk2 Knock sensor 1 (right side of engine) Knock sensor 2 (left side of engine) Me02 Nca Oil Ox2b Pnk Ptnk Red Tha Thw Vapor pressure sensor (left rear corner of eng compt) Vsv (canister closed valve) (under left side of vehicle) Vsv (evap) (rear of engine) Vta 3.4L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra Limited 2003 List of elements for 3.4L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra Limited 2003: 47 (behind left side of dash) driver side j/b (left front fender) ea (right side of engine compt) igniter (right side of engine compt) noise filter (top right of engine) Acc C/opn relay Camshaft position sensor (right front of engine) Ccv Cl+ Cl- Crankshaft position sensor (left front of engine) Ed (left side of engine) Efi relay Engine control module (behind right side of dash) Engine room r/b (left side of engine compt) Evp1 Fuel injectors Fuel pump (in fuel tank) Hot at all times I3 (dash harn, right side of dash) jc Igf Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition switch Igt1 Igt2 Igt3 J/c 18 (left side of engine compt) J/c 3 (left kick panel) J/c 8 (behind upper left side of dash) Lock Ne+ Ne- Power steering oil pressure switch (right front of engine) Psw Red Run Slt+ Slt- Sp2+ Sp2- Start Vpa Vpa2 Vta2
4.7L 4.7L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra Limited 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (1 of 4) for Toyota Tundra Limited 2003: 58 (behind left side of dash) driver side j/b (dash harn, behind right side of dash) A/c system Acc Accr Camshaft position sensor (left front of engine) Ccv Crankshaft position sensor (left front of engine) E01 E02 E03 E2g Eb (right rear of engine) Ec (left side of firewall) Engine control module (behind right side of dash) Engine coolant temperature sensor (right front of engine) Fpr Fuel injectors G2+ G2- Ge01 Hot at all times Igf1 Igf2 Igniters & ignition coils Ignition switch Igt1 Igt2 Igt3 Igt4 Igt5 Igt6 Igt7 Igt8 J/c 19 (behind upper right side of dash) Lck1 Lock Mass airflow meter (on air cleaner housing) Me01 Nca Ne+ Ne- Noise filter Nsw Pnk Power distribution system Prg Red Run Sta Start Starting/charging system Stsw Tha Throttle position sensor (on throttle body assembly) Thw Vta1 Vta2 4.7L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra Limited 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (2 of 4) for Toyota Tundra Limited 2003: 45 (center of left front fender) ea (dash harn, behind right side of dash) (on bracket, above brake pedal) stoplight switch A/t indicator light switch (integral to park/neutral position switch) (on trans) A/t oil temp Acc fuse 15a C j/c 10 (upper left side of dash) C/opn relay C11 C12 C13 C14 Combination meter Control unit Diode (a/t) (upper left side of dash) Driver side j/b Driver side j/b (behind left side of dash) Ec (left side of firewall) Efi relay Engine room r/b (left side of engine compt) Fuel pump (in fuel tank) Fuel pump relay Fuel pump resistor (left side of engine compt) G11 Gauge fuse 10a Hot at all times Hot in run or acc Hot in run or start Idle-up diode (behind right side of dash) Ie (behind left kick panel) Ig+ Integration relay J/c 10 (behind upper left side of dash) J/c 11 (upper right side of dash) J/c 12 (right side of dash) J/c 3 (behind left kick panel) J/c 8 (upper left side of dash) J/c 9 (behind upper left side of dash) Malf ind lamp O/d off ind Red Stop fuse 15a Tail fuse 15a Vehicle speed sensor (on trans) Vsv (evap) (left side of engine) 4.7L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra Limited 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (3 of 4) for Toyota Tundra Limited 2003: 32 (under left side of vehicle) vapor pressure sensor +bm A/c system A/cs Acld Acmg Ccs Cruise control system Driver side j/b (behind left side of dash) Efi 1 fuse 15a Engine control module (behind right side of dash) Engine room r/b (left side of engine compt) Etcs fuse 15a Hot at all times Hot in start Ie (behind left kick panel) J/c 14, j/c 15 (under driver's seat) J/c 9 (upper left side of dash) J14 J14 h J15 O/d main switch (center of dash) Odlp Oilw Red Spd St1- Sta fuse 5a Stp The Trans- mission system Vapor pressure sensor (left rear corner of eng compt) 4.7L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra Limited 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (4 of 4) for Toyota Tundra Limited 2003: 69 (above accelerator pedal) accel pedal position sensor (dash harn right side of dash) (dash harn right side of dash) i5 (left side of trans) o/d direct clutch speed sensor (left side of trans) vehicle speed sensor (on transmission) (upper left side of dash) j/c 5 +b2 4wd A/t oil temperature sensor Batt D red Data link connector 3 (under left side of dash, near center console) Driver side j/b (behind left side of dash) Efi 2 fuse 15a Electronically controlled transmission solenoid (in transmission) Els Engine control module (behind right side of dash) Engine room r/b (left side of engine compt) Epa Epa2 F/ps F11 Heated oxygen sensor (bank 1 sensor 1) (on exhaust system) Heated oxygen sensor (bank 1 sensor 2) (on exhaust system) Heated oxygen sensor (bank 2 sensor 1) (on exhaust system) Heated oxygen sensor (bank 2 sensor 2) (on exhaust system) Hot in run or start Ht1a Ht1b Ht2a Ht2b Ign fuse 5a Igsw J/c 1 (left side of engine compt) J/c 5 (upper left side of dash) J/c 8 (upper left side of dash) Knk1 Knk2 Knock sensor 1 (left side of engine) Knock sensor 2 (right side of engine) Mrel Nca Nco+ Nco- Odms Ox1a Ox1b Ox2a Ox2b Pnk Ptnk Red Sil Slt Slt+ Slt- Sp2+ Sp2- Star Starting/charging system Tach Thoc Transmission system Vcp2 Vcpa Vpa Vpa2 Wfse
