Symptom:
P0586-SPEED CONTROL VENT SOLENOID CIRCUIT
When Monitored and Set Condition:
P0586-SPEED CONTROL VENT SOLENOID CIRCUIT
When Monitored: Ignition on. Speed Control active.
Set Condition: The PCM detects an open or short to voltage in the Speed Control Vent
Control circuit. One Trip Fault.
POSSIBLE CAUSES
SPEED CONTROL SOLENOID OPERATION
SPEED CONTROL VENT SOLENOID
(V35) S/C VENT SOL CONTROL CIRCUIT OPEN
(V35) S/C VENT SOL CONTROL CIRCUIT SHORTED TO GROUND
PCM (VENT SOLENOID)
TEST ACTION APPLICABILITY
1 Ignition on, engine not running.
With the DRBIIIt, read DTCs and record the related Freeze Frame data.
With the DRBIIIt, actuate the Speed Control Vent Solenoid and note operation.
Does the Speed Control Vent Solenoid acutate properly?
All
Yes → Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER-4-NGC.
No → Go To 2
2 Turn the ignition off.
Disconnect the Speed Control Servo harness connector.
Ignition on, engine not running.
With the DRBIIIt, actuate the Speed Control Vent Solenoid.
Using a 12-volt test light connected to ground, probe the (V35) Speed Control Vent
Solenoid Control circuit in the Speed Control Servo harness connector.
Does the test light illuminate brightly and flash?
All
Yes → Replace the Speed Control Servo.
Perform POWERTRAIN VERIFICATION TEST VER-4-NGC.
No → Go To 3
220
DRIVEABILITY - NGC
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