Diagram sections — 28 (47 total)
AIR CONDITIONING ANTI-LOCK BRAKES BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Manual A/C Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Manual A/C Wiring Diagram (1 of 2) for Scion xB 2008: 52 (left rear of engine) b1 (on left front of engine) engine coolant temperature sensor A/c A/c amplifier (center of dash) A/c compressor A/c pressure sensor (right rear of engine compt) A/c thermistor (right side of dash) A36 B2 (left rear of engine) B33 C1 (left kick panel) Can h Can l Canh Canl Crankshaft position sensor (on lower front of engine) E17 E18 Ecu-ig 2 fuse 10a Engine control module (left side of engine compt) Engine room j/b (left side of engine compt) Ethw Fan h Fan l Gnd H12 Hot at all times Hot in on or start Htr fuse 50a Htr relay Htr-ig fuse 10a Ig+ Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) J/c a33 (left side of dash) J/c c48 (behind center of dash) K12 Led Nca Ne + Ne - Pnk Pre Q10 Red S5-3 Sblw Sg-2 Sg-3 Sol+ Sol- Thw Manual A/C Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Manual A/C Wiring Diagram (2 of 2) for Scion xB 2008: 38 (at left front of engine compt) radiator fan motor (attached to a/c condenser) a/c condenser fan motor (left side of dash) j/c a31 & a32 (lower right side of dash) blower motor A/c switch A/m & a/c sw A1 (behind left headlight) A31 A32 Air inlet control switch (behind center of dash) B24 Blower motor resistor (behind right side of dash) C4 (right side of dash) C46 C47 Cds fan fuse 30a Damper servo motor (behind right side of dash) Def- logic Ecu-ig 1 fuse 10a Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) F/r switch Fan 1 relay Fan 2 relay Fan 3 relay Frs Hot at all times Hot in on or start Ig+ Instrument panel j/b (behind left side of dash) Integration control & Interior lights system J/c c46 & c47 (right side of dash) Panel assembly Pnk Rdi fan fuse 40a Rec Red
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Scion xB 2008: 51 (behind left headlight) a2 +bs Abs 1 fuse 50a Abs 3 fuse 30a B12 B18 B21 B24 B30 Bat C1 (left kick panel) Canh Canl Computer data lines system Csw E17 Ecu b fuse 10a Ecu ig 1 fuse 10a Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Ess F10 Fl+ Fl- Fr+ Fr- Gnd Gnd1 Gnd2 H12 Hot at all times Hot in on or start Ig1 Instrument panel j/b (behind left side of dash) Interior lights system J/b 4 (center of dash) J/c a31 (left side of dash) Pnk Red Rl+ Rl- Rr+ Rr- S11 Skid control ecu (w/ actuator) (left side of engine compartment) Steering sensor (on steering column) Stop fuse 10a Stoplight switch (on bracket, above brake pedal) Stp Vsc off sw Yaw rate sensor (under center console) Anti-lock Brakes Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Scion xB 2008: 32 5v ic 5v+b Abs ind Brake ind Buzzer C10 C2 (left side of dash) C37 Can controller Can i/f Canh Canl main body ecu Combination meter Computer data lines system Cpu Hot in on or start I/f Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Led driver Left front speed sensor (left front hub assembly) Left rear speed sensor (left rear hub assembly) Meter fuse 7.5a N11 Parking brake switch Pkb Pnk Red Right front speed sensor (right front hub assembly) Right rear speed sensor (right rear hub assembly) Slip ind Vsc ind
BODY CONTROL MODULES Body Control Modules Wiring Diagram for Scion xB 2008 List of elements for Body Control Modules Wiring Diagram for Scion xB 2008: 88 (left kick panel) c1 A/c amplifier (center of dash) A21 A36 Acc Acc fuse 7.5a Act+ Act- Actd Altb B28 B30 Bcty Bdsu Becu Bus buffer (right side of dash) Bzr C17 C34 C37 Can+ Can- Canh Canl Center air bag ecu (center of dash) Combination meter Dcty Dlc3 (left side of dash) Door fuse 25a Door locks system E17 E19 E20 E23 Ecu-b fuse 7.5a Ecu-ig fuse 10a Engine control module (left side of engine compt) Engine room r/b (on left side of engine compt) Exterior lights system Gnd1 H13 H14 H17 H18 Haz Headlights system Horn Horns system Hot at all times Hot in on or acc Hot in on or start Hrly Ile Instrument cluster system Instrument panel j/b (behind left side of dash) Interior lights & warning systems Interior lights system J/b 3 (left side of dash) J/b 4 (center of dash) J/c a33 (left side of dash) J/c c48 (behind center of dash) Ksw Lcty Lin2 Lsr Lswd Lswp Main body ecu (left side of dash) Mpx1 Pcty Pkb Pnk Power steering ecu (left side of dash) Power windows system Prg Pws Rcty Rda Red Skid control ecu (w/ actuator) (left side of engine compt) Sliding roof control ecu Steering sensor (on steering column) Tr+ Trly Trunk, tailgate, fuel doors system Ul1 Ul3 Yaw rate sensor (under center console)