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Back-up Lamps Wiring Diagram for Toyota Tundra Limited 2003: 30 (a/t) (behind upper left side of dash, near instrument cluster) diode (below left rear of left front seat) (m/t) A j24 A/t A/t m/t Acc fuse 15a B10 Back- up light Back-up light relay (behind left side of dash, below driver side j/b) Back-up light switch (m/t) (on transmission) Back-up light switch (park/ neutral position switch) (a/t) (on transmission) Driver's side j/b (behind lower left side of dash) G11 Gauge fuse 10a Hot in acc or on Hot in on or start Ie (behind left kick panel) J/c 12 (behind upper right side of dash, near passenger's air bag) J/c 8 (behind upper left side of dash, near instrument cluster) J/c 9 (behind upper left side of dash, near instrument cluster) J23 a Junction connector 23 & 24 (behind left end of dash) Left rear combination light M/t Right rear combination light Trailer socket W/ door lock control W/o door lock control Exterior Lamps Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Exterior Lamps Wiring Diagram for Toyota Tundra Limited 2003: 66 (behind left kick panel) (behind left kick panel) ie (in body harness, behind left side of rear bumper) (w/o drl) A j15 A j22 B10 Bl (below left rear of left front seat) C11 C12 C13 Comb- ination meter Combination switch D10 D11 Driver's side j/b (behind lower left side of dash) E11 Ea (on left front fender) Ehw Engine room r/b (on left side of engine compt) From driver side j/b (diagram 1 of 1) Gnd H12 H13 Haz fuse 20a Head High mounted stoplight Hot at all times Hot in on or start Ie (behind left kick panel) Integration control & panel Integration relay J/c 1 (left side of engine compt) J/c 10 (behind upper left side of dash) J/c 14 & 15 (under driver's seat) J/c 18 (on left side of engine compt) J/c 21 & 22 (behind upper left side of dash) J/c 23 & 24 (behind left end of dash) J/c 3 J14 a J14 c J23 J24 L13 Left front combination light Left license plate light Left rear combination light Light ctrl switch N4 (w/ drl) Off Park Right front combination light Right license plate light Right rear combination light Stop Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Tail Tail fuse 15a To j/c 1 (diagram 1 of 1) Towing converter Turn Turn fuse 5a Turn signal flasher (behind left side of dash, below driver side j/b) Turn signal ind Turn signal switch Trailer Tow Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Trailer Tow Wiring Diagram for Toyota Tundra Limited 2003: 48 (w/ towing) sub batt relay B10 Bl (below left rear of left front seat) Driver's side j/b (behind lower left side of dash) Ea (on left front fender) Engine room r/b (on left side of engine compt) Except Exterior lights circuit Gnd Head Hot at all times Ie (behind left kick panel) Ih (behind right kick panel) Integration relay J/c 10 (behind upper left side of dash, near instrument cluster) J/c 10 (behind upper left side of dash, near instrument cluster) e J/c 12 (behind upper right side of dash, near passenger's air bag) e J/c 18 (on left side of engine compt, under engine room r/b) J/c 2 (on left side of engine compt, under engine room r/b) J/c 21 & 22 (behind upper left side of dash) J/c 23 & 24 (behind left end of dash) J/c 3 (behind left kick panel) J/c 8 (behind upper left side of dash, near instrument cluster) J21 J22 J23 J24 Light control switch (combination switch) Ltin Ltot Off Option connector (w/ towing) Red Rtin Rtot Stin Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Sub batt fuse 30a Tail Tail fuse 15a Tow brk fuse 30a Tow tail fuse 30a Tow tail relay Towing Towing converter Towing fuse 30a Trailer socket
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 2) for Toyota Tundra Limited 2003 List of elements for Ground Distribution Wiring Diagram (1 of 2) for Toyota Tundra Limited 2003: 73 (left side of engine compt, 4wd 4wd control ecu A/c pressure switch Abs actuator with ecu Add actuator B4 (in body harness, at left "a" pillar) B7 (body harness, in right front door) Bk (base of right rear door) Blower resistor Blower switch Brake fluid level switch Cigarette lighter Combination switch Data link connector 3 Daytime running lights resistor Driver side j/b (behind lower left side of dash) Drl no.4 relay Ea (left front fender) Efi relay Engine room r/b (left side of engine compartment) Fog relay Fuel pump High mount stop light and cargo light Htr relay I2 (dash harness behind upper left side of dash) I25 I3 (dash harness behind right side of dash) I4 (dash harness behind upper right side of dash) Ig (below center of dash) Integration control and panel Integration relay J/c 13 (behind right kick panel) J/c 18 J/c 2 J/c 3 (behind left kick panel) Left front fog light Left front park/turn light Left lower rear door courtesy switch Light control switch M/t Parking brake switch Personal light Power outlet Power outlet relay Power relay Power