Caravan FWD V6-3.3L VIN 3 Flex Fuel (2001)
Seat Heater Switch: Testing and Inspection
Passenger Heated Seat Switch Test
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO THE RESTRAINTS BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, SEAT OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE
PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
1. Check the fused ignition switch output (run) fuse in the intelligent power module. If OK, go to Step 2.If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
2. Turn the ignition switch to the ON position. Check for battery voltage at the fused ignition switch output (run) fuse in the intelligent power
module. If OK, go to Step 3.If not OK, repair the open fused ignition switch output (run) circuit to the ignition switch as required.
3. Disconnect and isolate the battery negative cable. Remove the center bezel from the instrument panel and disconnect the instrument panel wire
harness connectors from the heated seat switch connector receptacle. Check for continuity between the ground circuit cavity of the instrument
panel wire harness connector for the inoperative heated seat switch(es) and a good ground. There should be continuity. If OK, go to Step 4.If not
OK, repair the open ground circuit to ground as required.
4. Reconnect the battery negative cable. Turn the ignition switch to the ON position. Check for battery voltage at the fused ignition switch output
(run) circuit cavity of the instrument panel wire harness connector for the inoperative heated seat switch(es). If OK, turn the ignition switch to the
OFF position, disconnect and isolate the battery negative cable, and go to Step 5.If not OK, repair the open fused ignition switch output (run)
circuit to the intelligent power module fuse as required.
Passenger Heated Seat Switch Test
Fig.3 Switch Connector
5. Test the heated seat switch(es) as shown in the Heated Seat Switch Test chart. If OK, go to Step 6.If not OK, replace the faulty heated seat
switch(es).
6. Disconnect the instrument panel wire harness connector from the Body Control Module (BCM) connector receptacle. Check for continuity
between the seat heater switch sensor ground circuit cavity of the instrument panel wire harness connector for the inoperative heated seat
switch(es) and a good ground. There should be no continuity. If OK, go to Step 7.If not OK, repair the shorted seat heater switch sensor ground
circuit as required.
7. Check for continuity between the seat heater switch sensor ground circuit cavities of the instrument panel wire harness connector for the in
operative heated seat switch and the instrument panel wire harness connector for the BCM. There should be continuity. If OK, go to Step 8.If not
OK, repair the open seat heater switch sensor ground circuit as required.
8. Check for continuity between the seat heater switch mux circuit cavity of the instrument panel wire harness connector for the inoperative heated
