P1593

Test 1:

Test 2 - Test 5:

Test 6:

SYMPTOM
P1593-SPEED CONTROL SWITCH STUCK

WHEN MONITORED
Ignition on.

SET CONDITION
S/C Switch is mechanically stuck in the On/Off, Resume/Accel, or Set position for too long. One trip fault.

POSSIBLE CAUSES
- Speed control switch status
- Speed control switches
- (V37) S/C signal circuit shorted to battery voltage
- (V37) S/C signal circuit open
- (K4) Sensor ground open
- PCM