B2455 GMC – Cellular Phone Microphone Circuit Malfunction

B2455 GMC Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B2455 GMC Possible Causes

Faulty Cellular Phone Microphone,Cellular Phone Microphone harness is open or shorted,Cellular Phone Microphone circuit poor electrical connection,Faulty Vehicle Communication Interface Module (VCIM)

B2455 GMC Description

The Vehicle Communication Interface Module (VCIM) detects that the cellular microphone is connected through the cellular microphone signal circuit and the cellular microphone low reference circuit.