RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
Seat Heater Sensor: Testing and Inspection
NOTE: ANY RESISTANCE VALUES (OHMS) GIVEN IN THE FOLLOWING TEXT ARE SUPPLIED USING THE AUTOMATIC RANGE
GENERATED BY A FLUKE AUTOMOTIVE METER. IF ANOTHER TYPE OF MEASURING DEVICE IS USED THE VALUES GENERATED
MAY NOT BE THE SAME AS THE RESULTS SHOWN HERE, OR MAY HAVE TO BE CONVERTED TO THE RANGE USED HERE.
1. Position the appropriate seat in the full forward position.
2. Make certain the ignition switch is in the OFF position.
3. Disconnect the 4-way heated seat wire harness connector from the seat cushion frame. Using an ohmmeter, check the resistance between the
heated seat sensor input circuit cavity and the heated seat sensor feed circuit cavity in the 4-way heated seat wire harness connector. The heated
seat sensor resistance should be between 1 kilohm and 100 kilohms. If OK, go to Step 4. If not OK, replace the faulty seat cushion heating
element assembly
4. 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 Diagnosis and Testing the Heated Seat Module in Electronic Control Modules, for the proper heated seat module diagnosis and
testing procedures. If not OK, repair the shorted or open heated seat wire harness as required.
For complete circuit diagrams, refer to Wiring Diagrams.
