Circuit/System Verification
- Ignition ON, perform the Auxiliary Gauge Sweep test with the scan tool, verify all auxiliary gauges sweep from the low to high positions.
- If none of the auxiliary gauges sweep properly
Refer to Auxiliary Gauges Malfunction .
- If one, two, or three of the auxiliary gauges sweep properly
Replace the P26 Auxiliary Gauge Module.
- If all auxiliary gauges sweep properly
- If none of the auxiliary gauges sweep properly
- Verify that DTC B1420 is not set.
- If the DTC B1420 is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If the DTC B1420 is not set
- If the DTC B1420 is set
- Replace the P26 Auxiliary Gauge Module.