window control switch (back window) Radio and player Right door key lock/ unlock switch Right door lock control switch Right door lock motor and door unlock detection switch Right front fog light Right front park/turn light Right mirror heater Right rear upper door courtesy switch Right vanity light St relay Sub batt relay Towing package Transfer 4wd position detection switch Transfer neutral position detection switch Transfer position detection switch Transfer shift actuator Transmission control relay Turn signal switch Under engine room r/b) V6 a/t 4wd V8 4wd W/ drl W/o drl Washer level sensor Wiper motor Wiper/ washer switch Ground Distribution Wiring Diagram (2 of 2) for Toyota Tundra Limited 2003 List of elements for Ground Distribution Wiring Diagram (2 of 2) for Toyota Tundra Limited 2003: 76 (body harness, behind left side of rear bumper) B/l (below left rear of left front seat) B2 (body harness in left front door) B3 (body harness in left front door) Backup light relay Bench seat Bj (at base of left rear door) C11 C12 Center airbag sensor assembly Clutch start cancel switch Clutch start switch Combination meter Combination switch Cruise control switch Data link connector Data link connector 3 Drivers power seat control switch Drivers seat lumbar support control switch Eb (right rear of engine) Ec (left side of firewall) Ed (left side of engine) Engine control module Except towing package Fuel sender Glove box light Heated oxygen sensor bank 1 sensor 2 I1 (dash harness, behind upper left end of dash) I3 (dash harness behind right side of dash) Ie (behind left kick panel) Igniter and ignition coil no.1 Igniter and ignition coil no.2 Igniter and ignition coil no.3 Igniter and ignition coil no.4 Igniter and ignition coil no.5 Igniter and ignition coil no.6 Igniter and ignition coil no.7 Igniter and ignition coil no.8 Ignitior Ih (behind right kick panel) Integration relay J/c 17 (under drivers seat) J/c 23 J/c 24 J/c 8 (upper left side of dash) Left buckle switch Left front door key lock and unlock switch Left front door lock motor and door lock detection switch Left license plate lamp Left mirror heater Left rear combination lamp Left rear lower door courtesy switch Left rear upper door courtesy switch Mirror heater switch Noise filter O/d main switch Option connector Park neutral position switch Power window master switch Remote control mirror switch Rheostat Right buckle switch Right license plate lamp Right rear combination lamp Right seat belt warning occupant detection sensor and buckle switch Security indicator and glass breakage sensor microphone Short connector (tvip) Short pin T11 Towing converter Towing package Trailer socket Turn signal flasher Tvip buzzer Tvip ecu W/ power seat
HEADLIGHTS Headlights Wiring Diagram, with DRL for Toyota Tundra Limited 2003 List of elements for Headlights Wiring Diagram, with DRL for Toyota Tundra Limited 2003: 72 (3.4l) (4.7l) (on left front fender) ea (on left side of engine compt, under engine room r/b) j/c 18 A/t Brake fluid level warning switch (on brake fluid reservoir) C11 C12 C15 Combination meter Combinaton switch Daytime running light resistor (on left side of engine compt, near battery) Dimmer relay Dimmer switch Driver's side j/b (behind lower left side of dash) Drl 4 relay Ea (on left front fender) Ecu ig fuse 5a Engine room r/b (on left side of engine compt) Flash Fog fuse 20a Fog relay Foglight switch H-lp relay Head High High beam ind Hot at all times Hot in on or start Ie (behind left kick panel) If (behind left kick panel) Ih (behind right kick panel) Ii (behind left kick panel) Integration relay J/c 13 (behind right kick panel) J/c 18 (on left side of engine compt, under engine room r/b) J/c 2 (on left side of engine compt, under engine room r/b) J/c 21 & 22 (behind upper left side of dash, near instrument cluster) J/c 23 & 24 (behind left end of dash) J/c 3 (behind left kick panel) J/c 4 (behind left kick panel) J/c 7 (behind upper left side of dash, near instrument cluster) J/c 8 (behind upper left side of dash, near instrument cluster) J21 J22 J23 J24 Left front door courtesy switch Left front foglight Left head- light Left hi head fuse 10a Left lo head fuse 10a Light control switch Low M/t N13 N15 N24 Off Parking brake switch (inside upper right side of steering column) Parking brake switch (on base of park brake pedal bracket, near kick panel) Pnk Red Right front foglight Right headlight Right hi head fuse 10a Right lo head fuse 10a Starting/ charging system Tail Tail fuse 15a W/ door lock control W/o door lock control Headlights Wiring Diagram, without DRL for Toyota Tundra Limited 2003 List of elements for Headlights Wiring Diagram, without DRL for Toyota Tundra Limited 2003: 45 (on left front fender) ea C11 C12 Combination meter Combination switch Connector 11 (behind upper right side of dash, near passenger's air bag) Dimmer switch Driver's side j/b (behind lower left side of dash) Engine room r/b (on left side of engine compt) Flash Fog relay Foglight switch Fr fog fuse 20a H-lp relay Head High High beam indicator Hot at all times Ie (behind left kick panel) If (behind left kick panel) Ii (behind right kick panel) Integration relay J23 J24 Junction Junction connector 13 (behind right kick panel) Junction connector 18 (on left side of engine compt, under engine room r/b) Junction connector 2 (on left side of engine compt, under engine room r/b) Junction connector 23 & 24 (behind left end of dash) Junction connector 3 (behind left kick panel) Junction connector 7 (behind upper left side of dash, near instrument cluster) Left front foglight Left head fuse 10a Left headlight Light control switch Low Off Pnk Red Right front foglight Right head fuse 10a Right headlight Tail W/ door lock control W/o door lock control
