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P0651 Diagnostic Trouble Code Discussion for February 2014

5-Volt Reference 2 Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0651
Help Request Posted
2004 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEC14T94
P0651: 5-Volt Reference 2 Circuit Malfunction. ... in advance. Vehicle initially came in with complaint of CEL on solid. Scan revealed FCs P0441 "incorrect purge flow", P0440 "evap system fault", P0446 "evap vent control fault". Performed evap system test, all passed except one: Eva...
February 28, 2014