323001567 - D011 ENGINE IDLING HIGH

The customer complains that: The engine idle speed has increased
Test results
1CHECK USING THE EXAMINERAll OKProblems encounteredOperation
Check for the presence of any faults by connecting to the engine management control unit using the Examiner.Move on to Step 2.Presence of errors.Continue as instructed by the diagnostic equipment.
2ALTERNATOR CHECKAll OKProblems encounteredOperation
Check that the alternator is working properly.    See E5010 STARTING AND RECHARING Move on to Step 3.1. Alternator voltage too low.2.Alternator defective.1. Replace the voltage regulator.    Op. 5530A24 ALTERNATOR VOLTAGE REGULATOR - R.R. WITH ALTERNATOR REMOVED 2. Replace the alternator.    Op. 5530A14 ALTERNATOR - R+R FOR VERSIONS WITH AIR CONDITIONOMG
3ENGINE COOLANT TEMPERATURE SENSOR CHECKAll OKProblems encounteredOperation
Check that the engine coolant temperature sensor is working properly.    See Test 5030AA WATER TEMPERATURE SENSOR CHECKMove on to Step 4.1. Temperature measured too low.2.Sensor wiring defective.1. Replace the temperature sensor.2.Restore correct wiring.
4ACCELERATOR PEDAL SENSOR CHECKAll OKProblems encounteredOperation
Check that the accelerator pedal is correctly positioned.Using the Examiner, check that the accelerator pedal is working properly.End of diagnosis.1.Accelerator pedal incorrectly positioned.2.Accelerator pedal sensor defective.1.Position the accelerator pedal correctly.2.Replace the accelerator pedal.    Op. 1068A20 ACCELERATOR PEDAL WITH BUILT-IN POTENTIOMETER - R.R