Circuit/System Verification
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, verify that no ignition, starter relay, brake pedal position sensor, theft deterrent, or automatic transmission DTCs are set that would cause the ECM to disable engine starting.
- If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Ignition ON, observe the scan tool BCM Push Button Ignition Switch parameter. Place the ignition switch in the crank position, the parameter should display Active.
- If not the specified value, refer to Power Mode Mismatch .
- Transmission range selector in park, verify the scan tool Transmission Control Module (TCM) Internal Mode Switch parameter displays Park.
- If the TCM Internal Mode Switch parameter does not indicate Park, refer to Transmission Internal Mode Switch Logic .
- Transmission range selector in park or neutral attempt to start the vehicle. The crank relay should click and the engine should begin cranking.