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Scion xB 2008 List of elements for Computer Data Lines Wiring Diagram for Scion xB 2008: 45 (center of dash) center airbag ecu (center of dash) j/b 4 (left side of dash) (near right "c" pillar) tire pressure warning ecu (under front passenger's seat) occupant classification ecu A/c amplifier (center of dash) A36 B2 (left rear of engine) B23 B25 Bus buffer (right side of dash) C1 (left kick panel) C17 C34 C37 Can+ Can- Canh Canl Combination meter Data link connector 3 Dia E10 E12 E17 E31 Engine control module (left side of engine compt) G12 H11 Hot at all times Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) J/c a33 (left side of dash) J/c c48 (behind center of dash) Main body ecu (left side of dash) Obd fuse 7.5a Pnk Power steering ecu (left side of dash) Q11 Red Sil Skid control ecu w/ actuator (left side of engine compt) Steering sensor (on steering column) Tach Yaw rate sensor (under center console)
COOLING FAN Cooling Fan Wiring Diagram for Scion xB 2008 List of elements for Cooling Fan Wiring Diagram for Scion xB 2008: 27 (at left front of engine compt) radiator fan motor (on left side of engine compt) engine room r/b A/c condenser fan motor (attached to a/c condenser) A1 (behind left headlight) A31 A32 A36 B24 B33 Cds fan fuse 30a Ecu-ig 1 fuse 10a Engine control module (left side of engine compt) Engine coolant temperature sensor (on left front of engine) Engine room j/b (left side of engine compt) Ethw Fan relay 1 Fan relay 2 Fan relay 3 Fanh Fanl Hot at all times Hot in on or start Instrument panel j/b (behind left side of dash) J/c a31 & a32 (left side of dash) Rdi fan fuse 40a Red Thw
CRUISE CONTROL Cruise Control Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Cruise Control Wiring Diagram (1 of 2) for Scion xB 2008: 63 (left side of dash) junction connector a31 & a32 (left side of dash) junction connector a33 (on bracket, above brake pedal) +res -set A/t A1 (behind left headlight) A31 A32 A36 Accelerator position sensor (left side of dash) B18 B2 (left rear of engine) B33 Batt Cancel Canh Canl Ccs Computer data lines system Cruise control switch E01 Ecc Efi 1 fuse 10a Efi main fuse 20a Efi main relay Engine control module (left side of engine compt) Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Epa Epa2 Eta Ge01 Hot at all times Hot in on or start Ign fuse 7.5a Igsw Instrument panel j/b (behind left side of dash) Junction connector a31 & a32 (left side a321 of dash) M/t Mass air flow meter (on left side of eng compt) Mrel Nca On/off Pnk Red Spd Spiral cable Spiral cable (in steering column) St1- Stop fuse 7.5a Stop light switch Stp Tach Throttle position sensor (on throttle body assembly) Vcp2 Vcpa Vcta Vpa Vpa2 Vta Vta1 Vta2 Cruise Control Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Cruise Control Wiring Diagram (2 of 2) for Scion xB 2008: 47 5v ic 5v+b A31 B19 B24 C10 C2 (left side of dash) C37 Can controller Can i/f Canh Canl Cl+ Cl- Combination meter Computer data lines system Cpu Cruise control clutch switch Cruise ind Display Ecu-ig 1 fuse 10a Ecu-ig 2 fuse 10a Fl+ Fl- Fr+ Fr- Hot in on or start I/f Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Junction connector a31 & a32 (m/t) a32 (left side of dash) Led driver Left front speed sensor (left front hub assembly) Left rear speed sensor (left rear hub assembly) Meter fuse 7.5a N11 Park/neutral position switch (on left rear of transmission) Pnk Red Right front speed sensor (right front hub assembly) Right rear speed sensor (right rear hub assembly) Rl+ Rl- Rr+ Rr- Skid control ecu (w/ actuator) (left side of engine compt) Sp1
DEFOGGERS Defoggers Wiring Diagram for Scion xB 2008 List of elements for Defoggers Wiring Diagram for Scion xB 2008: 24 A36 C4 (right side of dash) Def fuse 30a Def relay Ecu-ig 2 fuse 10a Els1 Engine control module (left side of engine compt) Hot at all times Hot in on or start Htr-ig fuse 10a Instrument panel j/b (behind left side of dash) Integration control & panel assembly Interior lights system J/b 4 (center of dash) J/c h21 (at left "c" pillar) L1 (right rear of chassis) M11 Mir htr fuse 10a Noise filter (stop light & rear window defogger) (at right side floor pan) Q10 Q12 Rear window defogger Rear window defogger switch Timer circuit
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Scion xB 2008 List of elements for Electronic Power Steering Wiring Diagram for Scion xB 2008: 41 (center of dash) j/b 4 (left side of dash) a5 5v ic 5v+b A24 C10 C2 (left side of dash) C34 C37 Can controller Can i/f Canh Canl Combination meter Computer data lines system Cpu Ecu-ig 1 fuse 10a Engine room j/b (left side of engine compt) Eps fuse 60a Eps ind Hot at all times Hot in on or start Instrument panel j/b (behind left end of dash) J/b 4 (center of dash) Led driver Meter fuse 7.5a N11 P1g Pgnd Pnk Power steering ecu (left side of dash) Power steering motor (left side of dash) Power steering torque sensor (left side of dash) Rcos Rgnd Rotation angle sensor (left side of dash) Rsin Trq1 Trq2 Trqg Trqv
ENGINE PERFORMANCE
