Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit/System Description
The compass information is displyed 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
Connector End View Reference
Displays and Gages Connector End Views
Description and Operation
Driver Information Center (DIC) Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Ignition ON, verify that the DIC compass does not display "C" or "CAL".
- Verify that the DIC compass display is not blank.
| ⇒ | If the DIC compass displays "C" or "CAL", perform the Compass Calibration and Magnetic Variance procedure. Refer to Compass Calibration and Magnetic Variance . |
| ⇒ | If the DIC compass display is blank, replace the IPC. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for the IPC replacement, setup, and programming.
