Diagnosis And Testing - Heated Seat Switch

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Refer to appropriate SYSTEM WIRING DIAGRAMS article for the location of complete heated seat system wiring diagrams.

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.

Fig 1: JR Heated Seat Switch

Courtesy of DAIMLERCHRYSLER CORP.

1 - REAR AND FRONT VIEW OF HEATED SEAT SWITCH

Remove the heated seat switch as described in this article and inspect the connector for damage.

Unplug the 7-way connector from the switch and check the harness terminals for proper ignition voltage and ground. Refer to appropriate SYSTEM WIRING DIAGRAMS article for complete heated seat system wiring diagrams.

CHECKING DRIVERS HEATED SEAT SWITCH
SWITCH POSITION	RESISTANCE VALUE (ohm) BETWEEN PINS PB & 86B
0	OPEN
1	.4 OHM
2	100 OHMS
3	200 OHMS
4	300 OHMS
5	400 OHMS
6	.500 K OHMS (500 OHMS)

Check the drivers switch for resistance between pin terminals PB and 86B . See Fig 1. 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.
Check the passenger switch for resistance between pin terminals PF and 86F . See Fig 1. 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.

CHECKING PASSENGER HEATED SEAT SWITCH
SWITCH POSITION	RESISTANCE VALUE (ohm) BETWEEN PINS PF & 86F
0	OPEN
1	.4 OHM
2	100 OHMS
3	200 OHMS
4	300 OHMS
5	400 OHMS
6	.500 K OHMS (500 OHMS)