HORN Horn Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Horn Wiring Diagram for Toyota Tundra Limited 2003: 14 3.4l w/ door lock control w/o drl, 4.7l w/o drl 3.4l w/o door lock control w/ drl, 3.4l w/ door lock control w/ drl 4.7l w/ drl 3.4l w/ door lock control, 4.7l 3.4l w/o door lock control, w/o drl Combination switch Driver side j/b (behind lower left side of dash) Horn fuse 10a Horn switch Hot at all times Integration relay J/c 10 (behind upper left side of dash, near instrument cluster) L12 Left horn N12 Right horn
INSTRUMENT CLUSTER Clock Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Clock Wiring Diagram for Toyota Tundra Limited 2003: 19 Acc Acc fuse 15a Dome fuse 10a Driver side j/b (behind lower left side of dash) Engine room r/b (on left side of engine compartment) Gnd Hot at all times Hot in acc and on I24 I25 Ill+ Integration control & panel Integration relay J/c 10 (behind upper left side of dash, near instrument cluster) J/c 13 (behind right kick panel) J/c 23 & 24 (behind left end of dash) J23 J24 Tail fuse 15a
INTERIOR LIGHTS Cargo Light Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Cargo Light Wiring Diagram for Toyota Tundra Limited 2003: 27 C11 C12 C13 Cargo light (high mounted stop light) Cargo lp fuse 5a Combination meter Driver side j/b (behind lower left side of dash) Driver's side j/b (behind lower left side of dash) Gauge fuse 10a Gnd H10 Hot at all times Hot in on or start I24 I25 Ih (behind right kick panel) Integration control & panel Integration relay J/c 13 (behind right kick panel) J/c 3 (behind left kick panel) J/c 8 (behind upper left side of dash, near instrument cluster) J/c 9 (behind upper left side of dash, near instrument cluster) L10 (w/o drl) L11 (w/o drl) N11 (w/ drl) N5 (w/ drl) Vehicle speed sensor (combination meter) (on transmission) Courtesy Lamps Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Courtesy Lamps Wiring Diagram for Toyota Tundra Limited 2003: 48 Access cab B4 (in body harness, at left "a"pillar) B8 (in body harness, in left rear door) B9 (in body harness, in right rear door) Bj (at base of left rear door) Bk (at base of right rear door) C11 C12 Combination meter Diode (door courtesy) (behind upper left side of dash, near instrument cluster) Diode (power window) (behind upper center of dash) Diode (step light) (behind upper left end of dash, near base of windshield) Diode (tvip) (behind upper left side of dash, near instrument cluster) Dome fuse 10a Door Door ind Driver's side j/b (behind lower left side of dash) Engine room r/b (on left side of engine compt) Gauge fuse 10a Hot at all times Hot in on or start Ignition key cylinder light Interior light J/c 21 (behind upper left side of dash, near instrument cluster) J/c 23 & 24 (behind left end of dash) J/c 3 (behind left kick panel) J/c 4 (behind left kick panel) J/c 5 (behind upper left side of dash, near instrument cluster) J/c 9 (behind upper left side of dash, near instrument cluster) J23 J24 Left door courtesy light Left front door courtesy switch Left rear lower door courtesy switch Left rear upper door courtesy switch Left vanity light Off Personal light Red Right door courtesy light Right front door courtesy switch Right rear lower door courtesy switch Right rear upper door courtesy switch Right vanity light Standard cab Step light W/ remote keyless entry W/o remote keyless entry Instrument Illumination Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Instrument Illumination Wiring Diagram for Toyota Tundra Limited 2003: 44 Ashtray illumination C12 Cigarette lighter illumination Diode (idle up) (4.7l) (behind upper right side of dash, near passenger air bag) Driver's side j/b (behind lower left side of dash) Ec (4.7l) (on left side of firewall) ed (3.4l) (on left side of engine) Els Engine room r/b (on left side of engine compt) Engine control module (behind right side of dash near "a" pillar) Glove box light Gnd Head Hot at all times I2 (in dash harness, behind upper left center of dash) I24 I25 Ie (behind left kick panel) Il-1 Ill+ Ill- Integration control & panel Integration relay J/b fuse 50a J/c 10 (behind upper left side of dash, near instrument cluster) J/c 12 (behind upper right side of dash, near passenger's air bag) J/c 13 (behind right kick panel) J/c 21 & 22 (behind upper left side of dash, near instrument cluster) a J/c 23 & 24 (behind left end of dash) J/c 3 (behind left kick panel) J/c 5 (behind upper left side of dash, near instrument cluster) J21 J22 J23 J24 Light control switch (combination switch) Meter illumination (combination meter) Mirror heater switch N4 (w/ drl) Off Radio & player Rheostat Steering switch (combination) switch Tail Tail fuse 15a
