2000 Chrysler Intrepid BaseFACTORY OEM SERVICE PROCEDURE

Driver Seat Heat Output Open

  1. Turn ignition off. Disconnect Memory Heated Seat/Mirror Module (MHSMM) harness connector C3. Measure resistance between ground and terminal No. 12 (Red/Dark Green wire) at MHSMM harness connector C3. See Figure . If resistance is greater than 8.5 ohms, go to next step. If resistance is 8.5 ohms or less, replace MHSMM.
  2. Disconnect driver's heated seat cushion harness connector. Measure resistance in Red/Dark Green wire between terminal "A" at driver's heated seat cushion harness connector and terminal No. 12 at MHSMM harness connector C3. See Figure and Fig 1 . If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Red/Dark Green wire between driver's heated seat cushion and MHSMM.
  3. Disconnect driver's heated seat back cushion harness connector. Measure resistance in Brown/Black wire between terminal "B" at driver's heated seat cushion harness connector and terminal "A" at driver's heated seat back cushion harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Brown/Black wire between driver's heated seat cushion and driver's heated seat back cushion.
  4. Measure resistance between terminals "A" and "B" at driver's heated seat cushion connector (component side). If resistance is 2.5 ohms or less, go to next step. If resistance is greater than 2.5 ohms, replace driver's heated seat cushion.
  5. Measure resistance between ground and terminal "B" (Black wire) at driver's heated seat back cushion harness connector. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between driver's heated seat back cushion and ground.
  6. Measure resistance between terminals "A" and "B" at driver's heated seat back cushion connector (component side). If resistance is 2 ohms or less, problem is intermittent. If resistance is greater than 2 ohms, replace driver's heated seat back cushion.
Fig 1: Identifying Heated Seat Cushion Harness Connector Terminals
G99E54134Courtesy of DAIMLERCHRYSLER CORP.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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