TSX L4-2.4L (2005)
Engine Control Module: Service and Repair
Idle Learn Procedure
ECM/PCM Idle Learn Procedure
The idle learn procedure must be done so the ECM/PCM can learn the engine idle characteristics.
Do the idle learn procedure whenever you do any of these actions:
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The ECM/PCM is replaced.
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The ECM/PCM is reset.
NOTE: Erasing DTCs with the HDS does not require you to do the idle learn procedure.
-
The throttle body is replaced or cleaned.
Procedure
1. Make sure all electrical items (A/C, audio, rear window defogger, lights, etc.) are off.
2. Reset the ECM/PCM the HDS.
3. Turn the ignition switch ON (II), and wait 2 seconds.
4. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on, or until the engine coolant
temperature reaches 194 °F (90 °C).
5. Let the engine idle about 5 minutes with the throttle fully closed.
NOTE: If the radiator fan comes on, do not include its running time in the 5 minutes.
