P0641 Diagnostic Trouble Code Discussion for September 2011
5-Volt Reference 1 Circuit Malfunction
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.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 |
