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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 605 (MULTIPLEX COMMUNICATION SYSTEM - DIAGNOSIS)DTC B1282: SKID CONTROL ECU COMMUNICATION STOPINSPECTION 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 2002 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONTINUITY OF COMMUNICATION LINE 
    1. Check the wire harness among the skid control ECU and airbag ECU and combination meter.
      Fig 1: Identifying Skid Control ECU & Airbag ECU & Combination Meter
      G03387158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the connectors of the skid control ECU, airbag ECU and combination meter.
      2. Check the continuity between terminal S7-3 (MPX2) of the skid control ECU vehicle's side connector and terminal A21-24 (MPX1) of the airbag ECU vehicle's side connector.

        Standard: Continuity 

      3. Check the continuity between terminal S6-17 (MPX1) of the skid control ECU vehicle's side connector and terminal C8-3 (MPX-) of the combination meter vehicle's side connector.

        Standard: Continuity 

    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 
  2. CHECK SKID CONTROL ECU ASSY 
    1. Inspect the ECU power source input.
      1. Disconnect the ECU connectors S7 and S6.
        2. Fig 2: Identifying ECU Connectors S7
        G03387159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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:

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  • • You are not confident in the next step or safety outcome.