mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Reference Resistor|Page 3486 > < Diagram Information and Instructions|Page 3481
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Idle Calibration Resistor: Testing and Inspection
Reference Resistor

1.

With engine off, disconnect the reference resistor.

2.

Check the voltage between terminals 1 and 2 of the reference resistor connector.  If voltage reading is 5 volts, replace the reference resistor.  If
reading is not 5 volts, check for and repair open circuit.

Reference Resistor|Page 3486 > < Diagram Information and Instructions|Page 3481