Sprinter 3500 V6-3.0L DSL Turbo VIN 45 (2007)
Blower Motor Resistor: Testing and Inspection
FRONT BLOWER MOTOR RESISTOR
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering wheel, steering column, or
instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the
airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system.
Failure to take the proper precautions could result in accidental airbag deployment and possible serious injury or death.
NOTE: For circuit descriptions and diagrams, refer to Air Conditioning/Heater in Wiring Diagrams.
1. Disconnect and isolate the negative battery cable.
2. Disconnect the wire harness connector from the blower motor resistor.
3. Using an ohmmeter, check for continuity between all of the blower motor resistor terminals. In each case there should be continuity. If OK, repair
the wire harness circuits between the blower motor switch and the blower motor resistor or blower motor as required. If not OK, replace the
inoperative blower motor resistor.