2.5L 2.5L, Engine Performance Wiring Diagram (1 of 4) for Scion xB 2008 List of elements for 2.5L, Engine Performance Wiring Diagram (1 of 4) for Scion xB 2008: 72 (in fuel tank) fuel gauge sender +b2 +bm A1 (behind left headlight) A31 A32 A36 Accelerator position sensor (left side of dash) B10 B11 B18 B2 (left rear of engine) B30 Batt C/opn relay C1 (left kick panel) Canh Canister pressure sensor Canister pump module (left "d" pillar) Canl Ccs Computer data lines system Cooling fans system Cruise control system Defogger system E17 Ecu-b fuse 10a Efi 1 fuse 10a Efi 2 fuse 10a Efi main fuse 20a Efi main relay Els1 Els3 Engine control module (left side of engine compt) Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Epa Epa2 Etcs fuse 10a Exterior lights system Fanh Fanl H12 H2 (at left "b" pillar) Hot at all times Hot in on or start Ign fuse 7.5a Igsw Instrument panel j/b (behind left side of dash) J/c a31 & a32 (left side of dash) Leak detection pump Mpmp Mrel Pnk Pump Red Sftd Sftu Spd St1- Sta Starting/charging system Stop fuse 10a Stop light switch (on bracket, above brake pedal) Stp Tach Vcp2 Vcpa Vent valve Vpa Vpa2 Vpmp 2.5L, Engine Performance Wiring Diagram (2 of 4) for Scion xB 2008 List of elements for 2.5L, Engine Performance Wiring Diagram (2 of 4) for Scion xB 2008: 38 (left rear of engine compt) vsv (purge) (left rear of engine) b1 (left rear of engine) b2 5v ic 5v+b Alt B33 C10 C2 (left side of dash) C36 C37 Can controller Can i/f Combination meter Computer data lines system Cpu E01 E02 E04 Engine control module (left side of engine compt) Ht1b I/f J/b 4 (center of dash) Led driver Malfunction ind lamp Me01 N10 N11 Nsw Pnk Prg Red S11 Sl1+ Sl2+ Sl2- Starting/ charging system Transmission control switch 2.5L, Engine Performance Wiring Diagram (3 of 4) for Scion xB 2008 List of elements for 2.5L, Engine Performance Wiring Diagram (3 of 4) for Scion xB 2008: 50 (behind left headlight) a1 (left side of dash) j/c a32 A/t A31 A32 B19 B24 Canh Canl Cl+ Cl- Computer data lines system Cruise control clutch switch Dsl Ecu-ig 1 fuse 10a Ecu-ig 2 fuse 10a Electronically controlled transmission solenoid (on left side of transmission) Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Heated oxygen sensor (bank 1 sensor 2) (on exhaust system, after catalytic converter) Hot at all times Hot in on or start Ht1b Ig2 2 fuse 15a Ig2 fuse 15a Ig2 relay Instrument panel j/b (behind left side of dash) J/b 3 (left side of dash) J/b 4 (center of dash) J/c a31 & a32 (left side of dash) M/t Meter fuse 7.5a Nca Ox1b Park/ neutral position switch (on left rear of transmission) Pnk Red Skid control ecu (w/ actuator) (left side of engine compt) Sl1+ Sl1- Sl2+ Sl2- Slt+ Slt- Sp1 Tho Throttle position sensor (on throttle body assembly) Transmission revolution sensor (electronically controlled transmission) (on transmission assembly) Vta Vta2 2.5L, Engine Performance Wiring Diagram (4 of 4) for Scion xB 2008 List of elements for 2.5L, Engine Performance Wiring Diagram (4 of 4) for Scion xB 2008: 67 (left rear of engine) b1 (left rear of engine) b2 (on top of cylinder head cover) A1a+ A1a- Air fuel ratio sensor (bank 1 sensor 1) (mounted in exhaust pipe) B2 (left rear of engine) B33 Camshaft position sensor (rear of cylinder head) Camshaft timing oil control valve (on right front of engine) Crankshaft position sensor (on lower front of engine) Dsl E03 E2g Eknk Engine control module (left side of engine compt) Engine coolant temperature sensor (on left front of engine) Eppm Eta Etha Etho Ethw Ex1b Fuel injectors G2+ G2- Ge01 Gnd Ha1a Igf Igf1 Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Igt1 Igt2 Igt3 Igt4 Knk1 Knock sensor (bank 1) (on left side of cylinder block) Mass air flow meter (on left side of engine compt) Nc+ Nc- Nca Ne+ Ne- Noise filter (ignition) (on rear of engine) Nt+ Nt- Oc1+ Oc1- Ox1b Pnk Ppmp Red Sl1- Slt+ Slt- Tha Tho1 Thw Transmission revolution sensor (turbine) (on transmission assembly) Vcpp Vcta Vta1 Vta2
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Scion xB 2008 List of elements for Backup Lamps Wiring Diagram for Scion xB 2008: 18 A/t A30 B17 B19 B33 Backup light Backup light switch (on left side of transmission) Ecu-ig 2 fuse 10a Engine control module (left side of engine compt) H1 (at left "c" pillar) H22 H23 Hot in on or start Instrument panel j/b (behind left side of dash) J/c h22 & h23 (at left "c" pillar) M/t Park/neutral position switch (on left rear of transmission) Red Exterior Lamps Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Scion xB 2008: 66 (behind left side of dash) instrument panel j/b (left kick panel) c1 (right side of dash) c4 A1 (behind left headlight) A10 A11 A12 A27 A28 A29 A3 (behind right headlight) A34 A35 B14 B15 B31 B32 B33 C1 (left kick panel) C10 C2 (left side of dash) C36 C37 Combination meter Cpu D10 E10 