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)GENERAL INFORMATIONDTC INDEXDTC INDEX (1 OF 2)ADVANCED DRIVER ASSISTANCE SYSTEM DTCSFRONT RADAR SENSOR SYSTEM
2025 Toyota 4Runner SR5, 4WD
Front Radar Sensor System
2025 Toyota 4Runner SR5, 4WDSECTION Front Radar Sensor System
FRONT RADAR SENSOR SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| C1A11-00 | Front Radar Sensor Optical Axis Misalignment Malfunction |
| C1A8C-04 | Main Microcomputer in Front Radar Sensor System Internal Failure |
| C1A8C-46 | Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure |
| C1A8D-1C | Power Supply Circuit in Front Radar Sensor Circuit Voltage Out of Range |
| C1A90-00 | Malfunction of Millimeter-wave Circuit in Front Radar Sensor |
| U0104-87 | Lost Communication with Cruise Control Module Missing Message |
| U130C-51 | Software Incompatibility with Image Processing Module "A" Not Programmed |
| U130C-57 | Software Incompatibility with Image Processing Module "A" Invalid/Incompatible Software Component |
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.