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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 521 (AUTOMATIC TRANSMISSION SHIFT CONTROL SYSTEM - DIAGNOSIS)DTC C2310: OPEN OR SHORT CIRCUIT IN BATTINSPECTION 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.
  1. INSPECT FUSE (P CON MAIN) 
    Fig 1: Identifying P CON MAIN Fuse
    G02918336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the P CON MAIN fuse from the engine room R/B and J/B.
    2. Check for continuity of the P CON MAIN fuse.

    Standard: Continuity 

    NG: INSPECT FOR SHORT IN ALL COMPONENTS CONNECTED TO FUSE AND REPAIR OR REPLACE THEM IF NEEDED, AND REPLACE FUSE 

    OK 

  2. READ VALUE ON HAND-HELD TESTER 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the hand-held tester on.
    4. Select the item below in the DATA LIST, and read its value displayed on the hand-held tester.
    DATA LIST DISPLAY VALUE

    Item Measurement Item/ Range (Display) Normal Condition
    BATT VOL VAL BATT voltage value/min: 0 V, max: 20 V Actual power supply voltage 9 to 14 V

    Standard: 

    Voltage: 9 to 14 V 

    OK: REPLACE TRANSMISSION CONTROL ECU ASSY 

    NG 

  3. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSY - P CON MAIN FUSE) 
    Fig 2: Identifying BATT And P CON MAIN Fuse Connector Terminal
    G02918337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the T4 connector from the transmission control ECU assy.
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester connection (Symbols) Condition Specified condition
    T4-13 (BATT) - 2 (P CON MAIN Fuse) Always Below 1 Ω
    T4-13 (BATT)- Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (P CON MAIN FUSE - BATTERY) 

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.