2010 Cadillac CTS Sedan AWD V6-3.6L Page 977
Ignition voltage is supplied directly to the skip shift solenoid. The engine control module (ECM) controls the skip shift solenoid by grounding the
control circuit via an internal switch called a low side driver. The low side driver has a fault line which monitors the control circuit. When the ECM
commands the skip shift solenoid ON, the voltage on the control circuit should be low, near 0 V. When the ECM commands the control circuit to
the skip shift solenoid OFF, the voltage should be high, near battery voltage.
Conditions for Running the DTC
P080C or P080D
The engine is running.
Conditions for Setting the DTC
P080C or P080D
* The ECM detects that the commanded state of the driver and the actual state of the control circuit does not match.
* The condition exists for 5 seconds.
Action Taken When the DTC Sets
P080C or P080D are Type B DTCs.
Conditions for Clearing the MIL/DTC
P080C or P080D are Type B DTCs.
Diagnostic Aids
The battery must be fully charged and pass a battery test. Refer to Battery Inspection/Test (See: Starting and Charging/Testing and
Inspection/Component Tests and General Diagnostics/Battery Inspection/Test).
Reference Information
Schematic Reference
Manual Transmission Schematics (See: Transmission and Drivetrain/Manual Transmission/Transaxle/Diagrams/Electrical Diagrams/Tremec
6-Speed - Manual Transmission)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Manual Transmission Description and Operation (See: Transmission and Drivetrain/Manual Transmission/Transaxle/Description and
Operation/Tremec 6-Speed - Manual Transmission/Manual Transmission Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit
Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning)
Circuit/System Verification
1. Ignition ON, command the skip shift solenoid ON and OFF, with a scan tool, while observing the following skip shift circuit status
parameters.
* Skip shift solenoid control Ckt. Short Gnd Test Status
* Skip shift solenoid control Ckt. Open Test Status
* Skip shift solenoid control Ckt. Short Volts Test Status
瀚慐ach parameter should toggle between OK and Not Run or Not Run and OK.
