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Symptom: RPM MESSAGE NOT RECEIVED When Monitored and Set Condition: RPM MESSAGE NOT RECEIVED When Monitored: With the ignition on. Set Condition: The Hands Free Module does not detect a Bus message indicating current engine rpm. POSSIBLE CAUSES ATTEMPT TO COMMUNICATE WITH THE PCM MODULE TEST ACTION APPLICABILITY 1 Start and idle the engine. t, select Engine and read the Engine RPM. Was the DRBIII t able to I/D or communicate with the PCM and read RPM? All Yes → Go To 2 No → Refer to the Communication category for the related symptom(s). Perform BODY VERIFICATION TEST - VER 1. 2 With the DRBIII t, erase DTC’s. Cycle the ignition switch from off to on and wait approximately 1 minute. t, read DTC’s. Did this DTC reset? All Yes → Replace and program the Hands Free Module in accordance with the service information. No → Test Complete. 343 TELECOMMUNICATION |