RAM 2500 Truck 4WD L6-6.7L DSL Turbo VIN A (2007)
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If a single LED indicator lamp for one heated seat switch/module does not operate and the heated seat elements heat, replace the switch with the
inoperative indicator lamp.
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If both LED indicator lamps for a heated seat switch/module operate, but the heated seat elements do not heat to check the suspect heated seat
elements. If the elements test OK, proceed to STEP 1.
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If both seats (driver and passenger) fail to heat and the indicator lamps on the heated seat switch/modules for both seats fail to operate, test the
heated seat fuses in the Integrated Power Module (IPM). If the heated seat fuses check OK, go to STEP 1.
DRIVER HEATED SEAT SWITCH/MODULE
1. Remove the heated seat switch/modules.
2. Connect the battery negative cable.
3. Turn the ignition to the "RUN" position.
4. Check for battery voltage on terminals 4 and 6 of the switch/module connector of the inoperative seat. Battery voltage should be present on both
terminals. If OK go to STEP 5. If NOT OK repair the open or shorted fused B(+) circuit as required.
5. Check for continuity between ground terminal 1 of the switch/module connector of the inoperative seat and a good ground. If OK go to STEP 6. If
NOT OK, repair the open or shorted ground circuit as required.
6. Check for continuity between the heated seat element supply circuit terminal 3 of the switch/module connector of the inoperative seat and the
heated seat element connector of the inoperative seat. If OK go to STEP 7. If NOT OK, repair the open or shorted supply circuit as required.
7. Perform the heated seat element diagnosis for the inoperative seat. If the elements test OK, replace the inoperative heated seat switch/module. If
NOT OK, replace the inoperative heated seat element.
PASSENGER HEATED SEAT SWITCH/MODULE
8. Remove the heated seat switch/modules.