E11 E17 Ecu-ig 2 fuse 10a Engine room r/b (on left side of engine compt) Flash relay Haz Hazard warning signal switch Head Headlight dimmer switch assembly Hot at all times Hot in on or start J/b 4 (center of dash) J/c a34 & a35 Led driver Left front parking light Left front turn signal light Left outer rear view mirror Left turn ind Light control switch Meter fuse 7.5a N11 Off Pnk Right front parking light Right front turn signal light Right outer rear view mirror Right turn ind S11 S12 S13 S16 S17 T-lp relay Tail Tail fuse 10a Tail ind Turn Turn switch Turn-haz fuse 10a Exterior Lamps Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Scion xB 2008: 39 (on bracket, above brake pedal) stop light switch A1 (behind left headlight) A3 (behind right headlight) A31 A32 A36 B12 B18 B21 Els3 Engine control module (left side of engine compt) H1 (at left "c" pillar) H22 H23 High mounted stop light Hot at all times Hot in on or start Ign fuse 10a Instrument panel j/b (behind left side of dash) J/c (in tailgate assembly) J/c a31 & a32 (left side of dash) J/c a31 (left side of dash) J/c h22 & h23 (at left "c" pillar) L1 (right rear of chassis) Left front side marker light Left license plate light Left rear combination light Noise filter (stop light & rear window defogger) (at right side floor pan) Right front side marker light Right license plate light Right rear combination light Shift lock control ecu (center of dash) Skid control ecu (w/ actuator) (left side of engine compt) St1- Stop Stop fuse 10a Stp Tail Turn
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Scion xB 2008 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Scion xB 2008: 44 (left side of engine compt) engine room j/b (on left side of engine compt) engine room r/b A/c compressor A1 (behind left headlight) A2 (behind left headlight) A24 A3 (behind right headlight) A36 A5 (left side of dash) Air fuel ratio sensor (bank 1 sensor 1) shield B1 (left rear of engine) B2 (left rear of engine) B33 Brake fluid level warning switch Camshaft position sensor shield Canister pump module Crankshaft position sensor shield Dlc3 E12 Efi main relay Engine control module Fan 2 relay Front wiper motor G12 Heated oxygen sensor (bank 1 sensor 2) shield Ig2 relay Ignition coil J/b 4 (center of dash) J/c a32 (left side of dash) Knock sensor (bank 1) shield Left front parking light & left front turn signal light Left front side marker light Left high headlight Left low headlight Nca Power steering ecu Radiator fan motor Right front parking light & right front turn signal light Right front side marker light Right high headlight Right low headlight Skid control ecu w/ actuator Spiral cable Wireless door lock buzzer Ground Distribution Wiring Diagram (2 of 3) for Scion xB 2008 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Scion xB 2008: 50 (center of dash) r/b 5 A/c amplifier Acc relay Air inlet control switch C1 (left kick panel) C12 C17 C2 (left side of dash) C36 C37 Center air bag ecu Combination meter Dlc3 E12 E14 E17 E18 E30 Flasher relay Hazard warning signal switch Headlight dimmer switch assembly Htr relay Ig 1 relay Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Key interlock solenoid Left front door lock motor Left outer rear view mirror Main body ecu Map light assembly Noise filter Outer mirror switch Power window regulator master switch Pwr relay Rheostat Room light Shift lock control ecu Sliding roof control ecu St relay Steering sensor Telltale lamp assembly Tire pressure warning ecu Tire pressure warning reset switch Transmission control switch Unlock warning switch Vsc off switch W/ sliding roof W/o sliding roof Windshield wiper switch Yaw rate sensor Ground Distribution Wiring Diagram (3 of 3) for Scion xB 2008 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Scion xB 2008: 33 Back door lock assembly Back door opener switch Backup light Blower resistor C3 (center of dash) C4 (right side of dash) C5 (center of dash) Door control receiver Fuel sender gauge H1 (at left "c" pillar) H2 (at left "b" pillar) H22 H23 High mounted stop light I1 (right rear of chassis) I2 (right rear of chassis) Integration control & panel assembly J/c h22 & h23 (at left "c" pillar) h22 L1 (right rear of chassis) Left license plate light Left rear combination light Left rear door lock motor Occupant classification ecu Power outlet socket Radio receiver assembly Rear window defogger Rear wiper motor Right front door lock motor Right front door lock switch Right license plate light Right outer rear view mirror Right rear combination light Right rear door lock motor
