Missing Vehicle Speed Input

SYMPTOM MISSING VEHICLE SPEED INPUT
When Monitored and Set Condition: MISSING VEHICLE SPEED INPUT
- When Monitored: Continuously with ignition on.
- Set Condition: This condition occurs when the Transfer Case Control Module stops receiving a bus message for Vehicle Speed for the period of 5 seconds.

POSSIBLE CAUSES
- INTERMITTENT WIRING AND CONNECTORS
- PCM COMMUNICATION DTC'S PRESENT
- VERIFY CLUSTER OPERATION
- CONDITION PRESENT