TRANSMISSION – Chevrolet Tahoe 2008 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

Transfer Case Wiring Diagram for Chevrolet Tahoe 2008

List of elements for Transfer Case Wiring Diagram for Chevrolet Tahoe 2008:

• (behind upper left end of dash) g201
• (below left end of dash)
• (in instrument panel harness, at x103 breakout)
• (in instrument panel harness, in transfer case shift control module connector breakout) j207
• 2 hi ind ctrl
• 2-hi ind
• 2wd
• 4 hi
• 4 lo
• 4-hi ind
• 4-lo ind
• 4h ind ctrl
• 4l ind ctrl
• 4wd indicator lamp
• 5 vol ref
• 5v ref
• 8 vol ref
• Auto 4wd ind
• Aux hvac-ign fuse 48 10a
• Awd
• Awd ind ctrl
• Axle actuator ctrl
• Axle sw sig
• Body control module (bcm) (behind lower left side of dash)
• Brake control
• Cadillac
• Computer data lines system
• Encoder
• Encoder sig
• Front axle actuator (0n front axle housing)
• Front hi sig
• Front lo sig
• Front propshaft speed sensor (on left side of transfer case)
• G102 (lower left front of engine)
• G200 (right front corner of hvac case)
• Gmc/ chevrolet
• Gnd
• Ground distribution system
• Hot at all times
• Hot w/ run/crnk relay energized
• Ign vol
• Ign volt
• Illumination
• Instrument panel cluster (ipc)
• Interior lights system
• J105
• J113
• J127 (except 6.2l)
• J200
• J219 (w/ heated steering wheel)
• Left i/p junction block
• Lock sol ctrl
• Logic
• Low ref
• Misc ign fuse 43 10a
• Motor ctrl a
• Motor ctrl b
• Nca
• Neut
• Neutral ind
• Neutral ind ctrl
• Pnk
• Power distribution system
• Rear hi sig
• Rear lo sig
• Rear propshaft speed sensor (on transfer case extension housing)
• Sens sig
• Serial data bus +
• Serial data bus -
• Shift motor
• Sw sig
• Tan
• Trans ign1 fuse 19 15a
• Transfer case 2/4 wheel drive actuator position sensor
• Transfer case encoder motor (left side of transfer case)
• Transfer case shift control module (below left end of dash)
• Transfer case shift control switch
• Trec fuse 67 30a
• Underhood fuse block (left side of engine compt)
• Wake up sig

4.8L VIN C

4.8L VIN C, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008

List of elements for 4.8L VIN C, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008:

• 1-2 shift sol
• 2-3 shift sol
• 3-2 shift sol
• 4wd
• Brake sw sig
• Computer data lines system
• Except 4wd
• Exterior lights system
• G103 (front of right cylinder head)
• Gnd
• Hot at all times
• Hot w/ run/crank relay energized
• Ign vol
• Iss sig
• J106
• J127
• Left i/p junction block (below x1 left side of dash)
• Low ref
• Misc ign fuse 43 10a
• P/n
• Park/neutral position (pnp) switch (left side of automatic transmission)
• Pc sol vlv hi ctrl
• Pc sol vlv low ctrl
• Pnk
• Power distribution system
• Pressure sw sig a
• Pressure sw sig b
• Pressure sw sig c
• Replicated tos sig
• Serial data bus +
• Serial data bus -
• Stop lamp switch (top of brake pedal bracket)
• Sw sig a
• Sw sig b
• Sw sig c
• Sw sig p
• Tan
• Tcc pwm sol
• Tcc sol vlv ctrl
• Tcm-batt fuse 14 15a
• Tft sens sig
• Trans ign1 fuse 19 15a
• Transmission control module (tcm) (left side of engine compt)
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (vss) (right rear of transmission)
• Vss hi sig
• Vss low sig
• Wake up serial data

4.8L VIN C, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008

List of elements for 4.8L VIN C, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008:

