C1223 Code - Left Rear Wheel Speed Sensor Input Signal Is Zero
Quick Answer
The C1223 diagnostic trouble code indicates that the left rear wheel speed sensor input signal is zero. Common causes include Faulty left rear wheel speed sensor, Damaged or corroded sensor wiring or connectors, Absent or weak signal from the sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1223 indicates Left Rear Wheel Speed Sensor Input Signal Is Zero.
- Common causes
- Common causes include Faulty left rear wheel speed sensor, Damaged or corroded sensor wiring or connectors, Absent or weak signal from the sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code C1223 Description
The C1223 diagnostic trouble code indicates that the left rear wheel speed sensor input signal is zero. In modern vehicles, the wheel speed sensors are crucial components of the anti-lock braking system (ABS) and traction control system. These sensors monitor the speed of each wheel and send this information to the vehicle's electronic control unit (ECU) to optimize braking performance and maintain traction.
Common Causes of C1223
- Faulty left rear wheel speed sensor.
- Damaged or corroded sensor wiring or connectors.
- Absent or weak signal from the sensor.
- Issues with the ABS or traction control module.
- Problems with the tone ring or reluctor wheel.
Symptoms of C1223
- ABS warning light illuminates on the dashboard.
- Traction control warning light is activated.
- Increased stopping distance during braking.
- Vehicle pulls to one side during braking.
- Loss of traction on slippery surfaces.
How to Fix C1223
- Begin by visually inspecting the left rear wheel speed sensor, wiring, and connectors for any visible damage or corrosion.
- Test the sensor using a multimeter to check for continuity and proper functioning.
- If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
- Clear the diagnostic trouble codes using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnosis may be required to determine if there are underlying issues with the ABS or traction control system components.
Cost to Fix C1223
The cost of repairing a left rear wheel speed sensor input signal issue can vary depending on the vehicle make and model, as well as the specific cause of the problem. On average, the cost of a new wheel speed sensor ranges from $50 to $200, with additional labor costs of around $100 to $200 for installation. Overall, the total repair cost for this issue could range from $150 to $400. It's important to note that labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple sources for an accurate estimate.
Need more information about the C1223 code?
Need more information on how to fix the C1223 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1223 code diagnosed by a professional: Find a repair shop in your area
Code C1223 Information for Specific Makes
- C1223 Buick — Left Rear Wheel Speed Sensor Input Signal Is Zero
- C1223 Cadillac — Left Rear Wheel Speed Sensor Input Signal Is Zero
- C1223 Chevrolet — Left Rear Wheel Speed Sensor Input Signal Is Zero
- C1223 Ford — Brake Light Warning Output Circuit Failure
- C1223 GMC — Left Rear Wheel Speed Sensor Input Signal Is Zero
- C1223 Lexus — ABS Control System Malfunction
- C1223 Lincoln — Brake Light Warning Output Circuit Failure
- C1223 Mercury — Brake Light Warning Output Circuit Failure
- C1223 Pontiac — Left Rear Wheel Speed Sensor Input Signal Is Zero
- C1223 Scion — ABS Control System Malfunction
- C1223 Toyota — ABS Control System Malfunction
Frequently Asked Questions about C1223 Code
What does the OBDII code C1223 mean?
The OBDII code C1223 indicates that the left rear wheel speed sensor input signal is zero, meaning the vehicle's system is not receiving any data from the left rear wheel speed sensor.
What are the common symptoms of a C1223 code?
Common symptoms include the ABS warning light illuminating on the dashboard, erratic braking behavior, and potential loss of anti-lock braking system (ABS) functionality.
What causes the C1223 code to trigger?
The C1223 code can be triggered by a faulty left rear wheel speed sensor, damaged wiring or connectors, or issues with the ABS control module.
How can I diagnose the C1223 code?
To diagnose the C1223 code, check the left rear wheel speed sensor's wiring and connectors for damage, test the sensor's resistance and output signal, and use a scan tool to monitor the wheel speed data while driving.
What should I do if the left rear wheel speed sensor appears to be faulty?
If the left rear wheel speed sensor is faulty, it should be replaced with a new sensor, and the system should be re-tested to ensure the issue is resolved.
Can I drive my vehicle with a C1223 code?
While you can drive your vehicle with a C1223 code, it is not advisable as it may affect braking performance and safety due to the malfunctioning ABS system.
How much does it typically cost to repair a C1223 code?
Repair costs for a C1223 code can vary widely, but replacing a wheel speed sensor generally ranges from $100 to $300, including parts and labor.
Are there any temporary fixes for the C1223 code?
Temporary fixes may include checking and securing the wiring and connectors, but the best solution is to replace the faulty sensor to ensure proper functionality.
What tools do I need to fix the C1223 code?
To fix the C1223 code, you typically need basic hand tools, a multimeter for testing electrical components, and possibly a scan tool to clear the code after repairs.
Will clearing the code fix the problem?
Clearing the C1223 code will not fix the underlying issue. It is essential to diagnose and repair the cause of the code before clearing it to ensure the problem does not reoccur.
Discuss the causes and fixes for C1223 OBDII Code
Code C1223 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.