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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 TESTSINDICATOR CIRCUITPROCEDURE
2013 Toyota Sequoia Limited, 5.7L Eng VIN W

Indicator 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 (ACCESSORY METER ASSEMBLY - BATTERY AND BODY GROUND) 
    1. Disconnect the I22 accessory meter assembly connector.
      Fig 2: Measuring Voltage Of Accessory Meter Assembly Harness & Connectors
      GTY246674Courtesy 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
      I22-23 (IG) - Body ground Ignition switch ON 11 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY - CLEARANCE WARNING ECU) 
    1. Disconnect the H43 clearance warning ECU connector.
      Fig 3: Measuring Resistance Of Accessory Meter Assembly & Clearance Warning ECU Harness & Connector
      GTY246652Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the I22 accessory meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H43-15 (L1) - I22-3 (RR) Always Below 1 Ω
      H43-16 (L2) - I22-4 (FR)
      H43-17 (L3) - I22-7 (RL)
      H43-18 (L4) - I22-8 (FL)
      H43-19 (L5) - I22-5 (BK)
      H43-20 (L6) - I22-6 (OP)
      H43-15 (L1) - Body ground Always 10 kΩ or higher
      H43-16 (L2) - Body ground
      H43-17 (L3) - Body ground
      H43-18 (L4) - Body ground
      H43-19 (L5) - Body ground
      H43-20 (L6) - Body ground

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. REPLACE ACCESSORY METER ASSEMBLY 
    1. Replace the accessory meter assembly with a normally functioning or new accessory meter assembly. Refer to REMOVAL .
    2. Check that the accessory meter indicator operates normally.

      OK

      Accessory meter indicator operates normally.

    NG → See step   5 

    OK → END (ACCESSORY METER IS DEFECTIVE) 

  5. 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.