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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 TESTSFRONT CLEARANCE SONAR SENSOR LH CIRCUITPROCEDURE
2013 Toyota Sequoia Limited, 5.7L Eng VIN W

Front Clearance Sonar Sensor LH Circuit: Procedure

2013 Toyota Sequoia Limited, 5.7L Eng VIN WSECTION Procedure
  1. REPLACE FRONT CORNER NO. 1 ULTRASONIC SENSOR LH 
    1. Replace the front corner No. 1 ultrasonic sensor with a normally functioning sensor. Refer to REMOVAL .

    NEXT: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (FRONT CORNER SENSOR LH - FRONT CORNER SENSOR RH) 
    1. Disconnect the C1 and B1 front corner No. 1 ultrasonic sensor connectors.
      Fig 1: Measuring Resistance Of Front Corner No. 1 Ultrasonic Sensors Harness & Connectors
      GTY222996Courtesy 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
      C1-1 (BI) - B1-2 (BO) Always Below 1 Ω
      C1-3 (SI) - B1-4 (SO)
      C1-5 (EI) - B1-6 (EO)
      C1-1 (BI) - Body ground Always 10 kΩ or higher
      C1-3 (SI) - Body ground
      C1-5 (EI) - Body ground

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   3 

  3. 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.