FixVault

Diagnostic procedure

FAST IDLE/RUNS ON - DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1
  • Connect WDS or equivalent to DLC-2.
  • Access ECT PID.
  • Start and warm up engine to normal operating temperature.
  • Is ECT PID reading between 82-112 °C {180-234 °F}? 
Yes Go to next step.
No ECT PID is higher than 112 °C {234 °F}: 
ECT PID is less than 82 °C {180 °F}: 
2
  • Connect WDS or equivalent to DLC-2.
  • Turn ignition key to ON (Engine OFF).
  • Retrieve any DTCs.
  • Is "PASSED" displayed?
Yes No DTC is displayed: 
  • Go to next step.
No DTC is displayed: 
  • Go to appropriate DTC test.
3
  • Is there air leakage felt or heard at intake-air system components while racing engine to higher speed?
Yes Repair or replace parts as necessary.
No Inspect for accelerator cable free play.
(See ACCELERATOR CABLE INSPECTION .)
4
  • Verify test results.
    • If okay, return to diagnostic index to service any additional symptoms.
    • If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
      • If vehicle is repaired, troubleshooting completed.
      • If vehicle is not repaired or additional diagnostic information is not available, replace or reprogram PCM.