RAM 3500 Truck 4WD L6-5.9L DSL Turbo VIN C (2002)
between approximately 12 volts and 8 volts,
If OK go to Step 5.
If NOT OK check for continuity between the switch and control module on the high heat driver circuit.
If OK replace the heated seat control module.
5. Back-probe the heated seat module wire harness connector, do not disconnect. Check cavity # 2 for approximately 5 volts, voltage should be
present,
If OK go to Step 6.
If NOT OK replace the heated seat control module.
6. Back-probe the heated seat module wire harness connector, do not disconnect. Check cavity # 7 for a range in voltage from 1.72 volts (warm seat)
- 3.0 volts (cold seat). It should be within this range.
If OK replace the heated seat module.
If NOT OK test the Heated Seat Sensor.
If NOT OK, replace the right heated seat element and sensor assembly.
If the heated seat sensor tests OK, check for continuity between the right heated seat cushion connector and control module connector on the 5
volts supply circuit.
If NOT OK, repair the open or shorted 5 volts supply circuit as required.
If OK check for continuity between the right heated seat cushion connector and control module connector on the temperature sensor input circuit.
If NOT OK, repair the open or shorted temperature sensor input circuit as required.
If OK replace the heated seat control module.
