Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2005 >> Grand Cherokee Laredo, 3.7 K, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0579 To P0633 >> Diagnosis And Testing >> P0586-Speed Control Vent Control Circuit >> Possible Causes

Possible Causes

Possible Causes 
(V32) S/C SUPPLY CIRCUIT OPEN
(V32) S/C SUPPLY SHORT TO GROUND
(V35) S/C VENT SOL CONTROL CIRCUIT SHORTED TO GROUND
(V35) S/C VENT SOL CONTROL CIRCUIT OPEN
(Z384) GROUND CIRCUIT OPEN
SPEED CONTROL VENT SOLENOID
PCM

Always perform  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  before proceeding.