HEADLIGHTS Headlights Wiring Diagram for Scion xB 2008 List of elements for Headlights Wiring Diagram for Scion xB 2008: 34 (center of dash) j/b 4 A1 (behind left headlight) A3 (behind right headlight) B16 Beam C1 (left kick panel) C16 C36 Combination meter Dimmer relay Dimmer switch E17 Engine room j/b (on left side of engine compt) Engine room r/b (on left side of engine compt) Flash H-lp lh hi fuse 10a H-lp lh lo fuse 15a H-lp main fuse 50a H-lp relay H-lp rh hi fuse 10a H-lp rh lo fuse 15a Head Headlight dimmer switch assembly Hot at all times Instrument panel j/b (behind left side of dash) Left high headlight Left low headlight Light control switch Off Pnk Red Right high headlight Right low headlight Tail
HORN Horn Wiring Diagram for Scion xB 2008 List of elements for Horn Wiring Diagram for Scion xB 2008: 15 B28 E25 Engine room j/b (left side of engine compt) High pitched horn (behind right side of front grille) Horn Horn fuse 10a Horn relay Horn switch Hot at all times Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Low pitched horn (behind left side of front grille) Main body ecu Spiral cable (in steering column) Steering pad switch
INSTRUMENT CLUSTER
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Scion xB 2008 List of elements for Courtesy Lamps Wiring Diagram for Scion xB 2008: 47 A10 A13 A21 B13 B30 Back door lock assembly (in rear tailgate) Bcty Becu C1 (left kick panel) Courtesy Dcty Diode (at right side floor pan) Dome fuse 10a Door E17 E19 E20 E23 Ecu-b fuse 10a Ecu-ig 1 fuse 10a Engine room r/b (on left side of engine compt) Gnd1 H14 Hot at all times Hot in on or start Ile Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Junction connector h21 (at left "c" pillar) Ksw L1 (right rear of chassis) Lcty Left front door courtesy switch (on left "b" pillar) Left rear door courtesy switch (on left "c" pillar) Main body ecu Map light assembly Off Pcty Pnk Q10 Rcty Right front door courtesy switch (on right "b" pillar) Right rear door courtesy switch (on right "c" pillar) Room light Unlock warning switch W/ sliding roof W/o sliding roof Instrument Illumination Wiring Diagram for Scion xB 2008 List of elements for Instrument Illumination Wiring Diagram for Scion xB 2008: 61 5v ic A/c switch A11 A12 Air inlet control switch (behind center of dash) Alt fuse 120a B12 C1 (left kick panel) C10 C12 C2 (left side of dash) C27 C3 (center of dash) C37 Combination meter Cpu D10 D12 E12 E17 E18 Engine room j/b (left side of engine compt) F12 Gnd Hazard warning signal switch Head Headlight dimmer switch assembly Hot at all times Hot in on or start I/f Ill+ Ill- Illumination Instrument panel j/b (behind left side of dash) Integration control & panel assembly J/b 3 (left side of dash) J/b 4 (center of dash) K11 L11 L12 Light control switch M12 Meter fuse 7.5a N11 N12 O12 Off P12 Panel fuse 7.5a Pnk Radio receiver assembly Rheostat S12 Spiral cable (in steering column) Steering pad switch Swg T-lp relay Tail Telltale lamp assembly Transmission control switch Vcc off switch
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Power Distribution Wiring Diagram (1 of 2) for Scion xB 2008: 63 (left side of engine compt) engine room j/b (on left side of engine compt) engine room r/b A1 (behind left headlight) A13 Abs 1 fuse 50a Abs 3 fuse 30a Alt fuse 120a Alt s fuse 7.5a Am2 fuse 30a Anti-lock brakes system B13 B30 B32 Battery Becu C/opn relay C15 Cds fan fuse 30a Cooling fans system Dcc Dome fuse 10a Door locks system E16 Ecu b fuse 10a Efi main fuse 20a Efi main relay Electronic power steering system Engine controls & exterior lights systems Engine controls system Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Eps fuse 60a Etcs fuse 10a Flasher relay H-lp main fuse 50a H12 Headlights system Horn fuse 10a Horn relay Htr fuse 50a Htr relay Ig2 2 fuse 7.5a Ig2 fuse 15a Ig2 relay Ign fuse 7.5a Instrument cluster & anti-lock brakes systems Instrument cluster system Instrument panel j/b (behind left side of dash) Interior lights system Junction connector a32 (left side of dash) Main body ecu Meter fuse 7.5a P/i fuse 50a Pnk Rad 1 fuse 15a Rdi fan fuse 40a Red Sound systems Starting/ charging system Starting/charging system To ignition switch (diagram 2 of 2) To instrument panel j/b (diagram 2 of 2) Turn haz fuse 10a Power Distribution Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Power Distribution Wiring Diagram (2 of 2) for Scion xB 2008: 73 (not used) A10 A25 A29 Acc Acc b fuse 25a Acc fuse 7.5a Acc relay Air conditioning & defogger systems Air conditioning system Altb Am1 Am1 fuse 7.5a Am2 B15 B18 B19 B24 B33 B36 C1 (left kick panel) C5 (center of dash) Cig fuse 15a Computer data lines system Cruise control, anti-lock brakes & cooling fans systems Def fuse 30a Def relay Door fuse 25a E17 Ecu ign 1 fuse 10a Ecu ign 2 fuse 10a Exterior lights system Exterior lights, cruise control & starting/charging systems Flasher relay Fr fog fuse 15a From engine room j/b (diagram 1 of 2) From engine room r/b (diagram 1 of 2) Htr ig fuse 10a Htr relay Ig1 Ig1 relay Ig2 Ignition switch Instrument panel j/b (behind left side of dash) Interior lights system Lock Main body ecu Noise filter Obd fuse 7.5a Off Panel fuse 7.5a Power outlet socket (in center console) Power tops system Pwr relay Q10 R/b 5 (center of dash) Rr wiper fuse 15a Shift interlock system Sound & mirror systems St1 St2 Start Starting/ charging system Stop fuse 10a Sunroof fuse 20a T lp relay Tail fuse 10a Transmissions, electronic power steering, anti-lock brakes, warning & shift interlock systems Trly Warning system Washer fuse 15a Wiper fuse 25a Wiper/ washer system
