The rear differential clutch control module (CCM) provides a power and ground circuits to the temperature sensor. When the temperature of the module is determined to be beyond its limits, the CCM will temporarily disable the rear drive system.

The ignition is ON.

An open or short to ground is detected on the temperature sensor circuits.

One or more of the following actions may occur:

Schematic Reference

All-Wheel Drive Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

All-Wheel Drive Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

1. Ignition OFF, disconnect the X2 harness connector at the clutch control module .
2. Ignition ON, verify a test lamp does not illuminate between the following circuits and ground:

•	low reference terminal 2

•	signal terminal 4

⇒	If the test lamp illuminates, test the appropriate circuit for a short to voltage.

3. Ignition OFF, test for infinite resistance between the following circuit terminals and ground:

•	low reference terminal 2

•	signal terminal 4

⇒	If less than the specified value, test the appropriate circuit for a short to ground.

4. Test for 310-113 K ohms between the low reference circuit terminal 2 and the signal circuit terminal 4.

⇒	If greater than the specified range, test the appropriate circuit for an open/high resistance. If the circuits test normal, replace the rear wheel drive module clutch housing.

5. If all circuits test normal, replace the CCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.