C0207 critical

Autonomous Emergency Braking System Malfunction

The C0207 code means the vehicle's onboard diagnostic system has detected: Autonomous Emergency Braking System Malfunction. This is a critical severity code.

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Keep driving?: Yes, but fix soon
DIY difficulty: hard
Estimated cost: $100 - $2,000 (parts and labor)

Read ABS Codes

BlueDriver Bluetooth Pro Scanner

Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.

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Read ABS Codes

LAUNCH CRP123X (Reads ABS + Chassis)

Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.

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Common Symptoms

AEB system warning on dashboard
Forward collision warning disabled
Pre-collision braking not available
Sensor blocked or system fault message
Multiple ADAS warning lights on

Probable Causes (Ranked by Likelihood)

Forward-facing camera or radar sensor obstructed Very High
Camera or radar sensor out of calibration High
AEB control module software error Moderate
Camera or radar unit hardware failure Low

Step-by-Step Diagnostic Procedure

Clean windshield camera area and front radar sensor
Scan AEB system for DTCs
Check for recent windshield replacement affecting camera
Verify camera and radar sensor calibration
Check for AEB module software updates

Frequently Asked Questions

What triggers AEB system faults?

The most common trigger is a dirty windshield blocking the camera view or debris on the front radar sensor. Windshield replacement without proper camera recalibration is another frequent cause.

Does windshield replacement affect AEB?

Yes. After windshield replacement, the forward-facing camera must be recalibrated using specialized equipment. Without calibration, the AEB and other ADAS features will not function correctly.

How much does AEB calibration cost?

ADAS camera and radar calibration typically costs $200 to $500. It requires specialized targets and equipment, and is usually performed at a dealer or certified calibration center.