C1207 GMC Code - Left Rear Wheel Speed Sensor Circuit Range Performance
Quick Answer
The C1207 GMC code indicates a problem with the left rear wheel speed sensor circuit's range performance. Common causes include Damaged or corroded wiring in the left rear wheel speed sensor circuit, Faulty left rear wheel speed sensor, Poor electrical connection at the sensor or ECM. 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
- C1207 GMC indicates Left Rear Wheel Speed Sensor Circuit Range Performance.
- Common causes
- Common causes include Damaged or corroded wiring in the left rear wheel speed sensor circuit, Faulty left rear wheel speed sensor, Poor electrical connection at the sensor or ECM.
- 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 C1207 GMC Description
The C1207 GMC code indicates a problem with the left rear wheel speed sensor circuit's range performance. The wheel speed sensor is a crucial component of the vehicle's anti-lock braking system (ABS) and traction control system. It measures the rotational speed of the wheel and sends this information to the vehicle's electronic control module (ECM). The ECM uses this data to determine if a wheel is locking up during braking or losing traction, allowing it to adjust braking pressure accordingly to prevent skidding.
Common Causes of C1207 GMC
- Damaged or corroded wiring in the left rear wheel speed sensor circuit
- Faulty left rear wheel speed sensor
- Poor electrical connection at the sensor or ECM
- ECM software or hardware issues
- Physical damage to the wheel speed sensor (e.g., debris or impact damage)
Symptoms of C1207 GMC
- ABS warning light illuminated on the dashboard
- Traction control system malfunction warning
- Uneven braking or pulsating brake pedal
- Increased stopping distance
- Loss of traction on slippery surfaces
How to Fix C1207 GMC
- Begin by visually inspecting the wiring and connectors in the left rear wheel speed sensor circuit for any signs of damage or corrosion. Repair or replace any damaged components.
- Test the left rear wheel speed sensor using a multimeter to check for proper resistance values. Replace the sensor if it is faulty.
- Check the electrical connections at the sensor and ECM to ensure they are secure and free of debris. Clean or repair any poor connections.
- Clear the diagnostic trouble codes from the vehicle's ECM using a scan tool and test drive the vehicle to verify that the issue has been resolved.
- If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the circuit range performance issue.
Cost to Fix C1207 GMC
The typical repair costs for addressing a left rear wheel speed sensor circuit range performance issue can vary depending on the specific cause of the problem. In general, replacing a faulty wheel speed sensor can cost between $100 and $200 for the part alone. Labor costs for diagnosis and repair can range from $100 to $300, depending on the shop's hourly rates and the complexity of the repair process. It's advisable to consult with a trusted auto repair shop to obtain a more accurate estimate based on your vehicle's make and model.
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Frequently Asked Questions about C1207 GMC Code
1. What does the OBDII code C1207 mean for a GMC vehicle?
C1207 indicates an issue with the Left Rear Wheel Speed Sensor Circuit, specifically related to its range or performance.
2. What are common symptoms of the C1207 code on a GMC?
Common symptoms include ABS warning light activation, traction control issues, unresponsive ABS system, or erratic braking behavior.
3. What causes the C1207 code to appear on a GMC?
Typical causes include a faulty left rear wheel speed sensor, damaged wiring or connectors, corrosion in the circuit, or issues with the ABS module.
4. Can I continue driving with the C1207 code on my GMC?
While the vehicle may still be drivable, the ABS and traction control systems may not function properly, which can compromise safety in certain conditions.
5. How do I diagnose the C1207 code on my GMC?
Diagnosis involves inspecting the left rear wheel speed sensor, checking for damaged wiring or corroded connectors, and testing the sensor's resistance with a multimeter.
6. How do I fix the C1207 code on a GMC vehicle?
Repairs may include replacing the faulty wheel speed sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the ABS module if needed.
7. How much does it cost to fix the C1207 code on a GMC?
Repair costs vary but typically range from $100 to $300, depending on whether the sensor or wiring needs replacement.
8. Can a bad wheel bearing cause the C1207 code on a GMC?
Yes, a worn or damaged wheel bearing can cause incorrect readings from the wheel speed sensor, leading to the C1207 code.
9. Will clearing the C1207 code fix the problem?
Clearing the code with a scan tool will remove the warning temporarily, but the underlying issue must be resolved to prevent it from returning.
10. What tools are needed to fix the C1207 code on a GMC?
Common tools include a diagnostic scan tool, multimeter, jack and jack stands, and basic hand tools for removing and replacing the sensor or wiring.
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