Chrysler PT Cruiser 2001 Service Manual Supplement page 2674

SPEED CONTROL
Symptom List:
P1595-SPEED CONTROL SOLENOID CIRCUITS
P1683-SPD CTRL PWR RELAY; OR S/C 12V DRIVER CKT
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P1595-SPEED CONTROL SOLE-
NOID CIRCUITS.
When Monitored and Set Condition:
P1595-SPEED CONTROL SOLENOID CIRCUITS
When Monitored: With the ignition key on, the speed control switched on, the SET switch
pressed and the vehicle in drive gear moving between 30-100 mph (45-165 kmh).
Set Condition: The powertrain control module actuates the vacuum and vent solenoids
but they do not respond.
P1683-SPD CTRL PWR RELAY; OR S/C 12V DRIVER CKT
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.
POWERTRAIN CONTROL MODULE
GROUND CIRCUIT AT S/C SERVO CONNECTOR OPEN
P1595/P1683-BR LAMP SWITCH
S/C POWER SUPPLY CIRCUIT OPEN
S/C VACUUM SOLENOID CONTROL CIRCUIT OPEN
S/C POWER SUPPLY CIRCUIT SHORTED TO GROUND
S/C VACUUM SOLENOID CONTROL CKT SHORT TO GROUND
S/C VENT SOLENOID CONTROL CIRCUIT OPEN
S/C BRAKE SWITCH OUTPUT CIRCUIT SHORTED TO GROUND
S/C VENT SOLENOID CONTROL CKT SHORT TO GROUND
P1595/P1683-S/C SERVO
S/C BRAKE SWITCH OUTPUT CIRCUIT OPEN
PCM (12V DRIVER CIRCUIT)
POSSIBLE CAUSES
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