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Power Door Locks Wiring Diagram (1 of 2) for Scion xB 2008: 79 (in rear tailgate) back door lock assembly (left kick panel) c1 A1 (behind left headlight) A21 Acc Acc fuse 7.5a Act+ Act- Actd Altb B12 B30 Bcty Becu Buzzer Bzr C4 (right side of dash) C46 C47 Canh Canl Dcty Detection unlock Door fuse 25a E17 E19 E20 E23 Ecu-b fuse 10a Ecu-ig 1 fuse 10a Engine room r/b (on left side of engine compt) Exterior lights system Gnd1 H13 H14 H17 H18 H2 (at left "b" pillar) Haz Headlights system Horn Horns system Hot at all times Hot in on or acc Hot in on or start Hrly I2 (right rear of chassis) Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) J/c c46 & c47 (right side of dash) Ksw L1 (right rear of chassis) Lcty Left front door lock control switch Left rear door courtesy switch (on left "c" pillar) Left rear door lock motor (left rear door) Lock Lsr Lssr Lswd Lswp Main body ecu (left side of dash) Pcty Pnk Power window regulator master switch Prg R11 R12 Rcty Rda Red Right front door lock motor (right front door) Right front door lock switch Right rear door lock motor (right rear door) Ul1 Ul3 Unlk Unlock detection Wireless door lock buzzer (near base of "a" pillar) Power Door Locks Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Power Door Locks Wiring Diagram (2 of 2) for Scion xB 2008: 36 5v+b A10 B13 C1 (left kick panel) Can controller Can i/f Canh Canl Combination meter Cpu Detection unlock Dome fuse 10a Door control receiver (near right "c" pillar) Door lock motor (left front door) E17 Engine room r/b (on left side of engine compt) Gnd Hot at all times I/f I1 (right rear of chassis) Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Left front Left front door courtesy switch (on left "b" pillar) Lssr Pnk Prg Q10 Rda Red Right front door courtesy switch (on right "b" pillar) Right rear door courtesy switch (on right "c" pillar) Skid control ecu (w/ actuator) (left side of engine compt) Sp1 Unlk Unlock warning switch
POWER MIRRORS Power Mirrors Wiring Diagram for Scion xB 2008 List of elements for Power Mirrors Wiring Diagram for Scion xB 2008: 21 Acc fuse 7.5a C1 (left kick panel) C46 C47 Down E17 E18 Hot in acc or on Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) J/c c46 & c47 (right side of dash) Left Left outer rear view mirror Left/ up Operation switch Outer mirror switch Pnk Right Right outer rear view mirror Right/ down Select switch
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Scion xB 2008 List of elements for Power Top/Sunroof Wiring Diagram for Scion xB 2008: 22 (left kick panel) c1 A21 C1 (left kick panel) Dcty Down Dwn Ecu-ig 2 fuse 10a Gnd Hot at all times Hot in on or start Instrument panel j/b (behind left side of dash) J/b 3 (left side of dash) J/b 4 (center of dash) Left front door courtesy switch (on left "b" pillar) Lin2 Main body ecu Map light assembly Mpx1 Pnk Sliding roof control ecu Sliding roof control switch Sunroof fuse 20a
POWER WINDOWS Power Windows Wiring Diagram for Scion xB 2008 List of elements for Power Windows Wiring Diagram for Scion xB 2008: 32 A19 Alt fuse 120a B30 Becu C1 (left kick panel) Door locks system Down E17 Ecu-b fuse 10a Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Gnd1 H11 Hot at all times Instrument panel j/b (behind left side of dash) J/c c46 (right side of dash) Left front power window motor (in left front door) Left rear power window motor (in left rear door) Left rear power window switch Main body ecu (left side of dash) Pnk Power fuse 30a Power window regulator master switch Pwr relay Pws Red Right front power window motor (in right front door) Right front power window switch Right rear power window motor (in right rear door) Right rear power window switch Rl door fuse 20a Rr door fuse 20a
RADIO Radio Wiring Diagram for Scion xB 2008 List of elements for Radio Wiring Diagram for Scion xB 2008: 54 Acc Acc fuse 7.5a Ali Alo Ant Antenna Ari Aro Asgn Auxg Auxi Auxo C27 C3 (center of dash) Cruise control system Engine room r/b (on left side of engine compartment) Fl+ Fl- Fr+ Fr- Hot at all times Hot in on or acc Ill+ Ill- Instrument panel j/b (behind left side of dash) Interior lights system Left front door speaker Left rear speaker Left tweeter Mode Nca Pnk Rad 1 fuse 15a Radio antenna Radio receiver assembly Red Right front door speaker Right rear speaker Right tweeter Rl+ Rl- Rr+ Rr- Seek+ Seek- Spd Spiral cable (in steering column) Steering pad switch Stereo jack adapter assembly (ipod) (in center console) Sw1 Sw2 Swg Volume+ Volume-
