P1635 Diagnostic Trouble Code Discussion for July 2009
5-Volt Reference 'A' Circuit Malfunction
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| Help Request | Posted | |
| 2003 Chevrolet Trailblazer North Face 4.2L Hesitation, Surge, MIL Lamp on VIN: 1GNET16S53 P1635: 5-Volt Reference 1 Circuit Malfunction. I just replaced the PCM in hopes this would clear up the problem,But It didn't. The 5 Voltage problem is the culprit. Using My DVOM and the 5 volt Pin,coming from the PCM it will vary from 3.00 volts to 4.50 volts,Can't find anything else wrong,Just the varyi... |
July 25, 2009 |