• 1-2 shift solenoid valve
• 2-3 shift solenoid (ss) valve
• 3-2 shift solenoid (ss) valve
• Automatic transmission
• Automatic transmission fluid pressure manual valve position switch
• Automatic transmission fluid temperature (tft) sensor
• Automatic transmission shift lever
• Body control module (bcm) (behind lower left side of dash)
• Computer data lines system
• Engine control module (ecm) (left side of engine compt)
• G201 (behind upper left end of dash)
• Hi spd gmlan +
• Hi spd gmlan -
• Ign
• Input speed sensor (iss)
• Instrument panel cluster (ipc)
• J116
• J126
• J217
• Lo spd gmlan
• Logic
• Mil ind
• Mil ind ctrl
• Nca
• Park/neutral sig
• Pnk
• Pressure control (pc) solenoid valve
• Prnd321
• Red
• Replicated tos sign
• Rev
• Tan
• Torque converter clutch (tcc) pulse width modulation (pwm) solenoid valve
• Torque converter clutch (tcc) solenoid valve
• Tow/ haul ind
• Tow/haul sw sig
• Tow/haul switch

5.3L VIN 0

5.3L VIN 0, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008

List of elements for 5.3L VIN 0, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008:

• 1-2 shift sol
• 2-3 shift sol
• 3-2 shift sol
• 4wd
• Brake sw sig
• Computer data lines system
• Except 4wd
• Exterior lights system
• G103 (front of right cylinder head)
• Gnd
• Hot at all times
• Hot w/ run/crank relay energized
• Ign vol
• Iss sig
• J106
• J127
• Left i/p junction block (below x1 left side of dash)
• Low ref
• Misc ign fuse 43 10a
• P/n
• Park/neutral position (pnp) switch (left side of automatic transmission)
• Pc sol vlv hi ctrl
• Pc sol vlv low ctrl
• Pnk
• Power distribution system
• Pressure sw sig a
• Pressure sw sig b
• Pressure sw sig c
• Replicated tos sig
• Serial data bus +
• Serial data bus -
• Stop lamp switch (top of brake pedal bracket)
• Sw sig a
• Sw sig b
• Sw sig c
• Sw sig p
• Tan
• Tcc pwm sol
• Tcc sol vlv ctrl
• Tcm-batt fuse 14 15a
• Tft sens sig
• Trans ign1 fuse 19 15a
• Transmission control module (tcm) (left side of engine compt)
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (vss) (right rear of transmission)
• Vss hi sig
• Vss low sig
• Wake up serial data

5.3L VIN 0, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008

List of elements for 5.3L VIN 0, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008:

• 1-2 shift solenoid valve
• 2-3 shift solenoid (ss) valve
• 3-2 shift solenoid (ss) valve
• Automatic transmission
• Automatic transmission fluid pressure manual valve position switch
• Automatic transmission fluid temperature (tft) sensor
• Automatic transmission shift lever
• Body control module (bcm) (behind lower left side of dash)
• Computer data lines system
• Engine control module (ecm) (left side of engine compt)
• G201 (behind upper left end of dash)
• Hi spd gmlan +
• Hi spd gmlan -
• Ign
• Input speed sensor (iss)
• Instrument panel cluster (ipc)
• J116
• J126
• J217
• Lo spd gmlan
• Logic
• Mil ind
• Mil ind ctrl
• Nca
• Park/neutral sig
• Pnk
• Pressure control (pc) solenoid valve
• Prnd321
• Red
• Replicated tos sign
• Rev
• Tan
• Torque converter clutch (tcc) pulse width modulation (pwm) solenoid valve
• Torque converter clutch (tcc) solenoid valve
• Tow/ haul ind
• Tow/haul sw sig
• Tow/haul switch

5.3L VIN J

5.3L VIN J, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008

List of elements for 5.3L VIN J, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008:

• 1-2 shift sol
• 2-3 shift sol
• 3-2 shift sol
• 4wd
• Brake sw sig
• Computer data lines system
• Except 4wd
• Exterior lights system
• G103 (front of right cylinder head)
• Gnd
• Hot at all times
• Hot w/ run/crank relay energized
• Ign vol
• Iss sig
• J106
• J127
• Left i/p junction block (below x1 left side of dash)
• Low ref
• Misc ign fuse 43 10a
• P/n
• Park/neutral position (pnp) switch (left side of automatic transmission)
• Pc sol vlv hi ctrl
• Pc sol vlv low ctrl
• Pnk
• Power distribution system
• Pressure sw sig a
• Pressure sw sig b
• Pressure sw sig c
• Replicated tos sig
• Serial data bus +
• Serial data bus -
• Stop lamp switch (top of brake pedal bracket)
• Sw sig a
• Sw sig b
• Sw sig c
• Sw sig p
• Tan
• Tcc pwm sol
• Tcc sol vlv ctrl
• Tcm-batt fuse 14 15a
• Tft sens sig
• Trans ign1 fuse 19 15a
• Transmission control module (tcm) (left side of engine compt)
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (vss) (right rear of transmission)
• Vss hi sig
• Vss low sig
• Wake up serial data

