DTC P0504 Cadillac
Brake Switch Circuit 1-2 Correlation
Brake Switch Circuit 1-2 Correlation
Description
The ignition is ON.
Cause and Solution
Aftermarket trailer brake controllers must be disconnected before diagnosing DTC P0504 due to they could result in incorrect diagnostics.
Video Guide
Diagnostic Info
- DTC Code: P0504
- Brand: Cadillac