Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA20254RUNNER SR5, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASINTUITIVE PARKING ASSIST SYSTEM - DIAGNOSTIC CODES, CIRCUIT TESTS & SYMPTOM TESTSINTUITIVE PARKING ASSIST 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 U0129-87: LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE MISSING MESSAGE; DTC U0131-87: LOST COMMUNICATION WITH POWER STEERING CONTROL MODULE MISSING MESSAGE; DTC U0137-87: LOST COMMUNICATION WITH TRAILER BRAKE CONTROL MODULE MISSING MESSAGE; DTC U0140-87: LOST COMMUNICATION WITH BODY CONTROL MODULE MISSING MESSAGE; DTC U0155-87: LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) 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 U0233-87: LOST COMMUNICATION WITH SIDE OBSTACLE DETECTION CONTROL MODULE "B" MISSING MESSAGE; DTC U023B-87: LOST COMMUNICATION WITH IMAGE PROCESSING MODULE "B" MISSING MESSAGE; DTC U0265-87: LOST COMMUNICATION WITH IMAGE PROCESSING SENSOR A MISSING MESSAGE; DTC U0293-87: LOST COMMUNICATION WITH HYBRID POWERTRAIN CONTROL MODULE MISSING MESSAGE; DTC U1103-87: LOST COMMUNICATION WITH STOP AND START CONTROL MODULE MISSING MESSAGE; DTC U1106-87: LOST COMMUNICATION WITH ELECTRIC PARKING BRAKE MODULE MISSING MESSAGE [12/2024 - ]PROCEDURE
2025 Toyota 4Runner SR5, 4WD
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 U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0131-87: Lost Communication With Power Steering Control Module Missing Message; DTC U0137-87: Lost Communication With Trailer Brake Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) 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 U0233-87: Lost Communication with Side Obstacle Detection Control Module "B" Missing Message; DTC U023B-87: Lost Communication with Image Processing Module "B" Missing Message; DTC U0265-87: Lost Communication with Image Processing Sensor A Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message [12/2024 - ]: Procedure
2025 Toyota 4Runner SR5, 4WDSECTION Procedure
- CLEAR DTC
Result:
NEXT
See step 2
- CHECK DTC OUTPUT
- Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
Result
Result Proceed to U0100-87, U0114-87, U0126-87, U0129-87, U0131-87, U0137-87, U0140-87, U0155-87, U0163-87, U0164-87 U0233-87, U023B-87, U0265-87, U0293-87, U1103-87 or U1106-87 is output A DTCs are not output B None of the above conditions are met C
Result:
A
REFER TO "CAN COMMUNICATION SYSTEM"
Result:
B
USE SIMULATION METHOD TO CHECK
Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]
Result:
C
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2024 - ]
- Check for DTCs.
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.