Diagnosis And Testing - Driver Seat Switch

2004 Toyota Matrix XR, FWD, StandardSECTION Diagnosis And Testing - Driver Seat Switch
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the driver seat switch assembly, refer to REMOVAL  .
  2. Using an ohmmeter, check the appropriate ground circuit cavity of the driver seat switch connector for continuity to ground. It should be present, If OK go to Step 3, If NOT OK repair the open ground circuit as required.
  3. Using an voltmeter, check the appropriate 12v circuit cavity of the power seat switch connector for approx. 12v. It should be present, If OK go to Step 4, If NOT OK repair the open voltage supply circuit as required.
  4. Using an ohmmeter, verify the Seat Switch resistance values, using the seat switch connector receptacle. If the values are not within spec, replace the driver seat switch.
    MEMORY SWITCH SPECIFICATION

    MEMORY SWITCH TESTING SWITCH RESISTANCE +/-4% PIN'S 11-4
    1 8000 Ohms (8 Kohms)
    SET 4815 Ohms (4.815 Kohms)
    SET & 1 3420 Ohms (3.420 Kohms)
    2 2410 Ohms (2.410 Kohms)
    SET & 2 1730 Ohms (1.730 Kohms)
    HEATED SEAT SWITCH TESTING  PIN'S 10-4 
    LO 8010 Ohms (8.010 Kohms)
    HI 2415 Ohms (2.415 Kohms)
    POWER SEAT/ADJUSTABLE PEDAL SWITCH TESTING  PIN'S 9-4 
    SEAT CUSHION FRONT DOWN 8005 Ohms (8.005 Kohms)
    SEAT CUSHION FRONT UP 2405 Ohms (2.405 Kohms)
    PEDALS FORWARD 4810 Ohms (4.810 Kohms)
    SEAT CUSHION FRONT DOWN & PEDALS FWD 3415 Ohms (3.415 Kohms)
    SEAT CUSHION FRONT UP & PEDALS FWD 1725 Ohms (1.725 Kohms)
    PIN'S 12-4 
    SEAT CUSHION REAR DOWN 8025 Ohms (8.025 Kohms)
    SEAT CUSHION REAR UP 2400 Ohms (2.4 Kohms)
    PEDALS REARWARD 4805 Ohms (4.805 Kohms)
    SEAT CUSHION REAR DOWN & PEDALS BACK 3410 Ohms (3.410 Kohms)
    SEAT CUSHION REAR UP & PEDALS BACK 1720 Ohms (1.720 Kohms)
    PIN'S 8-4 
    SEAT CUSHION REARWARD 8020 Ohms (8.020 Kohms)
    LUMBAR OUT 4820 Ohms (4.820 Kohms)
    SEAT CUSHION REARWARD & LUMBAR OUT 3425 Ohms (3.425 Kohms)
    SEAT CUSHION FORWARD 2420 Ohms (2.420 Kohms)
    SEAT CUSHION FORWARD & LUMBAR OUT 1735 Ohms (1.735 Kohms)
    PIN'S 7-4 
    RECLINER BACK 8030 Ohms (8.030 Kohms)
    LUMBAR IN 4825 Ohms (4.825 Kohms)
    RECLINER BACK & LUMBAR IN 3430 Ohms (3.430 Kohms)
    RECLINER FORWARD 2425 Ohms (2.425 Kohms)
    RECLINER FORWARD & LUMBAR IN 1715 Ohms (1.715 Kohms)
RENDER: 1.0x

NO RELATED

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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.