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 2) for Toyota Tundra Limited 2003 List of elements for Power Distribution Wiring Diagram (1 of 2) for Toyota Tundra Limited 2003: 67 (on left front fender) Abs2 fuse 40a Abs3 fuse 30a Alt fuse 140a 100a Alt-s fuse 7.5a Am1 fuse 40a Am2 fuse 30a Anti-lock brakes system Battery Canada Cruise control engine control systems Daytime running lights system Defogger system Dimmer relay Dome fuse 10a Drl no.4 relay Ecu-b fuse 5a Efi no.1 fuse 15a Engine control system (3.4l) power door lock system Engine room r/b (left side of engine compartment) Etcs fuse 10a (v8) 15a (v6) Except towing package Exterior lights system (fog lights) Exterior lights system (trailer tow) Exterior lights trailer system Exterior lights trailer tow systems Fog fuse 20a From acc fuse (diagram 2 of 2) From alt a fuse diagram 1 of 2 H-lp relay Haz fuse 20a Head lh fuse 10a Head ll fuse 10a Head rh fuse 10a Head rl fuse 10a Headlights system Headlights system (drl) Headlights system w/ drl Htr fuse 50a I2 (dash harness, behind upper left side of dash) J/b fuse 50a J/c 18 (left side of engine compt, under engine room r/b) J/c 3 (behind left kick panel) Mir htr fuse 30a Power outlet Power outlet relay Pwr outlet1 fuse 15a Pwr outlet2 fuse 20a Radio fuse 20a Red Short pin Sound system St3 fuse 30a Starting circuit Starting/charging system Sub batt fuse 30a To efi relay (diagram 2 of 2) To heater relay (diagram 2 of 2) To ignition switch (diagram 2 of 2) To ignition switch (diagram 2 of 2) To power fuse 30 (diagram 2 of 2) To tow tail fuse diagram 1 of 2 Tow brk fuse 30a Tow tail fuse 30a Towing fuse 30a Towing package Usa Power Distribution Wiring Diagram (2 of 2) for Toyota Tundra Limited 2003 List of elements for Power Distribution Wiring Diagram (2 of 2) for Toyota Tundra Limited 2003: 65 4wd fuse 20a A/c fuse 10a Acc Acc fuse 15a Acc relay (v8) Air conditioning system Anti-lock brakes, headlights, exterior lights, power windows, power door locks systems Anti-lock, cruise control, transmission, exterior lights, engine controls systems Cargo lp fuse 5a Cigarette lighter Drivers side j/b (behind lower left side of dash) Ecu ig fuse 5a Efi no.2 fuse 10a Efi relay Engine control Engine controls system Engine controls system (v8) Engine room r/b (left side of engine compartment) Exterior lights system Exterior lights, instrument cluster, cruise control,sound system, power mirrors, transmission, srs systems F10 F11 From efi no.1 fuse (diagram 1 0f 2) From engine room r/b, am1 fuse (diagram 1 of 2) From engine room r/b, am2 fuse (diagram 1 of 2) From htr fuse (diagram 1 of 2) From j/b fuse diagram 1 of 2 G10 G11 G12 G13 Gauge fuse 10a Heater relay Horn fuse 10a I2 (dash harn, upper left side of dash) Ign fuse 5a Ignition switch Inte- gration relay Integration relay J/c 1 (left side of engine compt, under engine room r/b) J/c 2 (left side of engine compt, under engine room r/b) J/c 3 (left kick panel) Lock Not used Obd fuse 7.5a Power door lock system Power fuse 30a Power relay Power windows system Red St relay (v6) Sta fuse 5a Start Starting/ charging system Starting/charging, instrument cluster, cruise control, transmission, srs, engine control systems Starting/charging, interior lights, defogger, warning exterior lights, wiper/washer, transmission, body computer systems Stop fuse 15a Systems Tail fuse To power outlet relay (diagram 1 of 2) Transmission system Transmission, starting/charging, engine control systems Turn fuse 5a Wip fuse 20a Wiper/washer system
POWER DOOR LOCKS Power Door Locks Wiring Diagram, with DRL, without Keyless Entry for Toyota Tundra Limited 2003 List of elements for Power Door Locks Wiring Diagram, with DRL, without Keyless Entry for Toyota Tundra Limited 2003: 49 (behind upper left side of dash, near instrument cluster) (behind upper left side of dash, near instrument cluster) connector 8 junction (in body harness, in left front door) b3 Act+ Act- C11 C12 C13 Combination meter Dome fuse 10a Driver side j/b (behind lower left side of dash) Engine room r/b (on left side of engine compartment) Gauge fuse 10a Hot at all times Hot in on or start Ie (behind left kick panel) Ih (behind right kick panel) Integration relay Interior lights syatem J21 J22 J23 J24 Junction connector 13 (behind right kick panel) Junction connector 21 & 22 Junction connector 23 & 24 (behind left end of dash) Junction connector 3 (behind left kick panel) Junction connector 4 (behind left kick panel) Junction connector 7 (behind upper left side of dash, near instrument cluster) Junction connector 8 (behind upper left side of dash, near instrument cluster) Left door key lock & unlk unlock switch Left door lock control lock switch (power window master switch) Left door lock motor & door unlock detection switch Lock N10 N19 N20 N21 N22 N23 N24 Power fuse 30a Right door key lock & lock unlock switch Right door lock control unlk switch Right door lock motor & door unlock detection switch T13 Tvip ecu (behind center of dash) Unlk Unlock warning switch Power Door Locks Wiring Diagram, without DRL without Keyless Entry for Toyota Tundra Limited 2003 List of elements for Power Door Locks Wiring Diagram, without DRL without Keyless Entry for Toyota Tundra Limited 2003: 45 (behind upper left side of dash, near instrument