TRANSMISSION – Toyota Tacoma PreRunner 2003 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma PreRunner 2003

List of elements for 4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma PreRunner 2003:

• (dash harn, center of dash)
• (dash harn, right side of dash)
• 2-4
• 2-4 select motor (on transmission)
• 2-4 select switch
• 4wd
• 4wd ecu (below center of dash)
• 4wd fuse 20a
• 4wd ind
• A/t indicator switch
• A/t p ind
• Abs actuator w/ecu (right rear of engine compt)
• Add
• Add actuator (near right rear of engine)
• Add detection switch
• Add limit switch
• B17
• B19
• C10
• C13
• Combination meter
• D17
• D18
• D19
• D20
• Detection switch (transfer 4wd position) (on transmission)
• Detection switch (transfer l4 position) (on trans- mission)
• Detection switch (transfer neutral position) (on trans)
• Diode (a/t) (behind top left side of dash)
• Dl1
• Dl2
• Dm1
• Dm2
• E12
• E13
• Engine control module
• Exi
• Exi2
• F12
• F16
• G17
• G19
• G20
• Gauge fuse 10a
• Gnd
• H20
• H22
• Hot in on or start
• I12
• I13
• I14
• I9 (w/drl) i14 (w/o drl)
• Id (left kick panel)
• Ie (right side of dash)
• Ig (left side of dash)
• Ind
• J/b 1 (behind dash, left of steering column)
• J/b 3 (center) (behind center of dash)
• J/b 3 (left) (behind dash, above steering column)
• J/c 13 (above glove box)
• Park/neutral position switch (on trans)
• Pnk
• Rear differential lock ecu (on upper left kick panel)
• Red
• Spd
• Speedometer
• Tfn
• Tl1
• Tl2
• Tm1
• Tm2
• Vehicle speed sensor (on transmission)
• W/ tach
• W/o tach

4WD Wiring Diagram, without 2-4 Select Switch for Toyota Tacoma PreRunner 2003

List of elements for 4WD Wiring Diagram, without 2-4 Select Switch for Toyota Tacoma PreRunner 2003:

• (2.7l)
• (3.4l)
• (dash harn, right side of dash) i12
• (dash harn, right side of dash) i14
• (on upper left kick panel) rear differential lock ecu
• (right rear of eng compt) abs actuator w/ecu
• 2wd
• 4wd
• 4wd fuse 20a
• 4wd ind
• A/t indicator switch
• A/t p ind
• Add actuator (near right rear of engine)
• Add detection switch
• Add limit switch
• Add motor
• C10
• C13
• Combination meter
• D18
• D19
• D20
• Detection switch (transfer 4wd position) (on transmission)
• Detection switch (transfer l4 position) (on transmission)
• Detection switch (transfer neutral position) (on transmission)
• Diode (a/t) (behind top left side of dash)
• E11
• E12
• Engine control module (behind right side of dash)
• Exi
• Exi2
• Gauge fuse 10a
• Gnd
• H20
• H22
• Hot in on or start
• I13
• I14
• I9 (dash harn, center of dash)
• Ie (right side of dash)
• J/b 1 (behind dash, left of steering column)
• J/b 3 (center) (behind center of dash)
• J/b 3 (left) (behind dash, above steering column)
• J/c 13 (above glove box)
• Park/neutral position switch (on transmission)
• Rel1
• Rel2
• Tfn
• Transmission control relay (on upper right kick panel)

Rear Differential Lock Wiring Diagram for Toyota Tacoma PreRunner 2003

List of elements for Rear Differential Lock Wiring Diagram for Toyota Tacoma PreRunner 2003:

• (dash harn, right side of dash) i12
• (w/ 2-4 select switch)
• (w/o 2-4 select switch)
• 2.7l
• 3.4l
• 4wd
• 4wd ecu (w/ 2-4 select switch) (below center of dash)
• 4wd fuse 20a
• A/t
• A/t w/ abs
• A22
• Abs actuator with ecu (w/ abs) (right rear of engine compt)
• C10
• C13
• Combination meter
• D11
• D16
• D19
• Detection switch (transfer l4 position) (on transmission)
• Engine control module (behind right side of dash)
• Exi
• Exi2
• F12
• F16
• Free
• G17
• G18
• Gauge fuse 10a
• Gnd
• H21
• H22
• Hot in on or start
• I12
• Ie (right side of dash)
• Ig (left side of dash)
• J/b 1 (behind left side of dash)
• J/b 3 (center) (behind center of dash)
• J/b 3 (left) (above steering column)
• J/c 13 (above glove box)
• Limit switch
• Lock
• M/t
• M/t w/ abs
• Pnk
• Rear differential lock switch
• Rear differential lock detection switch
• Rear differential lock ecu (upper left kick panel)
• Rear differential lock indicator
• Rear differential lock motor
• Rel1
• Rel2
• Rlp
• Spd
• Speed

2.4L

2.4L, A/T Wiring Diagram for Toyota Tacoma PreRunner 2003

List of elements for 2.4L, A/T Wiring Diagram for Toyota Tacoma PreRunner 2003:

