Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Sierra 3500 HD, 2015 GMC Sierra 2500 HD, 2015 GMC Sierra 1500, 2015 Chevrolet Silverado 3500 HD, and 2015 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify the scan tool Brake Transmission Shift Interlock Solenoid Actuator Command parameter changes from Inactive to Active when the brake pedal is applied.
- If the parameter does not change
Refer to Stop Lamps Malfunction
- If the parameter changes
- If the parameter does not change
- Verify the transmission shift lever moves out of the PARK position when the brake pedal is applied.
- If the transmission shift lever does not move out of the PARK position
Refer to Circuit/System Testing.
- If the transmission shift lever does move out of the PARK position
All OK.
- If the transmission shift lever does not move out of the PARK position