P0703

Tests 507 - 511:

Tests 512 - 514:

SYMPTOM
P-0703 BRAKE SWITCH STUCK PRESSED OR RELEASED

WHEN MONITORED
With engine running. The PCM expects the signal to be high for 16 cycles while it monitors the brake switch signal during accel. and decel. modes.

SET CONDITION
After the vehicle speed increases, the PCM must accumulate 6 seconds while delta throttle voltage is above 0.02 volts. The count is reset to zero whenever the brake switch indicates a low signal.

POSSIBLE CAUSES
- Brake switch defective
- Brake switch ground circuit open
- Brake switch sense circuit open
- Brake switch sense circuit short to ground
- PCM connector observable defect
- PCM defective (voltage high)
- PCM defective (voltage low)