Compass Malfunction (DIC)

Compass Malfunction (DIC)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

Circuit/System Description

The compass information is displayed in the driver information center (DIC). As the vehicle travels with or against the earths magnetic pull, the compass heading signal to the DIC changes. As a result of the compass heading signal change, the DIC adjusts and changes the direction of the compass display. When an invalid signal is sent to the DIC or a malfunction exists in the compass heading, the DIC blanks the display and displays '- -' , 'CAL' or C.

Reference Information
Schematic Reference

Instrument Cluster Schematics (Instrument Cluster Schematics)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Driver Information Center (DIC) Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

1. Ignition ON, verify that the DIC compass does not display "C" or "CAL".

• If the DIC compass displays "C" or "CAL", perform the Compass Calibration and Magnetic Variance procedure. Refer to Compass Calibration and Magnetic Variance (Driver Information Center (DIC)) (Description and Operation)Compass Calibration and Magnetic Variance (Mirror) (Description and Operation).

2. Verify that the DIC compass display is not blank.

• If the DIC compass display is blank, replace the IPC.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

Control Module References (Programming and Relearning) for the IPC replacement, setup, and programming.