× 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

P1633 Diagnostic Trouble Code Discussion for March 2010

TCM Internal - Test External Watchdog Performance

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 P1633
Help Request Posted
2000 Mercury Cougar V6 2.5L MIL Lamp on VIN: 1ZWHT61LOY
P1633: keep alive power voltage too low. ... before.Car come in for smog inspection fail code P1633 keep alive power voltage too low.But MIL Off not on,any techs had done it or how to trick it please rely to me , thank you so much, by myself i have seen this code before, thank you again.
March 29, 2010