C1237 Lincoln Code - Speed Wheel Rear Input Signal Missing
Quick Answer
The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Rear Anti-Lock Brake Sensor. Common causes include Faulty Rear ABS Sensor, Rear ABS Sensor harness is open or shorted, Rear ABS Sensor circuit poor electrical connection. 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 Lincoln indicates Speed Wheel Rear Input Signal Missing.
- Common causes
- Common causes include Faulty Rear ABS Sensor, Rear ABS Sensor harness is open or shorted, Rear ABS Sensor circuit poor electrical connection.
- 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.
Code C1237 Lincoln Description
What are the Possible Causes of the DTC C1237 Lincoln?
- Faulty Rear ABS Sensor
- Rear ABS Sensor harness is open or shorted
- Rear ABS Sensor circuit poor electrical connection
- Faulty Wheel Speed Sensor
- Wheel bearing
How to Fix the DTC C1237 Lincoln?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
2003-2004 Lincoln Aviator Factory Service Bulletin OBDII Code C1237
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1237 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about C1237 Lincoln Code
1. What does the OBDII code C1237 mean on a Lincoln?
The code C1237 indicates that the rear wheel speed sensor input signal is missing or not being detected by the ABS module.
2. What are common symptoms of a C1237 code on a Lincoln?
Common symptoms include the ABS warning light being illuminated, loss of ABS functionality, and potentially reduced traction control performance.
3. What causes the C1237 code to appear?
The most common causes are a faulty rear wheel speed sensor, damaged sensor wiring, a dirty or damaged tone ring, or a malfunctioning ABS module.
4. How can I diagnose a C1237 code on my Lincoln?
Start by inspecting the rear wheel speed sensor and its wiring for damage or disconnection. Use a scan tool to monitor live wheel speed data and confirm if the sensor is sending a signal.
5. Can I drive my Lincoln with the C1237 code active?
Yes, but be cautious. While the vehicle will still operate, the ABS and traction control systems may not function, increasing the risk of skidding or loss of control in slippery conditions.
6. How do I fix the C1237 code on my Lincoln?
Repairs may include replacing the rear wheel speed sensor, repairing damaged wiring, cleaning or replacing the tone ring, or addressing ABS module issues.
7. How much does it cost to repair a C1237 code?
Replacing a rear wheel speed sensor typically costs $100–$300, including parts and labor. Costs may vary based on additional repairs needed.
8. Can a dirty tone ring cause the C1237 code?
Yes, a dirty or damaged tone ring can prevent the sensor from reading wheel speed accurately, triggering the C1237 code.
9. Does a C1237 code require ABS module replacement?
Not always. ABS module replacement is only necessary if the module itself is determined to be faulty after sensor and wiring issues are ruled out.
10. Can I reset the C1237 code without fixing the problem?
You can clear the code with a scan tool, but it will likely return unless the underlying issue is resolved.
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