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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Air Conditioning Controls) >> A/C Compressor Clutch Relay >> Diagnosis And Testing - A/C Compressor Clutch Relay >> Relay Test

Relay Test

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

The compressor clutch relay (Fig 1 ) is located in the Power Distribution Center (PDC). Refer to the PDC label for relay identification and location. Remove the relay from the PDC to perform the following tests:

  1. A relay in the de-energized position should have continuity between terminals 87A and 30, and no continuity between terminals 87 and 30. If OK, go to Step 2. If not OK, replace the faulty relay.
  2. Resistance between terminals 85 and 86 (electromagnet) should be 75 +/- 5 ohms. If OK, go to Step 3. If not OK, replace the faulty relay.
  3. Connect a battery to terminals 85 and 86. There should now be continuity between terminals 30 and 87, and no continuity between terminals 87A and 30. If OK, see the Relay Circuit Test below. If not OK, replace the faulty relay.
    Fig 1: Identifying Compressor Clutch Relay
    G02655877Courtesy of DAIMLERCHRYSLER CORP.
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