× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P1635 Diagnostic Trouble Code Discussion for July 2006

5-Volt Reference 'A' 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 P1635
Help Request Posted
2003 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1CFCHGVH
P1635: 5-Volt Reference 1 Circuit Malfunction. ... chartfor P1635. I have 5-volt ref. at egr,tps,map code keeps coming back checked harness found no problem the only runnng problem is high idle intermittenty clear code drops down to norm. And one time while testing i had 6.25v at tps and other still 5v onl...
July 29, 2006