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Scion xB 2008 List of elements for Shift Interlock Wiring Diagram for Scion xB 2008: 25 A31 A32 Acc Acc fuse 7.5a B18 C1 (left kick panel) C2 (left side of dash) E17 Ecu-ig 1 fuse 10a Hot at all times Hot in on or acc Hot in on or start Instrument panel j/b (behind left side of dash) J/b 3 (left side of dash) J/b 4 (center of dash) J/c a31 & a32 (left side of dash) Key interlock solenoid (left side of dash) Kls+ Shift lock control ecu (center of dash) Shift lock solenoid Sls+ Sls- Stop fuse 10a Stop light switch (on bracket, above brake pedal) Stp
STARTING/CHARGING Charging Wiring Diagram for Scion xB 2008 List of elements for Charging Wiring Diagram for Scion xB 2008: 24 (left side of engine compt) engine control module Alt Alt fuse 120a Alt-s fuse 7.5a B19 B33 Battery C10 C36 C37 Charge ind Combination meter Ecu-ig 2 fuse 10a Engine room j/b (left side of engine compt) Engine room j/b (on left side of engine compt) Engine room r/b (left side of engine compt) Generator Hot in on or start Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Meter fuse 7.5a N11 Pnk Starting circuit Starting Wiring Diagram for Scion xB 2008 List of elements for Starting Wiring Diagram for Scion xB 2008: 22 A/t Acc Am1 fuse 7.5a Am2 fuse 30a Battery C1 (left kick panel) Clutch start switch (on clutch pedal assembly) E17 Engine room r/b (on left side of engine compt) Hot at all times Ignition switch Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) J/c a32 (left side of dash) Lock M/t On off Park/neutral position switch (on left rear of transmission) R/b 5 (center of dash) St relay Start Starter
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Scion xB 2008: 74 +sl +sr -sl -sr Bbd+ Bbd- Bbl+ Bbl- Bbr+ Bbr- Bcl+ Bcl- Bcr+ Bcr- Buckle switch C17 C30 Can controller Can i/f Canh Canl Center air bag assembly sensor Combination meter Computer data lines system Cpu D2+ D2- Dbe+ Dbe- Dsp+ Dsp- Fsr+ Fsr- H12 Icd+ Icd- Icr+ Icr- Ig2 Lbe+ Lbe- Led driver Left curtain shield air bag squib circuit Left front air bag sensor Left front pretensioner Left front seat inner belt switch Left front side air bag sensor Left rear side air bag sensor Left side air bag squib Lsp+ Lsp- P-ab P2+ P2- Paon Pd+ Pd- Pnk Pr+ Pr- Red Right curtain shield air bag squib Right front air bag sensor Right front pretensioner Right front side air bag sensor Right rear side air bag sensor Right side air bag squib Seat position air bag sensor Sfd+ Sfd- Sfr+ Sfr- Sil Srs ind Supplemental Restraints Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Scion xB 2008: 49 Air bag cutoff indicator Air bag squib (front passenger's air bag assembly) Air bag squib (steering wheel pad) Bgnd Bsw Buckle switch C10 C10 d+ C15 D2+ D2- Data link connector 3 Dia E14 E16 E17 E30 E31 Fsr+ Fsr- Gbt Gnd Gps Gsp Hot in on or start Ign fuse 7.5a Instrument panel j/b J/b #3 J/b #4 M10 Meter fuse 7.5a N11 Nca O10 Occupant classification ecu Occupant classification sensor P-ab Paon Pnk Q11 Red Right front seat inner belt switch Seat belt tension sensor Seat position sensor Sil Spiral cable Telltale lamp assembly Vbt Vps
TRANSMISSION Transmission Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Transmission Wiring Diagram (1 of 2) for Scion xB 2008: 75 (behind left headlight) a1 +b2 A31 A32 A36 B18 B19 B30 B33 Batt C1 (left kick panel) Computer data lines system Dsl E17 E2g Ecu- ig 2 fuse 10a Ecu-b fuse 10a Ecu-ig 1 fuse 10a Efi 1 fuse 10a Efi main fuse 20a Efi main relay Electronically controlled transmission solenoid (on left side of transmission) Engine control module (left side of engine compt) Engine coolant temperature sensor (on left front of engine) Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Epa Epa2 Eta Etha Etho Ethw Ge01 H12 Hot at all times Hot in on or start Ign fuse 7.5a Instrument panel j/b (behind left side of dash) J/c a31 & a32 (left side of dash) J/c a31 (left side of dash) Meter fuse 7.5a Mrel Nc+ Nc- Nt+ Nt- Pnk Red Sftd Sftu Sl1+ Sl1- Sl2+ Sl2- Slt+ Slt- Spd St1- Stop fuse 10a Stop light switch (on bracket, above brake pedal) Stp Tach Tha Tho Tho1 Throttle position sensor (on throttle body assembly) Thw Vcp2 Vcpa Vcta Vpa Vpa2 Vta Vta1 Vta2 Transmission Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Transmission Wiring Diagram (2 of 2) for Scion xB 2008: 43 5v ic 5v+b A/t Accelerator position sensor (left side of dash) C10 C2 (left side of dash) C37 Can controller Can i/f Canh Canl Cl- Combination meter Computer data lines system Cpu Cruise control clutch switch Display E2g Epa Epa2 I/f Interior lights system J/b 3 (left side of dash) J/b 4 (center of dash) Led driver M/t Mass air flow meter (on left side of engine compt) N10 N11 Park/neutral position switch (on left rear of transmission) Pnk Red S11 Skid control ecu (w/ actuator) (left side of engine compt) Sp1 Tha Transmission control switch Transmission revolution sensor (electronically controlled transmission) (on transmission assembly) Transmission revolution sensor (turbine) (on transmission assembly) Vcp2 Vcpa Vpa Vpa2
