× 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

P0504 Diagnostic Trouble Code Discussion for March 2022

Brake Switch A-B Correlation 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 P0504
Help Request Posted
2005 Toyota Sequoia SR5 4.7L MIL Lamp on VIN: 5TDZT34A95
P0504: Brake Switch A-B Correlation Malfunction. ... my butt. Customer bought it at the auction with the following trouble code set: P0101, P1442, C1201, C1223, C1241, C1244, C1247, C1360, C2125 & C2144. After replacing the air pump and air switch valve now I get codes P2445 & P 0504 which I ...
March 22, 2022