Solstice L4-2.0L Turbo (2008)
Cruise Control Description and Operation (See: Description and Operation)
Electrical Information Reference
*
Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics)
*
Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics)
*
Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics)
*
Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Important:
*
Repair any brake system related symptoms and DTCs before performing this diagnostic.
*
Inspect for proper operation of the clutch pedal position (CPP) sensor. Do not perform this diagnostic if DTC P0806, P0807, P0808 or
P080A are stored as current or history. Refer to DTC P0806 (See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/P Code Charts/P0806) , DTC P0807 or P0808 (See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/P Code
Charts/P0807) or DTC P080A (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/P Code Charts/P080A) if these DTCs are set as current or history.
Engine ON, while rotating the steering wheel to both steering stops, observe the scan tool Cruise Control Switch parameter while pressing each of the
cruise control switches. The parameter should toggle between On, Off, Resume and Set as the applicable switch is pressed.
Circuit/System Testing
Important: Electromagnetic interference (EMI) on the speed sensor signal circuit may cause erratic cruise control operation.
1. Ignition OFF, remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement (See:
Restraint Systems/Air Bag Systems/Air Bag/Service and Repair) .
2. Disconnect the harness connector at the steering wheel controls switch - left.
3. Ignition ON, test for greater than 10 volts between the supply voltage circuit terminal 4 and ground.
‹› If less than the specified range, test the supply voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the BCM.
4. Verify the scan tool Cruise Control Switch parameter is OFF.
‹› If not the specified value, test the signal circuit terminal 5 for a short to voltage. If the circuit tests normal, replace the BCM.
5. Ignition OFF, connect the harness connector at the steering wheel controls switch - left.
6. Ignition ON, with the cruise control switch in the ON position, observe the scan tool Cruise Control Switch parameter. The parameter should
display ON.
‹› If not the specified value, test the signal circuit terminal 5 for a short to ground or an open/high resistance. If the circuit tests normal, test or
replace the steering wheel controls switch - left.
7. Observe the scan tool Cruise Control Switch parameter while pressing the RES + portion of the cruise control switch. The parameter should
display Resume.
‹› If not the specified value, test or replace the steering wheel controls switch - left.
8. Observe the scan tool Cruise Control Switch parameter while pressing the SET - portion of the cruise control switch. The parameter should display
Set.
‹› If not the specified value, test or replace the steering wheel controls switch - left.
9. If the circuits test normal, test or replace the ECM.
Component Testing
Important: The cruise control ON/OFF switch must be ON in order to properly measure the resistance of the - SET and the + RES switches.
