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Code C1223

Symptoms

• ABS warning light on

• Poor braking performance

• ABS system not functioning

Common Causes

• Faulty ABS wheel speed sensor

• Damaged wiring or connectors

• Defective ABS control module

Glossary

ABS: Anti-lock Braking System

OBD-II: On-Board Diagnostics, second generation

Related Codes

• C1221

• C1222

Laymans terms

This code means that something is wrong with the car's braking system, like when the brakes don't work as they should.

Explanation

The C1223 code is related to the ABS (Anti-lock Braking System) malfunction.

Technical description

C1223 is a diagnostic trouble code indicating a malfunction in the ABS control module, often related to the ABS wheel speed sensor or the module itself not receiving or processing signals correctly.

Diagnosis steps

• Check ABS warning light status

• Inspect wheel speed sensors and wiring

• Test ABS control module for faults

Repair procedures

• Replace faulty wheel speed sensor

• Repair or replace damaged wiring

• Replace ABS control module if defective

Tools required

• OBD-II scanner

• Multimeter

• Wheel speed sensor tool

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford Focus

Preventive measures

• Regularly inspect ABS components

• Keep sensor areas clean

• Check wiring for damage

Error code type

ABS System Issue

User experience recommendations

• Have brakes inspected regularly

• Address ABS warning lights promptly

Warranty information

Check vehicle warranty for coverage on ABS components

Historical data

C1223 is a common code in vehicles with ABS systems, often due to sensor or wiring issues.

Urgency level

Moderate – This code affects braking performance and should be addressed soon.

Legal and safety notice

Driving with a malfunctioning ABS system may be unsafe and could lead to legal implications if not addressed.

Testing conditions

• Vehicle stationary

• Ignition on

Component location

ABS control module is typically located near the engine compartment or under the dashboard.

FAQs

Q: Can I drive with a C1223 code?
A: It's not recommended as it affects the braking system, which is crucial for safety.

Q: How do I reset the ABS light?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.

Last updated: Apr 21, 2026 • Source: internal database
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