Idle Speed Inspection

NOTE:
Before checking the idle speed, check these items:
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The malfunction indicator lamp (MIL) has not been reported on, and there are no DTCs.
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Ignition timing
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Spark plugs
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Air cleaner
?
PCV system
Apply the parking brake.

1. Evaporative Emission (EVAP) Canister Purge Valve Connector - Disconnect

Disconnect the evaporative emission (EVAP) canister purge valve connector.

2. HDS - Connect
1.
Connect the HDS to the DLC (A) located under the driver’s side of the dashboard.
2.
Press the engine start/stop button to select the ON mode.
NOTE: Make sure the HDS communicates with the PCM. If it doesn’t, go to the DLC circuit troubleshooting.

3. Idle Speed - Inspect
1.
Start the engine. Hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
2.
Check the idle speed under no load conditions: headlights, blower fan, radiator fan, audio system, and air conditioner off.
Idle speed should be:
M/T
750 ± 50 rpm (in neutral)
A/T
650 ± 50 rpm (in P or N)
3.
Let the engine idle for 1 minute with high electric load (A/C on, temperature set to max cool, blower fan on high, headlights on high beam).
Idle speed should be:
M/T
750 ± 50 rpm (in neutral)
A/T
700 ± 50 rpm (in P or N)
NOTE: If the idle speed is not within specification, do the PCM idle learn procedure. If the idle speed is still not within specification, go to the symptom troubleshooting.

4. Evaporative Emission (EVAP) Canister Purge Valve Connector - Connect

Connect the evaporative emission (EVAP) canister purge valve connector.