C0558

DTC C0558

Diagnostic Instructions

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

DTC Descriptor

DTC C0558 4B

- Calibration Mismatch

Diagnostic Fault Information





Circuit/System Description

The rear differential clutch control module (CCM) receives messages from other modules over GMLAN which are needed to perform all wheel drive functions

Conditions for Running the DTC

* The ignition switch is in the ON position.
* Ignition voltage is greater than 9 volts.

Conditions for Setting the DTC

The CCM is not programmed or incorrectly programed.

Action Taken When the DTC Sets

One or more of the following actions may occur:

* All Wheel Drive Off (AWD Disabled).
* Service All Wheel Drive (Service AWD).

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.
* The DTC is not detected in 100 consecutive drive cycles.

Reference Information

Schematic Reference

All-Wheel Drive Schematics

Connector End View Reference

Transfer Case Control Connector End Views

Electrical Information Reference

* Circuit Testing
* Connector Repairs
* Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs

Scan Tool Reference

* Scan Tool Data List
* Scan Tool Data Definitions

Circuit/System Verification

1. Perform the Diagnostic System Check - Vehicle. Initial Inspection and Diagnostic Overview
^ Diagnose any other Vehicle DTCs before attempting diagnosis of C0558.

2. With Tech 2, view CCM RDS Matching ID, The 2 digit rank can be found on the connector that plugs into the module from the clutch.
^ Program the CCM as required.