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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 532 (HYBRID CONTROL SYSTEM - DIAGNOSIS)DTC P3000/123: BATTERY CONTROL SYSTEM MALFUNCTION, DTC P3000/125 BATTERY CONTROL SYSTEM MALFUNCTION, DTC P3000/603 BATTERY CONTROL SYSTEM MALFUNCTIONINSPECTION 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 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

After repairing the malfunction, restart the system (to turn the READY lamp ON) and recheck the DTCs.

  1. READ OUTPUT DTC (HV BATTERY) 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the power switch ON (IG).
    3. Turn the hand-held tester ON.
    4. On the hand-held tester, enter the following menus: DIAGNOSIS / OBD/MOBD / HV BATTERY / DTC INFO/TROUBLE CODES.
    5. Read DTCs.
      1. Result: DTCs are output 

    YES: GO TO RELEVANT DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART  ) 

    NO: REPLACE BATTERY ECU ASSY (See BATTERY ECU ASSY ) 

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.