P0573

Test 1 - Test 2:

Test 3 - Test 5:

SYMPTOM
P0573-BRAKE SWITCH NO.1 CIRCUIT HIGH

WHEN MONITORED
Ignition on.

SET CONDITION
When the PCM recognizes Brake Switch #1 is stuck in the high/off position. One Trip Fault. Three good trips to turn off the MIL.

POSSIBLE CAUSES
- Good trip equal to zero
- Brake lamp switch operation
- (B15) Brake switch no.1 signal circuit open
- (Z249) Ground circuit open
- PCM