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P0586-SPEED CONTROL VENT CONTROL CIRCUIT (CONTINUED) For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS). For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: 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 (Z155) GROUND CIRCUIT OPEN SPEED CONTROL VACUUM SOLENOID PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. SPEED CONTROL VENT CONTROL Ignition on, engine not running. With the scan tool, read DTCs and record the related Freeze Frame data. With the scan tool, actuate the Speed Control Vent Solenoid and note operation. Does the Speed Control Vacuum Solenoid actuate properly? Yes >> Refer to the INTERMITTENT CONDITION symptom in the Driveability category. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Go To 2 2. (V30) S/C BRAKE SWITCH OUTPUT CIRCUIT Turn the ignition off. Disconnect the S/C Servo harness connector. Ignition on, engine not running. Using the scan tool, actuate the S/C Vent Solenoid. Using a test light connected to ground, probe the (V30) S/C Brake Does the test light illuminate brightly and flash on and off? Yes >> Go To 5 No >> Go To 3 HB ENGINE ELECTRICAL DIAGNOSTICS 9 - 651 |