TRANSMISSION – Toyota Tacoma 2001 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

2.4L

2.4L, A/T Wiring Diagram for Toyota Tacoma 2001

List of elements for 2.4L, A/T Wiring Diagram for Toyota Tacoma 2001:

• Batt
• Cruise control system
• D13
• D17
• D18
• D19
• D20
• Data link connector 3 (below left center of dash)
• Diode (behind top left side of dash)
• Ea (left front fender)
• Ecu-ig fuse 7.5a
• 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
• I11 (cowl harn, lower right center of dash)
• I12
• I13 (eng harness, behind right side of dash)
• Idlo
• Ie (right end 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 13 (above glove box)
• J/c 9, 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
• P ind
• Park/neutral position switch (on transmission)
• Pnk
• R/b 2 (left side of engine compt)
• Red
• Sol
• Sp1
• Speedo
• Sta
• Starting system
• Stop fuse 10a
• Stoplight switch (on bracket, above brake pedal)
• Stp
• Tfn
• Throttle position sensor (on throttle body)
• Thw
• Vta

4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma 2001

List of elements for 4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma 2001:

• (left end of dash)
• (on upper left kick panel) rear differential lock ecu
• (right rear of eng compt) abs actuator w/ecu
• 2-4
• 2-4 select motor (on transfer case)
• 2-4 select switch
• 4wd
• 4wd ecu (below center of dash)
• 4wd fuse 20a
• 4wd ind
• A/t indicator switch
• A/t p ind
• 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 transfer case)
• Detection switch (transfer l4 position) (on transfer case)
• Detection switch (transfer neutral position) (on transfer case)
• Diode (a/t) (behind top left side of dash)
• Dl1
• Dl2
• Dm1
• Dm2
• Engine control module (behind right side of dash)
• Ex12
• 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 end 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 transmission)
• Pnk
• 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 2001

List of elements for 4WD Wiring Diagram, without 2-4 Select Switch for Toyota Tacoma 2001:

• (2.7l)
• (3.4l)
• (dash harn, behind right side of dash)
• (on upper left kick panel) rear differential lock ecu
• (right rear of eng compt) abs actuator w/ecu
• 2.7l
• 2wd
• 3.4l
• 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
• 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)
• Engine control module (behind right side of dash)
• Ex12
• F12
• F16
• Gauge fuse 10a
• Gnd
• H20
• H22
• Hot in on or start
• I12
• I13
• I14
• Ie (left end of dash)
• Ig (right end of dash)
• J/b 1 (behind dash, left of steering column)
• J/b 3 (center) (behind center of dash)
• J/b 3 (left) (above steering column)
• J/b 3 (left) (behind dash, above steering column)
• J/c 13 (above glove box)
• Park/neutral position switch (on transmission)
• Rel1
• Rel2
• S10
• S11
• Short connector (add)
• Tfn
• Transmsission control relay (on upper right kick panel)
• W/ abs
• W/ add
• W/o abs
• W/o add

Rear Differential Lock Wiring Diagram for Toyota Tacoma 2001

List of elements for Rear Differential Lock Wiring Diagram for Toyota Tacoma 2001:

• (ex reg cab) b4 (reg cab) b5
• 2.7l
• 3.4l
• 4wd
• 4wd ecu (w/ 2-4 select switch) (below center of dash)
• 4wd fuse 20a
• A/t w/ abs
• A22
• Abs actuator with ecu (w/ abs) (right rear of engine compt)
• B12
• 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
• I12 (dash harn, behind right side of dash)
• Ie (right end of dash)
• Ig (left end 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 w/ abs
• 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
• W/ abs or w/ 2-4 select switch
• W/o abs and w/o 2-4 select switch

2.7L

2.7L, A/T Wiring Diagram for Toyota Tacoma 2001

List of elements for 2.7L, A/T Wiring Diagram for Toyota Tacoma 2001:

• (r/b 2)
• (right end 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 (engine harness, behind 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, 10 (left side of engine compt)
• J10
• 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

4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma 2001

List of elements for 4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma 2001:

• (left end of dash)
• (on upper left kick panel) rear differential lock ecu
• (right rear of eng compt) abs actuator w/ecu
• 2-4
• 2-4 select motor (on transfer case)
• 2-4 select switch
• 4wd
• 4wd ecu (below center of dash)
• 4wd fuse 20a
• 4wd ind
• A/t indicator switch
• A/t p ind
• 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 transfer case)
• Detection switch (transfer l4 position) (on transfer case)
• Detection switch (transfer neutral position) (on transfer case)
• Diode (a/t) (behind top left side of dash)
• Dl1
• Dl2
• Dm1
• Dm2
• Engine control module (behind right side of dash)
• Ex12
• 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 end 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 transmission)
• Pnk
• 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 2001

List of elements for 4WD Wiring Diagram, without 2-4 Select Switch for Toyota Tacoma 2001:

