Circuit/System Verification
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition - On/Vehicle - In Service Mode
- Verify DTC C1162 is not set.
- If the DTC is set
Refer to: DTC C1162
- Go to next step: If the DTC is not set
- If the DTC is set
- Verify DTC C1167 is not set.
- If the DTC is set
Refer to: Circuit/System Testing
- Go to next step: If the DTC is not set
- If the DTC is set
- Operate the vehicle within the Conditions for Running the DTC.
Verify the DTC does not set.
- If the DTC sets
Refer to: Circuit/System Testing
- Go to next step: If the DTC is not set
- If the DTC sets
- All OK.