Circuit/System Verification
- Ignition ON.
- Verify DTC U18B9-U18BF is not set.
- If DTC U18B9-U18BF is set along with other DTCs set
Diagnose all other DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If DTC U18B9-U18BF is set without other DTCs set
- Program the device that set the DTC.
- Ignition OFF, remove the scan tool, open and close the driver door. Wait 60 s.
- Verify the DTC does not set.
- If the DTC sets, replace the appropriate device.
- If the DTC does not set
- All OK.
- If DTC U18B9-U18BF is not set
- If DTC U18B9-U18BF is set along with other DTCs set
- All OK