cluster) (in body harness, in left front door) b3 (near instrument cluster) (lock) diode Act+ Act- B7 (in body harness, in right front door) C11 C12 C13 Combination meter Diode (unlock) (near instrument cluster) Dome fuse 10a Driver side j/b (behind lower left side of dash) Engine room r/b (on left side of engine compartment) Gauge fuse 10a Hot at all times Hot in on or start Ie (behind left kick panel) Ih (behind panel) kick panel) Integration relay Interior lights system J21 J22 J23 J24 Junction connector 13 (behind right kick panel) Junction connector 21 & 22 Junction connector 23 & 24 (behind left end of dash) Junction connector 3 (behind left kick panel) Junction connector 4 (behind left kick panel) Junction connector 7 (behind upper left side of dash, near instrument cluster) Junction connector 8 L16 Left door key lock & unlk unlock switch Left door lock control lock switch (power window master switch) Left door lock motor & door unlock detection switch Lock Power fuse 30a Right door key lock & lock unlock switch Right door lock control unlk switch Right door lock motor & door unlock detection switch T13 Tvip ecu (behind center of dash) Unlk Unlock warning switch
POWER MIRRORS Power Mirrors Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Power Mirrors Wiring Diagram for Toyota Tundra Limited 2003: 23 A/t Acc fuse 15a Defogger system Down Driver's side j/b (behind lower left side of dash) G11 Hot in acc or on Ie (behind left kick panel) J/c 23 & 24 (behind left end of dash) J/c 9 (behind upper left side of dash, near instrument cluster) J23 J24 Left Left remote control mirror M/t Operation switch Red Remote control mirror switch Right Right remote control mirror Select switch W/ mirror heater W/o mirror heater
POWER SEATS Power Seats Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Power Seats Wiring Diagram for Toyota Tundra Limited 2003: 24 (behind left end of dash) junction connector 23 (behind left kick panel) ie Down Driver's lumbar support control motor Driver's lumbar support control switch Driver's power seat control switch Driver's side j/b (behind lower left side of dash) Front Front vertical Hot at all times Ie (behind left kick panel) Junction connector (under driver's seat) Junction connector 16 (under driver's seat) Power fuse 30a Power seat motor (driver's seat front vertical control) Power seat motor (driver's seat rear vertical control) Power seat motor (driver's seat reclining control) Power seat motor (driver's seat slide control) Rear Rear vertical Reclining Red Short pin (behind left kick panel) Slide
POWER WINDOWS Power Windows Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Power Windows Wiring Diagram for Toyota Tundra Limited 2003: 22 3.4l m/t w/o drl 4.7l m/t w/o drl Cls Driver's side j/b (behind lower left side of dash) Hot at all times Ie (behind left kick panel) Integration relay J21 J22 Junction connector (behind left kick panel) Junction connector 21 & 22 (near instrument cluster) Junction connector 23 & 24 (behind left end of dash) Left front power window motor Opn Power fuse 30a Power relay Power window master switch Power window motor (back window) Power window switch (back window) Right front power window motor Right power window control switch Window lock switch
RADIO Radio Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Radio Wiring Diagram for Toyota Tundra Limited 2003: 42 (in body harness, in left front door) b1 (in body harness, in right front door) b5 Acc Acc fuse 15a Acc1 Au1 Au2 Driver side j/b (behind lower left side of dash) Eau Engine room r/b (on left side of engine compartment) Fl+ Fl- Fr+ Fr- G10 Hot at all times Hot in on or acc I25 Ig (below center of dash) Ill Integration control & panel Interior lights system Left front door speaker Left rear door speaker Left tweeter Pnk R11 Radio & player Radio fuse 20a Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- Steering pad switch (combination switch) Sw1 Sw2 Swg W/ access cab
STARTING/CHARGING Charging Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Charging Wiring Diagram for Toyota Tundra Limited 2003: 23 100a Alt fuse 140a Alt-s fuse 7.5a Battery Battery ground C12 Charge warning light Combination meter Driver's side j/b (behind lower left side of dash) Engine room r/b (on left side of engine compt) Except towing F10 Gauge fuse 10a Generator Hot in on or start Hot in start Ign fuse 5a Junction connector 1 (on left side of engine compt, under engine room r/b) Junction connector 11 (behind upper right side of dash, near passenger's air bag) Nca Towing W/ drl W/o drl
3.4L 3.4L, Starting Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 3.4L, Starting Wiring Diagram for Toyota Tundra Limited 2003: 40 (behind center of dash) (behind upper left side of dash, near instrument cluster) junction connector 8 A j23 A j24 A/t Acc Am2 fuse 30a Battery Battery ground Clutch start cancel switch (m/t) (above break pedal) Clutch start switch (m/t) (above clutch pedal) Driver's side j/b (behind lower left side of dash) Engine control module (behind right side of dash, near ``a" pillar) Engine room r/b (on left side of engine compt) Entry Entry) Gauge fuse 10a Hot in on or start I1 (in dash harness, behind upper left end of dash) Ie (behind left kick panel) Ignition switch Junction connector 2 (on left side of engine compt, under engine room r/b) Junction connector 23 & 24 (behind left end of dash) Nca Nsw Off P/n Park/ neutral position switch (a/t) (on transmission) Pnk Pnk a Solid state Srly Sta Sta fuse 5a Start Starter Starter relay T13 Tvip ecu (w/ keyless W/o keyless
