Note. The idle diagnostic procedure must be performed to enter the engine idle characteristics into the ECM memory.
Perform Computer Idle Diagnostics whenever you perform the following steps:
- replace ECM;
- reset the ECM;
- update the ECM software;
- replace or clean the throttle body.
Note. The procedure for clearing DTCs using the HDS diagnostic system does not require prior programming of the idle control computer.
Procedure
1. Make sure all electrical equipment (air conditioner, audio system, lighting fixtures, etc.) turned off.
2. Reset the ECM using the HDS diagnostic system.
3. Turn the ignition key to position «ON» (II) and wait 2 seconds.
4. Start the engine. Hold the crankshaft speed of 3.000 rpm without load (in neutral) until the radiator fan turns on or until the engine coolant temperature reaches 90°C.
5. Let the engine idle for approximately 5 minutes at full throttle.
Note. If the radiator cooling fan turns on, exclude its operation time from the 5 minute period.
6. Make sure the procedure «IDLE LEARN» on the menu «DATA LIST» HDS system is completed.