Zeroing

Zeroing

• Ensure the ignition key is turned off.
• Check that the climate control system is off, the accelerator pedal is not depressed and the accelerator cable is correctly adjusted (see next paragraph).
• Connect switch MPX 97 (tool 1806365000) to the tester connection and move the handle to position 3.
• Connect a tester (Examiner).
• Set the Examiner to "Control Unit Test" mode.
• Turn the ignition key on.
• Set the Examiner to "active test" mode, then select "Reset self-adaptive parameters" and "Idle actuator".
• Confirm reset and wait for the "Executed" message.
• Turn the ignition off and wait for 30 seconds.

Self-learning

• Turn the ignition on and wait for 30 seconds.
• Use the Examiner to re-establish communication with the engine control system.
• Set the Examiner to "Parameters" mode and select "Idle identification test - executed" and "Idle identification signals - synchronised" from the "Selection" menu.

NOTE If at least one of the parameters is not as specified, turn the ignition off and repeat the procedure. If the parameter is still not as specified, check the test lead is connected properly and the equipment working properly.

• Turn the ignition off and wait for 30 seconds.
• Start the engine without operating the accelerator pedal and wait for the fan to come on.
• Disconnect the tester.
• Carry out a test run for a few kilometres, then ensure idle speed is as specified when the engine is warm.

ACCELERATOR CONTROL CABLE

Adjustment

• slacken lock nut (1);
• adjust nut (2) to alter the clearance of accelerator cable (3) to achieve complete throttle closure (adjustment screw 5 in contact) and a cable clearance (4) of 5 mm with the pedal released.

Proceed as follows:

tighten to reduce the clearance
loosen to increase the clearance

• tighten the locknut following adjustment

Once the cable has been adjusted to set idle speed, connect the tester to the appropriate connection and check that throttle opening is at least 80° with the pedal fully depressed.