P1683

Tests 1 - 6:

Tests 7 - 11:

Tests 12 - 16:

Tests 17 - 21:

Tests 22 - 23:

SYMPTOM
P1595 SPEED CONTROL SOLENOID CIRCUITS

TEST NOTE
This symptom is diagnosed using the test P1595 SPEED CONTROL SOLENOID CIRCUITS

WHEN MONITORED
With the ignition key ON and the speed control switched ON.

SET CONDITION
The speed control power supply circuit is either open or shorted to ground.

POSSIBLE CAUSES
- Ground circuit at S/C servo connector open
- S/C wiring harness inter defect (S/C vent solenoid actuation)
- S/C vacuum solenoid control circuit open
- S/C vacuum solenoid control circuit shorted to ground
- S/C vent solenoid control circuit open
- S/C vent solenoid control circuit shorted to ground
- S/C wiring harness inter defect (S/C vacuum solenoid actuation)
- S/C wiring harness observable defect
- S/C servo defective (12V driver circuit)
- S/C servo defective (12V driver circuit)
- S/C power supply circuit open
- S/C power supply circuit shorted to ground
- Brake switch
- Brake switch out of adjustment
- S/C brake switch output circuit open
- S/C brake switch output circuit shorted to ground
- PCM defective (12V driver circuit)