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HOMESERVICE MANUALSTOYOTA20254RUNNER SR5, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTGAUGES & INSTRUMENT PANELSMETER / GAUGE SYSTEM - DIAGNOSTIC CODES (2 OF 2), SYMPTOM TESTS & CIRCUIT TESTSMETER / GAUGE SYSTEMDTC U0100-87: LOST COMMUNICATION WITH ECM/PCM "A" MISSING MESSAGE; DTC U0114-87: LOST COMMUNICATION WITH FOUR-WHEEL DRIVE CLUTCH CONTROL MODULE MISSING MESSAGE; DTC U0126-87: LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE MISSING MESSAGE; DTC U0127-87: LOST COMMUNICATION WITH TIRE PRESSURE MONITOR MODULE MISSING MESSAGE; DTC U0129-87: LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE MISSING MESSAGE; DTC U0131-87: LOST COMMUNICATION WITH POWER STEERING CONTROL MODULE MISSING MESSAGE; DTC U0132-87: LOST COMMUNICATION WITH SUSPENSION CONTROL MODULE "A" MISSING MESSAGE; DTC U0140-87: LOST COMMUNICATION WITH BODY CONTROL MODULE MISSING MESSAGE; DTC U0151-87: LOST COMMUNICATION WITH RESTRAINTS CONTROL MODULE MISSING MESSAGE; DTC U0163-87: LOST COMMUNICATION WITH NAVIGATION CONTROL MODULE MISSING MESSAGE; DTC U0164-87: LOST COMMUNICATION WITH HVAC CONTROL MODULE MISSING MESSAGE; DTC U0168-87: LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE MISSING MESSAGE; DTC U0230-87: LOST COMMUNICATION WITH REAR GATE MODULE MISSING MESSAGE; DTC U0233-87: LOST COMMUNICATION WITH SIDE OBSTACLE DETECTION CONTROL MODULE "B" MISSING MESSAGE; DTC U023A-87: LOST COMMUNICATION WITH IMAGE PROCESSING MODULE "A" MISSING MESSAGE; DTC U023B-87: LOST COMMUNICATION WITH IMAGE PROCESSING MODULE "B" MISSING MESSAGE; DTC U0293-87: LOST COMMUNICATION WITH HYBRID/EV POWERTRAIN CONTROL MODULE MISSING MESSAGE; DTC U1103-87: LOST COMMUNICATION WITH STOP AND START CONTROL MODULE MISSING MESSAGE; DTC U1110-87: LOST COMMUNICATION WITH INTUITIVE PARKING ASSIST MODULE MISSING MESSAGE; DTC U1112-87: LOST COMMUNICATION WITH COMBINATION SWITCH MODULE MISSING MESSAGE; DTC U1133-87: LOST COMMUNICATION WITH PMN MODULE MISSING MESSAGE [12/2024 - ]PROCEDURE
2025 Toyota 4Runner SR5, RWD

DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0114-87: Lost Communication with Four-Wheel Drive Clutch Control Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0127-87: Lost Communication with Tire Pressure Monitor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0132-87: Lost Communication with Suspension Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U0168-87: Lost Communication with Vehicle Security Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U0233-87: Lost Communication with Side Obstacle Detection Control Module "B" Missing Message; DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message; DTC U023B-87: Lost Communication with Image Processing Module "B" Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1112-87: Lost Communication with Combination Switch Module Missing Message; DTC U1133-87: Lost Communication with PMN Module Missing Message [12/2024 - ]: Procedure

2025 Toyota 4Runner SR5, RWDSECTION Procedure
  1. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      for Gasoline Model A
      for HEV Model B

    Result: 

    See step  3

    Result: 

    See step  2

  2. CHECK DTC OUTPUT 
    1. Check for DTCs.

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      U0100-87, U0114-87, U0126-87, U0127-87, U0129-87, U0131-87, U0132-87, U0140-87, U0151-87, U0163-87, U0164-87, U0168-87, U0230-87, U0233-87, U023A-87, U023B-87, U1103-87, U1110-87, U1112-87 or U1133-87 is output A
      DTCs are not output B
      None of the above conditions are met C

    Result: 

    GO TO CAN COMMUNICATION SYSTEM 

    REFER TO "CAN COMMUNICATION SYSTEM". Refer To CAN COMMUNICATION SYSTEM (FOR GASOLINE MODEL) , or Refer To CAN COMMUNICATION SYSTEM (FOR 1MOTOR-HEV MODEL)

    Result: 

    USE SIMULATION METHOD TO CHECK 

    Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]

    Result: 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer To  DIAGNOSTIC TROUBLE CODE CHART [12/2024 - ] 

  3. CHECK DTC OUTPUT 
    1. Check for DTCs.

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      U0100-87, U0114-87, U0126-87, U0127-87, U0129-87, U0131-87, U0132-87, U0140-87, U0151-87, U0163-87, U0164-87, U0168-87, U0230-87, U0233-87, U023A-87, U023B-87, U0293-87, U1110-87, U1112-87 or U1133-87 is output A
      DTCs are not output B
      None of the above conditions are met C

    Result: 

    GO TO CAN COMMUNICATION SYSTEM 

    REFER TO "CAN COMMUNICATION SYSTEM". Refer To CAN COMMUNICATION SYSTEM (FOR GASOLINE MODEL) , or Refer To CAN COMMUNICATION SYSTEM (FOR 1MOTOR-HEV MODEL)

    Result: 

    USE SIMULATION METHOD TO CHECK 

    Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]

    Result: 

    GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer To  DIAGNOSTIC TROUBLE CODE CHART [12/2024 - ] 

RENDER: 1.0x

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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.