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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 853 (PASSENGER DOOR CONTROL SYSTEM - DIAGNOSIS)CIRCUIT INSPECTIONDTC B1233 JAM PROTECTION LIMIT SWITCH CIRCUIT ON PASSENGER DOORINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

In case of not using the LEXUS hand-held tester, start from step  3.

  1. Whether or not this DTC is cleared when the power window is lowered from fully close condition to half opened condition. 
    1. YES : it is suspected that the DTC was detected by ECU with any failure in the past. 
    2. NO : Go to next step. 
  2. Check jam protection limit switch using LEXUS hand-held tester. 

    PREPARATION: 

    Connect the LEXUS hand-held tester to DLC 3.

    CHECK: 

    Check the jam protection limit switch using DATA LIST.

    1. OK : Replace passenger door ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    2. NG : Go to next step. 
  3. Check jam protection limit switch (See  INSPECTION  ). 
    1. NG : Replace power window motor. 
    2. OK : Go to next step. 
  4. Check wire harness and connector between jam protection limit switch and passenger door ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG : Repair or replace wire harness or connector. 
    2. OK : Replace passenger door ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
RENDER: 1.0x

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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.