TRANSMISSION – Buick LaCrosse CX 2006 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

3.6L VIN 7

3.6L VIN 7, A/T Wiring Diagram for Buick LaCrosse CX 2006

List of elements for 3.6L VIN 7, A/T Wiring Diagram for Buick LaCrosse CX 2006:

• (behind left side of dash, left of steering column) body control module
• (towards ambient light sensor)
• 1-2 shift sol
• 1-2 sol vlv ctrl
• 2-3 shift sol
• 2-3 sol vlv ctrl
• Automatic transmission
• Battery
• Brake pedal position sensor (under left side of dash)
• Code a
• Code b
• Code c
• Data link connector (under left side of dash)
• Engine control module (top of engine)
• G115 (mounted to bank 1 cylinder head above exhaust manifold)
• Gmlan serial data
• Ground
• Hot at all times
• Hot in run or start
• Ign 1
• Ign 3 voltage
• Iss high sig
• Iss low sig
• Low ref
• P/n
• P/n signal
• Parity
• Pc sol vlv ctrl
• Pc sol vlv hi ctrl
• Pnk
• Pressure control solenoid
• Red
• Red s115
• S116
• S201
• S202
• Serial data bus+
• Serial data bus-
• Stop lp sw
• Stop lp sw sig
• Sw sig
• Tan b
• Tcc pwm sol ctrl
• Tcc rel sw sig
• Tcc release switch
• Tcc sol valve
• Tcm fuse 8 15a
• Tft sens sig
• Trans range a
• Trans range b
• Trans range c
• Trans range p
• Trans sol fuse 21 10a
• Transmission control module (tcm)
• Transmission fluid pressure manual valve position switch
• Transmission fluid temperature sensor
• Transmission input shaft speed sensor
• Transmission internal mode switch
• Underhood fuse block (mounted to right strut c1 tower)
• Vehicle speed sensor (on transmission output shaft)
• Vss hi sig
• Vss low sig

3.8L VIN 2

3.8L VIN 2, A/T Wiring Diagram for Buick LaCrosse CX 2006

List of elements for 3.8L VIN 2, A/T Wiring Diagram for Buick LaCrosse CX 2006:

• (not used)
• (top right of intake manifold)
• 1-2 shift sol
• 1-2 shift solenoid
• 2-3 shift sol
• 2-3 shift solenoid
• 5 volt ref 2
• Acc
• At iss sig high
• At iss sig low
• Automatic transmission
• Battery
• Code a
• Code b
• Code c
• Ect sensor sig
• Engine coolant temperature sensor
• Fluid temp sensor
• G113 (on transaxle stud, near starter)
• Ground
• Hot at all times
• Hot in run or start
• Ignition 1
• Ignition 3
• Ignition switch
• Input shaft speed sensor
• Lock
• Low ref
• Manifold absolute pressure sensor
• Map sensor sig
• Parity
• Pc sol high
• Pc sol low
• Pcm fuse 15 10a
• Pcm/ etc fuse 16 15a
• Pnk
• Powertrain control module
• Pressure control solenoid
• Red a
• Red s115
• Run
• S101 (approximately 5 cm from breakout to pcm)
• Start
• Tan b
• Tcc release switch
• Tcc sol
• Tcc sw sig
• Tft sensor sig
• Torque converter clutch solenoid
• Tr sig a
• Tr sig b
• Tr sig c
• Tr sig p
• Trans sol fuse 21 10a
• Transmission internal mode switch
• Underhood fuse block (mounted to right strut tower)
• Vehicle speed sensor (on transmission out put shaft)
• Vss sig high
• Vss sig low