P1595

Test 1 - 4:

Test 5 - 9:

Test 10 - 14:

Test 15 - 17:

SYMPTOM
P1595-SPEED CONTROL SOLENOID CIRCUITS

WHEN MONITORED
With the ignition on. Battery voltage greater than 10 volts. Speed Control Switched on.

SET CONDITION
The Powertrain Control Module actuates the vacuum and vent solenoids but they do not respond.

POSSIBLE CAUSES
- Good trip equal to zero
- Intermittent condition
- S/C servo
- (Z190) ground circuit open
- (V30) S/C brake switch output circuit
- Brake switch output(V30) speed control circuit open
- Brake lamp switch
- (V32) speed control power supply circuit
- PCM (S/C power supply)
- Speed control vacuum solenoid
- (V36) speed control vacuum solenoid control circuit open
- (V36) speed control vacuum solenoid control circuit shorted to ground
- PCM (vacuum solenoid)
- Speed control vent solenoid
- (V35) speed control vent solenoid control circuit open
- (V35) speed control vent solenoid control circuit shorted to ground
- PCM (vent solenoid)