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HOMESERVICE MANUALSTOYOTA2013SEQUOIA LIMITED, 5.7L ENG VIN WREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTWARNING SYSTEMSINTUITIVE PARKING ASSIST SYSTEM (DIAGNOSTICS & CIRCUIT TESTS)INTUITIVE PARKING ASSIST SYSTEMCIRCUIT TESTSCLEARANCE WARNING ECU POWER SOURCE CIRCUITPROCEDURE
2013 Toyota Sequoia Limited, 5.7L Eng VIN W

Clearance Warning ECU Power Source Circuit: Procedure

2013 Toyota Sequoia Limited, 5.7L Eng VIN WSECTION Procedure
  1. INSPECT FUSE (ECU-IG No. 1) 
    1. Remove the ECU-IG No. 1 fuse from the main body ECU.
      Fig 1: Identifying ECU-IG No. 1 Fuse
      GTY247137Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      ECU-IG No. 1 fuse Always Below 1 Ω

    NG → REPLACE FUSE 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (DRIVE MONITOR SWITCH - BATTERY AND BODY GROUND) 
    1. Disconnect the J2 drive monitor switch connector.
      Fig 2: Measuring Voltage Of Drive Monitor Switch Connector
      GTY240523Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      J2-7 (IG) - Body ground Ignition switch ON 11 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. INSPECT DRIVE MONITOR SWITCH 
    1. Remove the drive monitor switch. Refer to REMOVAL .
      Fig 3: Measuring Resistance Of Drive Monitor Switch Connector
      GTY207692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      7 (IG) - 8 (SK) Clearance sonar main switch ON Below 1 Ω
      Clearance sonar main switch OFF 10 kΩ or higher

    NG → See step   5 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - DRIVE MONITOR SWITCH) 
    1. Disconnect the H43 clearance warning ECU connector.
      Fig 4: Measuring Resistance Of Clearance Warning ECU & Drive Monitor Switch Harness & Connectors
      GTY246676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the J2 drive monitor switch connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H43-10 (IG) - J2-8 (SK) Always Below 1 Ω
      H43-10 (IG) - Body ground Always 10 kΩ or higher
      H43-21 (E) - Body ground Always Below 1 Ω

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   6 

  5. REPLACE DRIVE MONITOR SWITCH. Refer to  REMOVAL 
  6. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE  
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.