C1237 Ford Code - Speed Wheel Rear Input Signal Missing
Quick Answer
The C1237 Ford diagnostic code indicates that there is a problem with the speed wheel rear input signal, specifically that the signal is missing. Common causes include Faulty speed sensor, Damaged wiring or connectors, Corrosion on the sensor or connectors. 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
- C1237 Ford indicates Speed Wheel Rear Input Signal Missing.
- Common causes
- Common causes include Faulty speed sensor, Damaged wiring or connectors, Corrosion on the sensor or connectors.
- 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.
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Code C1237 Ford Description
The C1237 Ford diagnostic code indicates that there is a problem with the speed wheel rear input signal, specifically that the signal is missing. In vehicles equipped with ABS (Anti-lock Braking System) and traction control systems, the speed wheel sensors are crucial components that provide data on the speed of each wheel to the vehicle's computer. This information is used to monitor wheel speed and make adjustments to the braking system as needed to prevent wheel lock-up and skidding.
Common Causes of C1237 Ford
- Faulty speed sensor
- Damaged wiring or connectors
- Corrosion on the sensor or connectors
- ABS module malfunction
- Electrical issues in the system
Symptoms of C1237 Ford
- ABS warning light illuminated on the dashboard
- Traction control system not functioning properly
- Increased braking distance
- Vehicle stability issues
- Wheel lock-up during braking
How to Fix C1237 Ford
- Diagnose the issue by connecting a scan tool to retrieve the specific code and identify the affected wheel sensor.
- Inspect the speed sensor, wiring, and connectors for any visible damage or corrosion.
- Replace the faulty speed sensor if necessary, ensuring proper installation and connection.
- Clear the diagnostic trouble codes and test drive the vehicle to verify that the issue has been resolved.
- If the problem persists, further diagnostics may be required to check the ABS module and other related components.
Cost to Fix C1237 Ford
The typical repair costs for addressing a missing speed wheel rear input signal can vary depending on the specific cause of the issue and the extent of repairs needed. In general, replacing a faulty speed sensor can cost between $100 and $300, with additional costs for labor and any necessary parts or components. Overall, the total repair costs for this issue could range from $150 to $500 or more, depending on the complexity of the repair and the rates charged by the auto repair shop. It's recommended to obtain quotes from local automotive service providers to get a more accurate estimate based on your vehicle's make and model.
Tech Notes for C1237 Ford
2002-2004 Ford Explorer Factory Service Bulletin OBDII Code C1237
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Frequently Asked Questions about C1237 Ford Code
1. What are the common symptoms of OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- Common symptoms include the ABS light illuminating on the dashboard, traction control system malfunction, and potential loss of stability control.
2. What are the possible causes of OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- The code can be triggered by a faulty rear wheel speed sensor, damaged wiring or connectors, sensor alignment issues, or internal module faults.
3. How can I diagnose the OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- Diagnosis involves scanning the ABS module for trouble codes, conducting a visual inspection of wiring and connectors, testing the rear wheel speed sensor, and verifying sensor alignment.
4. Can I continue driving with OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing) present?
- It is not recommended to continue driving with this code present, as it can affect the vehicle's stability control and ABS functionality.
5. How can I repair OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- Repair options include replacing the faulty rear wheel speed sensor, repairing damaged wiring or connectors, adjusting sensor alignment, or addressing internal module issues.
6. Are there any DIY tips for addressing OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- DIY enthusiasts can start by checking wiring connections, cleaning sensor connectors, and ensuring proper sensor alignment before considering sensor replacement.
7. How much does it typically cost to repair OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- The cost of repair can vary depending on the root cause, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.
8. Can extreme weather conditions trigger OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- Yes, extreme weather conditions such as heavy rain or snow can potentially affect the rear wheel speed sensor's performance and trigger the code.
9. Will resetting the trouble codes clear OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- Resetting the trouble codes may temporarily clear the code, but it is important to diagnose and address the underlying issue to prevent it from reoccurring.
10. Is it necessary to recalibrate the ABS system after repairing OBDII code C1237 Ford (Speed Wheel Rear Input Signal Missing)?
- It is recommended to perform an ABS system calibration or reset procedure after repairing the issue to ensure proper functionality and accurate sensor readings.
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