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P0342 Diagnostic Trouble Code Discussion for April 2015

CMP Sensor Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0342
Help Request Posted
2003 Chevrolet Silverado 2500 HD 6.0L No Start, MIL Lamp on VIN: 1GCHK29U23
P0342: CMP Sensor Circuit Low Voltage. I have found no signal at PCM brown/wht wire pin 73, on the scan tool I saw no signal for CMP high to low and no low to high. At the CMP connector I've checked 12volt reference pin to low reference, I get 12 volts. I've run a wire from brn/wht, at CMP sensor t...
April 17, 2015