GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2007 🢒 VUE - FWD 🢒 Diagnostic Navigation 🢒 Programming and Setup 🢒 Idle Learn
  1. Install a scan tool.
  2. Diagnose and repair any DTCs before proceeding with this procedure. Refer to Diagnostic Trouble Code (DTC) List - Vehicle for the applicable DTC that set.
  3. Ensure that all electrical loads and accessories are OFF.
  4. Turn OFF the air conditioning.
  5. Ensure that the vehicle is in PARK or NEUTRAL.
  6. Turn ON the ignition.
  7. Clear the DTC information with the scan tool.
  8. Wait 5 seconds and start the engine.
  9. Operate the engine with no load at 3,000 RPM until the ECT reaches 90°C (194°F).

    10. Important: If the engine cooling fan turns ON during the idle portion of this procedure, do not include the fan run time in the total idle time.

  10. Let the engine idle with the THROTTLE CLOSED and the engine cooling fan OFF, for a total of 5 minutes.
  11. The PCM has a new learned idle position.
  12. The idle learn procedure is required when the following service procedures have been performed:
    13. • The throttle body assembly is replaced
    • The throttle valve is cleaned--Deposits can build up in the throttle body requiring periodic cleaning of the throttle valve and throttle bore area. Refer to Throttle Body Inspection and Cleaning .
    • The Clear DTCs function has been performed
    • The PCM has been programmed.
    • The PCM is replaced

Idle Speed Inspection
  1. Install a scan tool.
  2. Ensure that all electrical loads and accessories are OFF.
  3. Turn OFF the air conditioning.
  4. Ensure that the vehicle is in PARK or NEUTRAL.
  5. Start and run the engine until the ECT is at least 80°C (176°F).
  6. Ensure that the scan tool data parameter Engine at Operating Temperature says YES.
  7. Observe that the engine speed is 730 RPM +/-50 RPM with the scan tool.
  8. Idle the engine for 1 minute with the AC ON and the blower motor operating on HIGH.
  9. Observe that the engine speed is 730 RPM +/-50 RPM with the scan tool.
  10. Compare the engine speed at idle with the scan tool to the following specifications:
    11. • All engine accessories OFF--730 RPM +/-50 RPM
    • Turn the AC ON and the heater fan on HIGH--730 RPM +/-50 RPM
  11. If the scan tool indicated that the engine idle was within the specified values, the idle speed is normal.
  12. If the scan tool indicated that the engine idle was more than or less than specified values, refer to Rough, Unstable, or Incorrect Idle and Stalling .