4.7L 4.7L, Starting Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 4.7L, Starting Wiring Diagram for Toyota Tundra Limited 2003: 31 Acc Am2 fuse 30a Battery Battery ground Driver's side j/b (behind lower left side of dash) Ea (on left front fender) Engine control module (behind right side of dash, near "a" pillar) Engine room r/b (on left side of engine compt) I3 (in dash harness, behind right side of dash) Ignition switch Junction connector 18 (on left side of engine compt, under engine room r/b) Junction connector 2 (on left side of engine compt, under engine room r/b) Junction connector 20 (behind upper right side of dash) Keyless entry Lock Nca Nsw Park/ neutral position switch (on transmission) Pnk Srly St3 fuse 30a Sta Sta fuse 5a Star Start Starter Starter relay Stsw T13 Tvip ecu (w/ keyless entry) (behind center of dash) W/o
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Supplemental Restraints Wiring Diagram for Toyota Tundra Limited 2003: 67 (behind left kick panel) ie 6 cyl 8 cyl Acc Acc fuse 15a Air bag squib (front passenger air bag assembly) Air bag squib (steering wheel pad) Bench seat C12 C13 Center air bag sensor assembly (behind lower center of dash, on transmission tunnel) Combination meter Connection detection pin Data link connector (dlc) 3 (partial) (below left side of dash, near center console) Dome fuse 10a Driver side j/b (behind lower left side of dash) Ecu+ Ecu- Engine control module (behind right side of dash, near "a" pillar) Engine room r/b (on left side of engine compartment) F/ps G10 Gnd Gnd1 Gsw2 Hot at all times Hot in acc or on Hot in on or start I24 I25 Ie (left kick panel) Ig2 Ign fuse 5a Ih (right kick panel) Ind Integration control & panel J/c 10 (behind upper left side of dash, near combination meter) J/c 13 (right kick panel) J/c 5 (behind upper left side of dash, near combination meter) J/c 8 (behind upper left side of dash, near combination meter) Lbe+ Left buckle switch inside driver's seat belt buckle) Left front air bag sensor (on front left side of engine compartment) Left pretensioner (near bottom of left "b" pillar) Passenger air bag manual on-off switch Pind Pl+ Pl- Pr+ Pr- Rbe+ Red Right front air bag sensor (on front right side of engine compartment) Right pretensioner (near bottom of right "b" pillar) Seat belt warning occupant detection sensor (under front passenger's seat) Sil Sl+ Sl- Solid state Spiral cable Sqb+ Sqb- Sr+ Sr- Srs warning light W/o power seat W/power seat
TRANSMISSION
3.4L 3.4L, 4WD Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 3.4L, 4WD Wiring Diagram for Toyota Tundra Limited 2003: 37 (a/t) 4wd 4wd fuse 20a 4wd ind A/t A/t p ind Abs actuator with ecu (right rear of engine compt) Acc fuse 15a Add actuator (front of engine) C11 C12 C14 Combination meter Detection switch (4wd position) (transfer case) Detection switch (l4 position) (transfer case) Detection switch (neutral position) (transfer case) Diode (a/t) (behind upper left side of dash) Driver side j/b (lower left side of dash) Engine control module (behind right side of dash) Ex13 G11 Gauge fuse 10a Hot in on or acc Hot in on or start J/c 10 (behind upper left side of dash) J/c 11 (behind upper right side of dash) J/c 12 (behind upper right side of dash) J/c 13 (right kick panel) J/c 8 (behind upper left side of dash) J/c 9 (behind upper left side of dash) M/t Neutral position switch (part of park/ neutral position switch) Red Tfn Transmission control relay (behind lower right side of dash) W/ door lock ctrl W/o door lock ctrl 3.4L, A/T Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 3.4L, A/T Wiring Diagram for Toyota Tundra Limited 2003: 75 (behind upper left side of dash) (behind upper left side of dash) diode (behind upper left side of dash) j/c 8 (dash harn, behind right side of dash) i3 (left side of engine compt) (on transaxle) park/neutral position switch A/t oil temp A/t oil temperature sensor (on trans- mission) Acc fuse 15a Batt C11 C12 C13 C14 Combination meter Driver side j/b (lower left side of dash) E01 E02 E03 Ea (left front fender) Ed (left side of engine) Efi 1 fuse 20a Efi relay Electronically controlled transmission solenoids Engine control module (behind right side of dash, near "a" pillar) Engine coolant temperature sensor (front of engine) Engine room r/b (left side of engine compt) F11 G11 Gauge fuse 10a Hot at all times Hot in on or acc Hot in on or start Hot in start Ie (behind left kick panel) Ign fuse 5a Igsw Ih (behind right kick panel) J/c J/c 12 (behind upper right side of dash) J/c 18 (left side of engine compt) J/c 5 (behind upper left side of dash) J/c 8 (behind upper left side of dash) J/c 9 (behind upper left side of dash) Me01 Mrel No. 1 No. 2 No. 3 Nsw O/d main switch (center of dash) O/d off Odlp Odms Oil Oilw Pnk Red Slt Slt+ Slt- Sp1 Sp2+ Sp2- Sta Sta fuse 5a Starting system Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Stp Throttle position sensor (on throttle body assembly) Thw Vehicle speed sensor (on trans- mission) Vta Vta2
