Grand Cherokee 2WD V8-4.7L VIN J (2004)
Seat Heater Control Module: Testing and Inspection
HEATED SEAT MODULE
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals. If any of the above conditions are
present, repair as necessary. If not, use a DRB III scan tool and the proper Diagnostic Procedures to test the HSM or MHSM. For complete circuit
diagrams, refer to Power Seat Premium I/III in Wiring Diagrams.