5.3L VIN J, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008

List of elements for 5.3L VIN J, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008:

• 1-2 shift solenoid valve
• 2-3 shift solenoid (ss) valve
• 3-2 shift solenoid (ss) valve
• Automatic transmission
• Automatic transmission fluid pressure manual valve position switch
• Automatic transmission fluid temperature (tft) sensor
• Automatic transmission shift lever
• Body control module (bcm) (behind lower left side of dash)
• Computer data lines system
• Engine control module (ecm) (left side of engine compt)
• G201 (behind upper left end of dash)
• Hi spd gmlan +
• Hi spd gmlan -
• Ign
• Input speed sensor (iss)
• Instrument panel cluster (ipc)
• J116
• J126
• J217
• Lo spd gmlan
• Logic
• Mil ind
• Mil ind ctrl
• Nca
• Park/neutral sig
• Pnk
• Pressure control (pc) solenoid valve
• Prnd321
• Red
• Replicated tos sign
• Rev
• Tan
• Torque converter clutch (tcc) pulse width modulation (pwm) solenoid valve
• Torque converter clutch (tcc) solenoid valve
• Tow/ haul ind
• Tow/haul sw sig
• Tow/haul switch

6.0L VIN 5

6.0L VIN 5, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008

List of elements for 6.0L VIN 5, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008:

• (front of right cylinder head) g103
• (not used)
• Accy volt
• Automatic transmission
• Automatic transmission fluid temperature (tft) sensor
• Aux hvac- ign fuse 48 10a
• Brake sw sig
• Computer data lines system
• Control solenoid valve assembly
• Driver motor generator power inverter module
• Engine control module (left side of engine compt)
• Exterior lights system
• G201 (behind upper left end of dash)
• Gmlan serial data bus +
• Gmlan serial data bus -
• Gnd
• Ground distribution system
• Hot at all times
• Hot w/ run/crank relay energized
• Ign
• Ign vol
• Ign voltage
• Instrument panel cluster (ipc)
• J104 (in engine harness, approximately 15 cm (5.91 in) from engine control module connector breakout)
• J106
• J127 (auto 4x4)
• J219 (w/ heated steering wheel)
• Left i/p junction block (below left end of dash)
• Left i/p junction block (below left side of dash)
• Logic
• Low reference
• Mil ctrl
• Mil ind
• Misc ign fuse 43 10a
• Pc solenoid 1 control
• Pc solenoid 2 control
• Pc solenoid 3 control
• Pc solenoid 4 control
• Pc solenoid 5 control
• Pc solenoid high control
• Pnk
• Power distribution system
• Pressure control (pc) solenoid valve 1
• Pressure control (pc) solenoid valve 2
• Pressure control (pc) solenoid valve 3
• Pressure control (pc) solenoid valve 4
• Pressure control (pc) solenoid valve 5
• Pressure control (pc) solenoid valve 6
• Replicated tos sig
• Serial data bus +
• Serial data bus -
• Shift solenoid (ss) 1 control
• Shift solenoid (ss) 2 control
• Shift solenoid (ss) valve 1
• Shift solenoid (ss) valve 2
• Stop lamp switch (top of brake pedal bracket)
• Tan
• Tcm-batt fuse 14 10a
• To transmission control module (tcm) (diagram 2 of 2)
• Trans ign1 fuse 19 15a
• Transmission control module (tcm)
• Transmission fluid temperature (tft) sensor signal
• Underhood fuse block (left side of engine compt)
• Wakeup serial data

6.0L VIN 5, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008

List of elements for 6.0L VIN 5, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008:

• (below left end of dash) (auto 4x4) transfer case shift control module
• (diagram 1 of 2)
• (in instrument panel harness, in transfer case shift control module connector breakout) (auto 4x4) j207
• (in steering column harness)
• 12v
• Accessory wake up serial data
• Automatic transmission
• Automatic transmission fluid pressure (tfp) manual valve position switch
• Automatic transmission internal mode switch (ims)
• Automatic transmission manual shift switch
• Automatic transmission shift lever
• Body control module (behind lower left side of dash)
• Brake sig
• Computer data lines system
• Control solenoid valve assembly
• Cruise control system
• From automatic transmission a
• Ftp switch 1 voltage
• Ftp switch 3 voltage
• Ftp switch 4 voltage
• Ftp switch 5 voltage
• Gmlan serial data bus +
• Gmlan serial data bus -
• Ground
• J216
• Nca
• Output speed sensor (oss)
• Output speed sensor (oss) signal
• Pnk
• Start
• Tan
• Tap up/ tap down sw sig
• Transmission control module (tcm)
• Transmission range switch sig a
• Transmission range switch sig b
• Transmission range switch sig c
• Transmission range switch sig p