TRUNK, TAILGATE, FUEL DOOR Back Door Opener Wiring Diagram for Scion xB 2008 List of elements for Back Door Opener Wiring Diagram for Scion xB 2008: 34 (left front door) (left kick panel) c1 Acc Acc fuse 7.5a Altb B30 Back door lock assembly (in rear tailgate) Back door opener switch Bcty Bdsu Becu C1 (left kick panel) Canh Canl Computer data lines system Courtesy Door fuse 25a E17 Ecu-b fuse 10a Ecu-ig 1 fuse 10a Engine room r/b (on left side of engine compt) Gnd1 Hot at all times Hot in on or acc Hot in on or start Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) J/c h21 (at left "c" pillar) L1 (right rear of chassis) Left front door lock motor Lswd Main body ecu (left side of dash) Red Tr+
WARNING SYSTEMS Key Reminder & Seat Belt Warning Wiring Diagram (1 of 2) for Scion xB 2008 List of elements for Key Reminder & Seat Belt Warning Wiring Diagram (1 of 2) for Scion xB 2008: 50 (center of dash) j/b 4 (left kick panel) c1 A21 Acc Acc fuse 7.5a Altb B30 Becu Bgnd Bsw Buckle switch C1 (left kick panel) C17 Canh Canl Center airbag ecu (center of dash) Computer data lines system Dcty Door fuse 25a E17 E23 Ecu-b fuse 10a Ecu-ig 1 fuse 10a Ecu-ig 2 fuse 10a Engine room r/b (on left side of engine compt) Fsr+ Fsr- Gnd1 Gps H12 Head Headlight dimmer switch assembly Hot at all times Hot in on or acc Hot in on or start Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Ksw Lbe+ Lbe- Left front seat inner belt switch (in base of front driver's seat) Main body ecu (left side of dash) Occupant classification ecu (under front passenger's seat) Occupant classification sensor (base of front passenger's seat) Off Red Right front seat inner belt switch (in base of front passenger's seat) Tail Unlock warning switch Vps Key Reminder & Seat Belt Warning Wiring Diagram (2 of 2) for Scion xB 2008 List of elements for Key Reminder & Seat Belt Warning Wiring Diagram (2 of 2) for Scion xB 2008: 39 (center of dash) j/b 4 5v ic 5v+b Alt fuse 120a B30 Buzzer C10 C2 (left side of dash) C36 C37 Can i/f Combination meter Computer data lines system Controller Cpu Drivers Ecu-b fuse 10a Engine room j/b (left side of engine compt) Engine room r/b (on left side of engine compt) Front passenger seat belt warning light H12 Hot at all times Hot in on or start I/f Instrument panel j/b (behind left side of dash) J/b 4 (center of dash) Led driver Left front door courtesy switch (on left "b" pillar) M12 Meter fuse 7.5a N10 N11 N12 Panel fuse 7.5a Pnk S11 Seat belt ind T-lp relay Telltale lamp assembly Tire Pressure Monitoring Wiring Diagram for Scion xB 2008 List of elements for Tire Pressure Monitoring Wiring Diagram for Scion xB 2008: 51 +5v 5v ic A36 B2 (left rear of engine) B25 B33 C1 (left kick panel) C10 C2 (left side of dash) C37 Canh Canl Clsw Combination meter Computer data lines system Cpu Crankshaft position sensor (on lower front of engine) Dlc 3 (left side of dash) E17 E18 Ecu-ig 1 fuse 10a Engine control module (left side of engine compt) Gnd Gnd2 H11 Hot in on or start I/f Ind Instrument panel j/b (behind left side of dash) Int J/b 4 (center of dash) Led driver Meter fuse 7.5a N11 Nca Ne+ Ne- Pnk Q11 Rda Red Rf5v Sil Skid control ecu (w/ actuator) (left side of engine compt) Sp1 Spd Tach Tire pressure ind Tire pressure warning antenna & receiver (rear of vehicle roof) Tire pressure warning ecu (near right "c" pillar) Tire pressure warning reset switch
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Scion xB 2008 List of elements for Front Wiper/Washer Wiring Diagram for Scion xB 2008: 27 A3 (behind right headlight) A34 A35 B36 C1 (left kick panel) C12 C13 E17 Front washer motor (behind right front headlight assembly) Front washer switch Front wiper motor (left rear of engine compt) Front wiper switch High Hot in on or start Instrument panel j/b (behind left side of dash) Int J/c a34 & a35 Low Mist Off Off int Red Solid state Washer fuse 15a Windshield wiper switch Wiper fuse 25a Wiper relay Rear Wiper/Washer Wiring Diagram for Scion xB 2008 List of elements for Rear Wiper/Washer Wiring Diagram for Scion xB 2008: 20 A25 A34 A35 C1 (left kick panel) C12 E17 Hot in on or start Instrument panel j/b (behind left side of dash) J/c a34 & a35 L1 (right rear of chassis) Off On+wash Pnk Rear washer motor (behind right headlight assembly) Rear wiper & washer switch Rear wiper motor (center of back door) Rr wiper fuse 15a Wash Washer fuse 15a Windshield wiper switch