• Batt
• Cruise control system
• D13
• D17
• D18
• D19
• D20
• Data link connector 3 (below left center of dash)
• Ea (left front fender)
• Ecu-ig fuse 15a
• Ef (ignition coil bracket)
• Efi fuse 20a
• Efi relay (r/b 2)
• Engine control module (behind right side of dash)
• Engine controls
• Engine coolant temperature sensor (on rear of eng)
• F11
• G14
• G17
• G22
• Gauge fuse 10a
• Hot at all times
• Hot in on or start
• I12
• I13 (dash harn, right side of dash)
• Idlo
• Ie (right side of dash)
• Ign fuse 7.5a
• Instrument cluster system
• J/b 1 (behind dash, left side of steering column)
• J/b 3 (left) (behind dash, above steering column)
• J/c 11 (above glove box)
• J/c 13 (above glove box)
• J/c 9, j/c 10 (left side of engine compt)
• J10
• Nsw
• O/d ecu (below center of dash)
• O/d main switch
• O/d solenoid (on transmission)
• Od off
• Od1
• Odlp
• Odms
• Park/neutral position switch (on transmission)
• R/b 2 (left side of engine compt)
• Sol
• Sp1
• Speedo
• Sta
• Starting system
• Stop fuse 10a
• Stoplight switch (on bracket, above brake pedal)
• Stp
• Throttle position sensor (on throttle body)
• Thw
• Vta

2.7L

2.7L, A/T Wiring Diagram for Toyota Tacoma PreRunner 2003

List of elements for 2.7L, A/T Wiring Diagram for Toyota Tacoma PreRunner 2003:

• (dash harn, right side of dash) i13
• (r/b 2)
• (right side of dash) ie
• A/t oil temp sensor (on transmission)
• A/t p ind
• Batt
• Cruise control system
• D13
• D18
• D19
• Data link connector 3 (below left center of dash)
• Ea (left front fender)
• Ect pwr
• Ef (ignition coil bracket)
• Efi fuse 20a
• Efi relay
• Electronic controlled transmission solenoids (on transmission)
• Electronically controlled transmission pattern select switch
• Engine control module (behind right side of dash)
• Engine controls
• Engine coolant temperature sensor (rear of eng)
• F11
• G22
• Gauge fuse 10a
• Hot at all times
• Hot in on or start
• I12
• I13
• I13 (dash harn, right side of dash)
• Idl0
• Ign fuse 7.5a
• J/b 1 (behind dash, left of steering column)
• J/b 3 (center) (behind center of dash)
• J/b 3 (left) (behind dash, above steering column)
• J/c 11 (above glove box)
• J/c 9, j/c 10 (left side of engine compt)
• J10
• No. 1
• No. 2
• No. 3
• Nsw
• O/d main switch
• Od off
• Od1
• Odlp
• Odms
• Oil temp
• Oil-w
• P ind
• Park/neutral position switch (on transmission)
• Pnk
• Pwr
• R/b 2 (left side of engine compt)
• Red
• Sp1
• Sp2+
• Sp2-
• Speedo
• Sta
• Starting system
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Tfn
• Tho
• Throttle position sensor (on throttle body)
• Thw
• Vehicle speed sensor (for ect) (on transmission)
• Vta

3.4L

3.4L, A/T Wiring Diagram for Toyota Tacoma PreRunner 2003

List of elements for 3.4L, A/T Wiring Diagram for Toyota Tacoma PreRunner 2003:

• (dash harn, right side of dash)
• (left side of engine compt) j/c 9, j/c 10
• (near the throttle body)
• (right front fender) ea
• +bm
• A/t oil temperature sensor (on transmission)
• A/t p ind
• Batt (b+)
• D13
• D18
• D19
• Data link connector 3 (below left center of dash)
• E1 (grd)
• E10
• Ect pwr
• Ects fuse 15a
• Efi fuse 20a
• Efi relay (on r/b 2)
• Electronic controlled transmission solenoids (on transmission)
• Electronically controlled transmission pattern select switch
• Engine control module (behind right side of dash)
• Engine controls system
• Engine coolant temperature sensor (left front of engine)
• F11
• G17
• G22
• Gauge fuse 10a
• Hot at all times
• Hot in run or start
• I12
• I13
• Ig (left side of dash)
• Ign fuse 7.5a
• Igsw
• J/b 1 (behind dash, left of steering column)
• J/b 3 (behind dash, above steering column)
• J/c 11 (above glove box)
• J10
• Mrel
• Nsw
• O/d main switch
• Od off
• Od2
• Odms
• Oilw
• Park/neutral position switch (on transmission)
• Pnk
• Pwr
• R/b 2 (left side of engine compt)
• Red
• Slt
• Slt+
• Slt-
• Sp1
• Sp2+
• Sp2-
• Speedo
• Sta
• Starting system
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Stp
• Temp a/t oil
• Tfn
• Thoc
• Throttle position sensor (on throttle body)
• Thw
• Vehicle speed sensor (for ect) (on transmission)
• Vta
• Vta2