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B1440 Diagnostic Trouble Code Discussion for June 2017

Power mode master input circuit mismatch


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Trouble Ticket Help Requests for DTC B1440
Help Request Posted
2006 Chevrolet Silverado 2500 HD LT 6.0L No Start, Cuts out, Stall VIN: 1GCHC24UX6
B1440: Power mode master input circuit mismatch. This Silverado has not only eaten my lunch but is in the process of finishing my dinner. This is what I have done: 1. Threw in a Delco Crank Sensor, no help. 2. Cleaned all grounds including the famous G103, no help. 3. Checked for excessive crank movement, n...
June 22, 2017