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HOMESERVICE MANUALSTOYOTA2009CAMRY HYBRIDREPAIR AND DIAGNOSISENGINE MECHANICALSTARTERSTARTING SYSTEM (HYBRID)SMART KEY SYSTEMPOWER SWITCH INDICATOR CIRCUITINSPECTION PROCEDURE
2009 Toyota Camry Hybrid

Inspection Procedure

2009 Toyota Camry HybridSECTION Inspection Procedure
  1. INSPECT POWER SWITCH 
    1. Remove the power switch.
      Fig 1: Identifying Power Switch Connector Terminals
      G05618538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Apply battery voltage between the terminals of the switch, and check the illumination condition of the switch.
      NOTE:
      • If the positive (+) lead and the negative (-) lead are incorrectly connected, the power switch indicator will not illuminate.
      • If the voltage is too low, the indicator will not illuminate.

      OK 

      TERMINALS OF SWITCH AND ILLUMINATION CONDITION SPECIFICATION

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 11 (SWIL) Battery negative (-) → Terminal 4 (COM) or 5 (GND) Illuminates
      Battery positive (+) → Terminal 12 (INDS) Battery negative (-) → Terminal 4 (COM) or 5 (GND) Illuminates
      Battery positive (+) → Terminal 13 (INDW) Battery negative (-) → Terminal 4 (COM) or 5 (GND) Illuminates

      NG: REPLACE POWER SWITCH 

      OK: Go to Next Step 

  2. CHECK WIRE HARNESS (POWER SWITCH - MAIN BODY ECU AND BODY GROUND) 
    1. Disconnect the E52 switch connector.
      Fig 2: Identifying Wire Harness (Power Switch - Main Body ECU And Body Ground)
      G05009315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the E7 ECU connector.
    3. Measure the resistance according to the value (s) in the table below.

    Standard resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Condition Specified Condition
    E52-11 (SWIL) - E7-25 (SWIL) Always Below 1 Ω
    E52-12 (INDS) - E7-15 (INDS) Always Below 1 Ω
    E52-13 (INDW) - E7-14 (INDW) Always Below 1 Ω
    E52-5 (GND) - Body ground Always Below 1 Ω
    E52-4 (COM) - Body ground Always Below 1 Ω
    E52-11 (SWIL) or E7-25 (SWIL) - Body ground Always 10 kΩ or higher
    E52-12 (INDS) or E7-15 (INDS) - Body ground Always 10 kΩ or higher
    E52-13 (INDW) or E7-14 (INDW) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE MAIN BODY ECU 

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.