FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Checking Idling Speed



Checking Idling Speed





- Let the engine run until the radiator fan has started once.
- Turn off the A/C and all the power consumers.
- Read value: Idle Speed Deviation from Requested (Trionic).
- State what the diagnostic tool shows:

Max +/- 50 rpm - Remedial Action OK

Other value - Fault Not Rectified