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P0641 Diagnostic Trouble Code Discussion for September 2011

5-Volt Reference 1 Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0641
Help Request Posted
2007 Chevrolet Tahoe LT 5.3L Hesitation, MIL Lamp on, Loss of power VIN: 1GNFK130X7
P0641: 5-Volt Reference 1 Circuit Malfunction. Truck brought to shop with codes po641, po606, po532, po107. As soon as you clear the codes, it may not come back for a couple of days. It normally happens when the car is idling on park. As soon as code po641 comes out, the reduce engine power in dash message...
September 14, 2011
2007 Chevrolet Tahoe LT 5.3L Hesitation, MIL Lamp on, Loss of power VIN: 1GNFK130X7
P0641: 5-Volt Reference 1 Circuit Malfunction. Truck brought to shop with codes po641, po606, po532, po107. As soon as you clear the codes, it may not come back for a couple of days. It normally happens when the car is idling on park. As soon as code po641 comes out, the reduce engine power in dash message...
September 14, 2011