Diagnostic Trouble Code (DTC) Information

Condition 

If a malfunction of the speed signal is detected in the Transmission control module (TCM), a malfunction message is sent to engine control module (ECM) and a diagnostic trouble code is stored in the engine control module (ECM).

Diagnostic trouble code for the speed sensor's signal is stored in the Transmission control module (TCM).

Substitute Value 

• None.

Possible Source 

• Trace the cause of the fault in the Transmission Control Module (TCM).

Fault symptom[s] 

• Cruise control does not operate