Seat Temperature Switch: Testing and Inspection

WARNING: DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

1. Remove the heated seat switch and inspect the connector for damage.
2. Unplug the 7-way connector from the switch and check the harness terminals for proper ignition voltage and ground. Refer to Wiring Diagrams for complete heated seat system wiring diagrams.

JR Heated Seat Switch:

3. Check the drivers switch for resistance between pin terminals PB and 86B . Resistance should match the specifications shown in the table above, as the switch is rotated from #0 - #6. If not OK, replace the heated seat switch.
4. Check the passenger switch for resistance between pin terminals PF and 86F. Resistance should match the specifications shown in the table below, as the switch is rotated from #0 - #6. If OK, test the heated seat module. If not OK, replace the heated seat switch.