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Checking Switch Signal & Wiring At The Module

WARNING: This page is about a different car, the 2002 Dodge Grand Caravan, 2002 Dodge Caravan, 2002 Chrysler Voyager, and 2002 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect and isolate the battery negative cable.
  2. Access and disconnect the Gray 4-way connector from the heated seat module. Visually inspect wiring terminals for damage that would prevent positive connection. If NOT OK, repair or replace the necessary components.
  3. Reconnect the negative battery cable and turn heated seat ON in the LO position. Using an ohmmeter, check the resistance between cavities No. 2 and 3 of the Gray 4-way connector. Resistance should be about 3500 ohms (3.5 k/ohms). If not OK, check resistance directly at switch, as noted below. If OK, proceed. If NOT OK, replace the switch or faulty wiring.
  4. Turn heated seat On in the HI position. Using an ohmmeter, check the resistance between cavities No. 2 and 3 of the Gray connector noted above. Resistance should be 1400 ohms (1.4 k/ohms). If OK, proceed. If NOT OK, replace switch or faulty wiring.
  5. With the system ON in the HI position, check for battery voltage and ground at cavities 4 and 1. If OK, proceed with testing remaining components. If NOT OK, repair open or wiring short.
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