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Diagnosis And Testing - Heated Seat Element

NOTE:

For complete circuit diagrams, see Wiring Information. Wiring Information includes wiring diagrams, connector pin-out and location views, splice and ground locations.

NOTE:

The wire harness connectors for the heating elements are located under the seat.

NOTE:

When testing the heated seat elements for resistance, be certain to sit in the seat in question and move around the heating elements within the seat while testing. Moving the heating elements will help eliminate the possibility of an intermittent open in the element, which would only be evident in a certain position.

  1. Locate and disconnect the seat electrical connectors as necessary.
  2. Check the resistance between the circuits leading in and out of the suspect heated seat element. The resistance should be between the specifications listed in the following Heated Seat Element Resistance chart. If OK, Refer to DIAGNOSIS AND TESTING . If not OK, replace the inoperative heated seat element. Refer to PAD, HEATER, REMOVAL and PAD, HEATER, INSTALLATION .
HEATED SEAT ELEMENT RESISTANCE

Element Location Acceptable Resistance Value
Seat Bottom Cushion 1.6 - 1.0 ohms
Seat Back Cushion 1.4 - 0.9 ohms
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