Volt Gauge Malfunction

Volt Gauge Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

The auxiliary gauge module displays the battery voltage measured at the B+ input circuit.

Reference Information

Schematic Reference

Instrument Cluster Schematics Instrument Cluster Schematics

Connector End View Reference

Component Connector End Views Fuel Pump and Level Sensor Assembly - Primary

Description and Operation

Auxiliary Gauges Description and Operation Auxiliary Gauges Description and Operation

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. 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 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

2. Verify that DTC B1420 is not set.

• If the DTC B1420 is set
Refer to DTC B1325, B1330, B1420, B1424, B1517, C0800, P0560, P0562, or P0563 B1325.

• If the DTC B1420 is not set

3. Replace the P26 Auxiliary Gauge Module.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

Control Module References Control Module References for Auxiliary Gauge Module replacement, programming, and setup