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HOMESERVICE MANUALSTOYOTA2009CAMRY HYBRIDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTHEATED GLASS/DEFOGGERSWINDSHIELD/WINDOW GLASS (HYBRID)WINDOW DEFOGGER SYSTEMDIAGNOSIS SYSTEM
2009 Toyota Camry Hybrid

Diagnosis System

2009 Toyota Camry HybridSECTION Diagnosis System
  1. DESCRIPTION 
    1. The defogger system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use Techstream to check for malfunctions and perform repairs.
  2. CHECK DLC3 
    1. The ECU uses ISO 15765-4 communication. The terminal arrangement of the DLC3 complies with SAE J 1962 and matches the ISO 15765-4 format.
    Fig 1: Identifying DLC3 Connector Terminals
    G04828034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL DESCRIPTION

    Symbols (Terminal No.) Terminal Description Condition Specified Condition
    SIL (7) - SG (5) Bus "+" line During transmission Pulse generation
    CG (4) - Body ground Chassis ground Always Below 1 Ω
    SG (5) - Body ground Signal ground Always Below 1Ω
    BAT (16) - Body ground Battery positive Always 10 to 14 V
    CANH (6) - CANL (14) CAN bus line Power switch OFF(1) 54 to 69 Ω
    CANH (6) - CG (4) HIGH-level CAN bus line Power switch OFF(1) 200 Ω or more
    CANL (14) - CG (4) LOW-level CAN bus line Power switch OFF(1) 200 Ω or more
    CANH (6) - BAT (16) HIGH-level CAN bus line Power switch OFF(1) 6 kΩ or more
    CANL (14) - BAT (16) LOW-level CAN bus line Power switch OFF(1) 6 kΩ or more
    NOTE:
    (1) Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the power switch, any other switches or the door.

    If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.

    HINT:

    Connect the cable of Techstream to the DLC3, turn the power switch on (IG) and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.

    • If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle.
    • If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual.
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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.