The PCM sets DTC P0504 if the PCM detects signal of the brake warning lamp and the brake switch does not correlate within the predetermined time.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Plausibility check | 1. Poor connection 2. Open or short in Stop lamp switch 3. Faulty Stop lamp switch |
Enable Conditions |
•
IG On | |
Threshold Value |
•
When brake light and brake test switch signals does not equal each other for more than 1sec | |
Diagnostic Time |
•
60 sec | |
MIL On Condition |
•
NO MIL |
