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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA20254RUNNER SR5, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASFRONT CAMERA SYSTEM - DIAGNOSTIC CODES & CIRCUIT TESTSFRONT CAMERA SYSTEMDTC U0100-87: LOST COMMUNICATION WITH ECM/PCM "A" MISSING MESSAGE; DTC U0101-87: LOST COMMUNICATION WITH TCM 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 "A" MISSING MESSAGE; DTC U0131-87: LOST COMMUNICATION WITH POWER STEERING CONTROL MODULE "A" MISSING MESSAGE; DTC U0137-87: LOST COMMUNICATION WITH TRAILER BRAKE CONTROL MODULE MISSING MESSAGE; DTC U0139-87: LOST COMMUNICATION WITH SUSPENSION CONTROL MODULE "B" 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 U1106-87: LOST COMMUNICATION WITH ELECTRIC PARKING BRAKE MODULE MISSING MESSAGE [12/2024 - ]DESCRIPTION
2025 Toyota 4Runner SR5, 4WD
DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM 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 "A" Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module "A" Missing Message; DTC U0137-87: Lost Communication With Trailer Brake Control Module Missing Message; DTC U0139-87: Lost Communication with Suspension Control Module "B" 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 U1106-87: Lost Communication with Electric Parking Brake Module Missing Message [12/2024 - ]: Description
2025 Toyota 4Runner SR5, 4WDSECTION Description
When a malfunction is detected between various ECUs and sensors, these DTCs are stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Priority |
|---|---|---|---|---|---|
| U0100-87 | Lost Communication with ECM/PCM "A" Missing Message | When a communication error between forward recognition camera and ECM is detected | CAN communication system | Front Recognition Camera | B |
| U0101-87 | Lost Communication with TCM Missing Message | When a communication error between forward recognition camera and TCM is detected | CAN communication system | Front Recognition Camera | B |
| U0114-87 | Lost Communication with Four-Wheel Drive Clutch Control Module Missing Message | When a communication error between forward recognition camera and 4 wheel drive control ECU is detected | CAN communication system | Front Recognition Camera | B |
| U0126-87 | Lost Communication with Steering Angle Sensor Module Missing Message | When a communication error between forward recognition camera and steering sensor is detected | CAN communication system | Front Recognition Camera | B |
| U0129-87 | Lost Communication with Brake System Control Module "A" Missing Message | for Gasoline Model:
except Gasoline Model:
|
CAN communication system | Front Recognition Camera | B |
| U0131-87 | Lost Communication with Power Steering Control Module "A" Missing Message | When a communication error between forward recognition camera and power steering ECU (rack and pinion power steering gear assembly) is detected | CAN communication system | Front Recognition Camera | B |
| U0137-87 | Lost Communication With Trailer Brake Control Module Missing Message | When a communication error between forward recognition camera and trailer brake control ECU (brake control with bracket relay) is detected | CAN communication system | Front Recognition Camera | B |
| U0139-87 | Lost Communication with Suspension Control Module "B" Missing Message | When a communication error between forward recognition camera and stabilizer control ECU is detected | CAN communication system | Front Recognition Camera | B |
| U0140-87 | Lost Communication with Body Control Module Missing Message | When a communication error between forward recognition camera and main body ECU (multiplex network body ECU) detected | CAN communication system | Front Recognition Camera | B |
| U0155-87 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message | When a communication error between forward recognition camera and combination meter assembly is detected | CAN communication system | Front Recognition Camera | B |
| U1106-87 | Lost Communication with Electric Parking Brake Module Missing Message | for Gasoline Model:
except Gasoline Model:
|
CAN communication system | Front Recognition Camera | B |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.