6.2L VIN 8

6.2L VIN 8, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008

List of elements for 6.2L VIN 8, A/T Wiring Diagram (1 of 2) for Chevrolet Tahoe 2008:

• (front of right cylinder head) g103
• Accy volt
• Automatic transmission
• Automatic transmission fluid temperature (tft) sensor
• Aux hvac- ign fuse 48 10a
• Brake sw sig
• Cadillac
• Computer data lines system
• Control solenoid valve assembly
• Engine control module (left side of engine compt)
• Exterior lights system
• G201 (behind upper left end of dash)
• Gmc/chevrolet
• Gmlan serial data bus +
• Gmlan serial data bus -
• Gnd
• Ground distribution system
• Hot at all times
• Hot w/ run/crnk relay energized
• Ign
• Ign vol
• Ign voltage
• Instrument panel cluster (ipc)
• J104 (in engine harness, approximately 15 cm (5.91 in) from engine control module connector breakout)
• J106
• J219 (w/ heated steering wheel)
• Left i/p junction block (below left end of dash)
• Left i/p junction block (below left side of dash)
• Logic
• Low reference
• Mil ctrl
• Mil ind
• Misc ign fuse 43 10a
• Park/neutral sig
• Pc solenoid 1 control
• Pc solenoid 2 control
• Pc solenoid 3 control
• Pc solenoid 4 control
• Pc solenoid 5 control
• Pc solenoid high control
• Pnk
• Power distribution system
• Pressure control (pc) solenoid valve 1
• Pressure control (pc) solenoid valve 2
• Pressure control (pc) solenoid valve 3
• Pressure control (pc) solenoid valve 4
• Pressure control (pc) solenoid valve 5
• Replicated tos sig
• Serial data bus +
• Serial data bus -
• Shift solenoid (ss) 1 control
• Shift solenoid (ss) 2 control
• Shift solenoid (ss) valve 1
• Shift solenoid (ss) valve 2
• Stop lamp switch (top of brake pedal bracket)
• Tan
• Tcm-batt fuse 14 10a
• To control solenoid valve assembly (diagram 2 of 2)
• Torque converter clutch (tcc) pressure control (pc) solenoid valve
• Torque converter clutch pressure control solenoid control
• Tow/ haul ind
• Trans ign1 fuse 19 15a
• Transmission control module (tcm)
• Transmission fluid temperature (tft) sensor signal
• Underhood fuse block (left side of engine compt)
• Wakeup serial data
• X1 pnk
• X2 p3
• X5 b1
• X5 g4 pnk

6.2L VIN 8, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008

List of elements for 6.2L VIN 8, A/T Wiring Diagram (2 of 2) for Chevrolet Tahoe 2008:

• (below left end of dash) (auto 4x4) transfer case shift control module
• (diagram 1 of 2)
• 12v
• Accessory wake up serial data
• Automatic transmission
• Automatic transmission fluid pressure (tfp) manual valve position switch
• Automatic transmission internal mode switch (ims)
• Automatic transmission manual shift switch
• Automatic transmission shift lever
• Body control module (behind lower left side of dash)
• Computer data lines system
• Control solenoid valve assembly
• Cruise control system
• From automatic transmission a
• Ftp switch 1 voltage
• Ftp switch 3 voltage
• Ftp switch 4 voltage
• Ftp switch 5 voltage
• G201 (behind upper left end of dash)
• Gmlan serial data bus +
• Gmlan serial data bus -
• Ground
• Input speed sensor (iss)
• Input speed sensor (iss) signal
• J127
• J207 (auto 4x4) (in instrument panel harness, in transfer case shift control module connector breakout)
• J216
• J217
• Nca
• Output speed sensor (oss)
• Output speed sensor (oss) signal
• Pnk
• Red
• Start
• Tan
• Tap up/ tap down sw sig
• Tow/ haul sw sig
• Tow/ haul switch
• Transmission control module (tcm)
• Transmission range switch sig a
• Transmission range switch sig b
• Transmission range switch sig c
• Transmission range switch sig p
• X1 pnk
• X3 tan