P1635 Diagnostic Trouble Code Discussion for April 2006
5-Volt Reference 'A' Circuit Malfunction
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| Help Request | Posted | |
| 2001 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1ND52J11 P1635: 5-Volt Reference 1 Circuit Malfunction. ... Customer brought car in for check engine light and a intermittent high idle. Had a dtc p1635, 5 volt ref. circuit and p1189, engine oil pressure switch. Started by checking p1635 first. Checked 5 volt circuit for tps, map, egr position, and fuel tank press... |
April 24, 2006 | |
| 2001 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1ND52J11 P1635: 5-Volt Reference 1 Circuit Malfunction. ... Customer brought car in for check engine light and a intermittent high idle. Had a dtc p1635, 5 volt ref. circuit and p1189, engine oil pressure switch. Started by checking p1635 first. Checked 5 volt circuit for tps, map, egr position, and fuel tank press... |
April 26, 2006 |