• (2.7l)
• (3.4l)
• (dash harn, behind right side of dash)
• (on upper left kick panel) rear differential lock ecu
• (right rear of eng compt) abs actuator w/ecu
• 2.7l
• 2wd
• 3.4l
• 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
• 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)
• Engine control module (behind right side of dash)
• Ex12
• F12
• F16
• Gauge fuse 10a
• Gnd
• H20
• H22
• Hot in on or start
• I12
• I13
• I14
• Ie (left end of dash)
• Ig (right end of dash)
• J/b 1 (behind dash, left of steering column)
• J/b 3 (center) (behind center of dash)
• J/b 3 (left) (above steering column)
• J/b 3 (left) (behind dash, above steering column)
• J/c 13 (above glove box)
• Park/neutral position switch (on transmission)
• Rel1
• Rel2
• S10
• S11
• Short connector (add)
• Tfn
• Transmsission control relay (on upper right kick panel)
• W/ abs
• W/ add
• W/o abs
• W/o add

Rear Differential Lock Wiring Diagram for Toyota Tacoma 2001

List of elements for Rear Differential Lock Wiring Diagram for Toyota Tacoma 2001:

• (ex reg cab) b4 (reg cab) b5
• 2.7l
• 3.4l
• 4wd
• 4wd ecu (w/ 2-4 select switch) (below center of dash)
• 4wd fuse 20a
• A/t w/ abs
• A22
• Abs actuator with ecu (w/ abs) (right rear of engine compt)
• B12
• 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
• I12 (dash harn, behind right side of dash)
• Ie (right end of dash)
• Ig (left end 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 w/ abs
• 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
• W/ abs or w/ 2-4 select switch
• W/o abs and w/o 2-4 select switch

3.4L

3.4L, A/T Wiring Diagram for Toyota Tacoma 2001

List of elements for 3.4L, A/T Wiring Diagram for Toyota Tacoma 2001:

• (engine harness, behind right side of dash)
• (left side of engine compt) data link connector 1
• A/t oil temp
• A/t oil temperature sensor (on transmission)
• A/t p ind
• Batt (b+)
• Cruise control system
• D13
• D18
• D19
• E1 (grd)
• Ea (left front fender)
• Eb (near the throttle body)
• Ect pwr
• 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
• Engine coolant temperature sensor (left front of eng)
• F11
• G17
• G22
• Gauge fuse 10a
• Hot at all times
• Hot in run or start
• I12
• I13
• I13 (engine harness, behind right side of dash)
• Idl0
• Ig (left end 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 9, 10 (left side of engine compt)
• J10
• Junction connector 11 (above glove box)
• Mrel
• Nsw
• O/d main switch
• Od off
• Od1
• Od2
• Odms
• Oil
• Oilw
• 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)
• Stp
• Te1
• Tfn
• Throttle position sensor (on throttle body)
• Thw
• Vcc
• Vehicle speed sensor (for ect) (on transmission)
• Vta

4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma 2001

List of elements for 4WD Wiring Diagram, with 2-4 Select Switch for Toyota Tacoma 2001:

• (left end of dash)
• (on upper left kick panel) rear differential lock ecu
• (right rear of eng compt) abs actuator w/ecu
• 2-4
• 2-4 select motor (on transfer case)
• 2-4 select switch
• 4wd
• 4wd ecu (below center of dash)
• 4wd fuse 20a
• 4wd ind
• A/t indicator switch
• A/t p ind
• 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 transfer case)
• Detection switch (transfer l4 position) (on transfer case)
• Detection switch (transfer neutral position) (on transfer case)
• Diode (a/t) (behind top left side of dash)
• Dl1
• Dl2
• Dm1
• Dm2
• Engine control module (behind right side of dash)
• Ex12
• 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 end 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 transmission)
• Pnk
• 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 2001

List of elements for 4WD Wiring Diagram, without 2-4 Select Switch for Toyota Tacoma 2001:

• (2.7l)
• (3.4l)
• (dash harn, behind right side of dash)
• (on upper left kick panel) rear differential lock ecu
• (right rear of eng compt) abs actuator w/ecu
• 2.7l
• 2wd
• 3.4l
• 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
• 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)
• Engine control module (behind right side of dash)
• Ex12
• F12
• F16
• Gauge fuse 10a
• Gnd
• H20
• H22
• Hot in on or start
• I12
• I13
• I14
• Ie (left end of dash)
• Ig (right end of dash)
• J/b 1 (behind dash, left of steering column)
• J/b 3 (center) (behind center of dash)
• J/b 3 (left) (above steering column)
• J/b 3 (left) (behind dash, above steering column)
• J/c 13 (above glove box)
• Park/neutral position switch (on transmission)
• Rel1
• Rel2
• S10
• S11
• Short connector (add)
• Tfn
• Transmsission control relay (on upper right kick panel)
• W/ abs
• W/ add
• W/o abs
• W/o add

Rear Differential Lock Wiring Diagram for Toyota Tacoma 2001

List of elements for Rear Differential Lock Wiring Diagram for Toyota Tacoma 2001:

• (ex reg cab) b4 (reg cab) b5
• 2.7l
• 3.4l
• 4wd
• 4wd ecu (w/ 2-4 select switch) (below center of dash)
• 4wd fuse 20a
• A/t w/ abs
• A22
• Abs actuator with ecu (w/ abs) (right rear of engine compt)
• B12
• 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
• I12 (dash harn, behind right side of dash)
• Ie (right end of dash)
• Ig (left end 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 w/ abs
• 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
• W/ abs or w/ 2-4 select switch
• W/o abs and w/o 2-4 select switch