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 instrument panel cluster (IPC) illuminates the AWD Disabled indicator by supplying ground to the lamp. The Rear Differential Clutch Control Module (CCM) sends a serial data messages to the IPC, in order to command the indicator ON or OFF.
Reference Information
Schematic Reference
Connector End View Reference
Transfer Case Control Connector End Views
Description and Operation
All-Wheel Drive Description and Operation
Description and Operation Reference
All-Wheel Drive Description and Operation
Electrical Information Reference
Scan Tool Reference
Scan Tool Data List for Scan Tool Information
Circuit/System Testing
Note: Diagnose all vehicle DTCs before using this diagnostic.
With the scan tool, select instrument panel special functions Lamp Test. Command the instrument panel warning lamps OFF.
| ⇒ | If the AWD Disabled warning lamp does not turn OFF, replace the IPC. |
| ⇒ | If the AWD Disabled lamp turns OFF and there are no DTCs stored in any vehicle systems, replace the CCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for CCM replacement, setup, and programming
