Diagnosis And Testing - Heated Seat Module
WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
If a heated seat fails to heat and one or both of the indicator lamps on a heated seat switch flash, refer to HEATED SEAT SYSTEM for the location of flashing LED heated seat system diagnosis and testing procedures. If a heated seat heats but one or both indicator lamps on the heated seat switch fail to operate, test the heated seat switch. Refer to HEATED SEAT SYSTEM for heated seat switch diagnosis and testing procedures. If the heated seat switch checks OK, proceed as follows.
- Check the heated seat element (Refer to HEATED SEAT SYSTEM ).
- Check the heated seat sensor (Refer to HEATED SEAT SYSTEM ).
- Check the heated seat switch (Refer to HEATED SEAT SYSTEM
).NOTE: Refer to HEATED SEAT SYSTEM for the location of complete heated seat system wiring diagrams and connector pin-out information.
- Using a voltmeter, backprobe the appropriate heated seat module connector, do not disconnect. Check for voltage at the appropriate pin cavities. 12v should be present. If OK go to Step 5, if Not, Repair the open or shorted voltage supply circuit as required.
- Using a ohmmeter, backprobe the appropriate heated seat module connector, do not disconnect. Check for proper continuity to ground on the ground pin cavities. Continuity should be present. If OK replace the heated seat module with a known good unit and retest system, if Not OK, Repair the open or shorted ground circuit as required.