Circuit/System Verification
- Ignition - On / Vehicle - In Service Mode
- Brake Pedal - Applied
Verify the scan tool parameter: Brake Pedal Position Sensor. = Active
- If not the specified value
Refer to Stop Lamps Malfunction for diagnosis of the B22 Brake Pedal Position Sensor.
- Go to next step: If the specified value
- If not the specified value
- Brake Pedal - Released
Verify the scan tool parameter: Brake Pedal Position Sensor. = Inactive
- If not the specified value
Refer to Stop Lamps Malfunction for diagnosis of the B22 Brake Pedal Position Sensor.
- Go to next step: If the specified value
- If not the specified value
- Ignition - On / Vehicle - In Service Mode
- Verify that no DTCs are set.
- If any DTC is set
- Go to next step: If no DTC is set
- {If available} Verify the scan tool parameter: Park/Neutral Position Switch = Park
- If not the specified state
{If available} Refer to: Shift Indicator Indicates Wrong Gear Selection
- Go to next step: If the specified state
- If not the specified state
- Ignition - Crank
Verify the scan tool parameter:
- { Without BTM } 5V Ignition Switch = Crank Request
- Accessory = Inactive
- { With BTM } Engine Control Module - Power Mode = Crank Request
- If not the specified state
Refer to: Power Mode Mismatch (With BTM)Power Mode Mismatch (Without BTM)
- Go to next step: If the specified state
- Verify the scan tool parameter: Crankshaft Position Active Counter = Does not Increment
- If the parameter value increments
Replace the component: B26 Crankshaft Position Sensor
- Go to next step: If the parameter value does not increment
- If the parameter value increments
- Verify the component works as specified: Engine - Rotate (s)
- If the component does not work as specified
Verify the following conditions do not exist:
- Accessory drive belt component - Seized
- Engine - Seized
- Go to next step: If the component works as specified
- If the component does not work as specified
- Ignition - Crank
Verify the component works as specified:
- M64 Starter Motor = Activated - Rotate (s)
- Engine = Cranking
- {M64 Starter Motor Rotate (s) & Starter Pinion Clicks} If the component does not work as specified
Refer to: Circuit/System Testing
- Go to next step: If the component works as specified
- All OK.
Steps 2 and 3 are for vehicles equipped with a push button ignition switch. If the vehicle is not equipped with a push button ignition switch, continue to step 4.