GM Service Manual Online
For 1990-2009 cars only
Makes
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Buick
🢒
2009
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LaCrosse
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Diagnostic Navigation
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Vehicle Diagnostic Information
🢒 Automatic Transmission Controls Schematics
Figure
1:
TCM Power, Ground, and Serial Data (LS4)
Figure
2:
Shift and TCC Solenoid Valves, TFT Sensor, and Stop Lamp Switch (LS4)
Figure
3:
PC Solenoid Valve, Fluid Pressure Manual Valve Position Switch, ISS and VSS Sensors (LS4)
Figure
4:
Automatic Transmission Internal Mode Switch (IMS) (LS4)
Figure
5:
Shift and TCC Solenoid Valves, TFT Sensor, and Stop Lamp Switch (L26)
Figure
6:
PC Solenoid Valve, Fluid Pressure Manual Valve Position Switch, ISS and VSS Sensors (L26)
Figure
7:
Automatic Transmission Internal Mode Switch (IMS) (L26)