× 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

P1637 Diagnostic Trouble Code Discussion for August 2010

Generator 'L' Terminal 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 P1637
Help Request Posted
1999 Chevrolet Corvette 5.7L long crank time VIN: 1G1YY32G2X
P1637: Generator 'L' Terminal Circuit Malfunction. this car cam in with a running rough problem,and a complaint of a long crank time.checked the fuel presser and noticed it would read 55 pounds but would drop down tow 0 pounds real fast,so i jumped on it and replaced the fuel pump.did not fix the problem.this ...
August 10, 2010