4.7L 4.7L, 4WD Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 4.7L, 4WD Wiring Diagram for Toyota Tundra Limited 2003: 55 (behind upper right side of dash) (dah harn, behind right side of dash) i3 2-4 4hi ind 4lo ind 4wd 4wd control ecu (right kick panel) 4wd fuse 20a Abs actuator with ecu (right rear of engine compt) Acc fuse 15a Add Add actuator (center rear of engine compt) C11 C12 C13 C14 Combination meter Detection switch (4wd position) (transfer case) Detection switch (l4 position) (transfer case) Diode (a/t) (behind upper left side of dash) Dl1 Dl2 Dm1 Dm2 Driver side j/b (lower left side of dash) Engine control module (behind right side of dash) Ex13 G11 Gauge fuse 10a Gnd H-l Hot in on or acc Hot in on or start I24 Ind1 Ind2 Integration control & panel (behind center of dash) J/c 11 (behind upper right side of dash) J/c 12 J/c 13 (right kick panel) J/c 8 (behind upper left side of dash) J/c 9 (behind upper left side of dash) Neutral position switch (part of park/ neutral position switch) Pnk Red Spd Speedo Tl1 Tl2 Tl3 Tm1 Tm2 Transfer shift actuator (on transfer case) W/ door lock ctrl W/o door lock ctrl 4.7L, A/T Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 4.7L, A/T Wiring Diagram for Toyota Tundra Limited 2003: 84 (behind upper left side of dash) (behind upper left side of dash) diode (behind upper left side of dash) j/c 8 (behind upper left side of dash) j/c 9 (dash harn, upper right side of dash) (left front fender) ea (left side of engine compt) (left side of firewall) ec (on transaxle) park/neutral position switch (right rear of engine) eb +b2 A/t oil temp A/t oil temperature sensor (on trans- mission) Acc fuse 15a Batt C11 C12 C13 C14 Combination meter Driver side j/b (lower left side of dash) E01 E02 E03 Efi 1 fuse 20a Efi relay Electronically controlled transmission solenoids Engine control module (behind right side of dash, near "a" pillar) Engine coolant temperature sensor (right front of engine) Engine room r/b (left side of engine compt) F11 G11 Gauge fuse 10a Gw01 Hot at all times Hot in on or acc Hot in on or start Hot in start Ie (behind left kick panel) Ign fuse 5a Igsw Ih (behind right kick panel) J/c J/c 11 (behind upper right side of dash) J/c 12 (behind upper right side of dash) J/c 18 (left side of engine compt) J/c 5 (behind upper left side of dash) J/c 8 (behind upper left side of dash) Me01 Mrel Nc0- Nco+ No. 1 No. 2 No. 3 Nsw O/d direct clutch speed sensor (left side of trans- mission) O/d main switch (center of dash) O/d off Odlp Odms Oilw Pnk Red Slt Slt+ Slt- Sp2+ Sp2- Spd Sta Sta fuse 5a Star Starting system Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Stp Stsw Thoc Throttle position sensor (on throttle body assembly) Thw Vehicle speed sensor (on trans- mission) Vta Vta2
WARNING SYSTEMS Warning Systems Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Warning Systems Wiring Diagram for Toyota Tundra Limited 2003: 30 (behind left end of dash) (w/ pwr seat) (bench seat) (separate seat) C11 C12 C13 Combination meter Diode (door courtesy) (behind upper left side of dash, near instrument cluster) Dome fuse 10a Door ind Driver side j/b (behind lower left side of dash) Engine room r/b (on left side of engine compt) Gauge fuse 10a Hot at all times Hot in on or start Ie (behind left kick panel) Ih (behind right kick panel) J/c 10 (behind upper left side of dash, near instrument cluster) J/c 23 & 24 J/c 4 (behind left kick panel) J/c 7 (behind upper left side of dash, near instrument cluster) J/c 8 (behind upper left side of dash, near instrument cluster) J/c 9 (behind upper left side of dash, near instrument cluster) J23 J24 Left buckle switch (inside driver's seat belt buckle) Left front door courtesy switch Seat belt warning indicator Unlock warning switch W/ door lock control W/o door lock control
WIPER/WASHER 2-Speed Wiper/Washer Wiring Diagram for Toyota Tundra Limited 2003 List of elements for 2-Speed Wiper/Washer Wiring Diagram for Toyota Tundra Limited 2003: 21 C11 C17 Combi- nation meter Combination switch Driver side j/b (behind lower left side of dash) Ea (on left front fender) Gauge fuse 10a High Hot in on or start J/c 13 (behind right kick panel) J/c 3 (behind left kick panel) Low Mist Off Wash Washer level sensor (washer motor) (in right front corner of engine compt, behind headlight) Washer level warning light Washer motor (on right side of engine compartment, behind headlight) Wip fuse 20a Wiper motor (in right rear corner of engine compt) Wiper/ washer switch Interval Wiper/Washer Wiring Diagram for Toyota Tundra Limited 2003 List of elements for Interval Wiper/Washer Wiring Diagram for Toyota Tundra Limited 2003: 22 C11 C17 Combi- nation meter Combination switch Driver side j/b (behind lower left side of dash) Ea (on left front fender) Gauge fuse 10a High Hot in on or start Int J/c 13 (behind right kick panel) J/c 3 (behind left kick panel) Low Off Solid state Wash Washer level sensor (washer motor) (in right front corner of engine compt, behind headlight) Washer level warning light Washer motor (on right side of engine compt, behind headlight) Wip fuse 20a Wiper motor (in right rear corner of engine compt) Wiper/ washer switch
