P1593

Test 1:

Test 2 - Test 5:

Test 6 - Test 8:

SYMPTOM
P1593-SPEED CONTROL SWITCH NO.1 STUCK

WHEN MONITORED
Ignition on.

SET CONDITION
S/C Switch #1 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 the (K900) sensor ground circuit
- (V37) S/C signal circuit shorted to ground
- (V37) S/C signal circuit shorted to battery voltage
- (V37) S/C signal circuit open
- (K900) Sensor ground circuit open
- PCM