Durango 2WD V8-4.7L VIN N (2001)
Seat Heater: Testing and Inspection
Heated Seat Element and Sensor Test
The heated seat module will self-diagnose shorted or open heated seat element circuits and the sensor circuits. Refer to Heated Seat System for the
location of the proper heated seat system diagnosis and testing procedures. To manually check the heated seat element and sensor circuits, proceed as
follows. The wire harness connectors for the seat cushion heated seat element and sensor and for the seat back heated seat element are located under the
seat, near the rear edge of the seat cushion frame.
Heated Seat Element
1. Disconnect and isolate the battery negative cable. Disconnect the 4-way heated seat wire harness connector. Check for continuity between the two
heated seat element circuit cavities in the seat cushion trim cover half of the 4-way heated seat wire harness connector. There should be continuity.
If OK, go to Step 2. If not OK, go to Step 3.
2. Check for continuity between one of the heated seat element circuit cavities in the seat cushion trim cover half of the 4-way heated seat wire
harness connector and the seat cushion frame. There should be no continuity. If OK, go to Step 5. If not OK, go to Step 4.
3. Disconnect the 2-way heated seat wire harness connector between the seat cushion trim cover and the seat back trim cover. Check for continuity
between the heated seat element circuit cavity and the ground circuit cavity in the seat back trim cover half of the 2-way heated seat wire harness
connector. There should be continuity. If OK, go to Step 5. If not OK, replace the faulty seat back trim cover unit.
4. Check for continuity between the heated seat element circuit cavity in the seat back trim cover half of the 2-way heated seat wire harness connector
and the seat back frame. There should be no continuity. If OK, go to Step 5. If not OK, replace the faulty seat back trim cover unit.
5. Test the seat wire harness between the heated seat module connector and the 4-way heated seat wire harness connectors for shorted or open
circuits. If OK, replace the faulty seat cushion trim cover unit. If not OK, repair the shorted or open seat wire harness as required.
Heated Seat Sensor
1. Disconnect and isolate the battery negative cable. Disconnect the 4-way heated seat wire harness connector. Using an ohmmeter, check the
resistance between the heated seat sensor input circuit cavity and the heated seat sensor feed circuit cavity in the seat cushion cover half of the
4-way heated seat wire harness connector. The heated seat sensor resistance should be between 600 ohms and 200 kilo ohms. If OK, go to Step 2.
If not OK, replace the faulty seat cushion trim cover unit.
2. Test the seat wire harness between the heated seat module connector and the 4-way heated seat wire harness connector for shorted or open circuits.
If OK, (Refer to ELECTRONIC CONTROL MODULES/MEMORY HEATED SEAT/MIRROR MODULE - DIAGNOSIS AND TESTING).
Also refer to the Body Diagnostic for additional diagnosis and testing procedures. If not OK, repair the shorted or open heated seat wire harness as
required.
