C1571 Lexus Code - Vehicle Speed Signal Malfunction
Quick Answer
The C1571 diagnostic trouble code (DTC) for Lexus vehicles indicates a Vehicle Speed Signal Malfunction. Common causes include Faulty speed sensor, Damaged wiring or connectors related to the speed sensor, Corrosion or debris affecting the speed 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
- C1571 Lexus indicates Vehicle Speed Signal Malfunction.
- Common causes
- Common causes include Faulty speed sensor, Damaged wiring or connectors related to the speed sensor, Corrosion or debris affecting the speed 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.
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Code C1571 Lexus Description
The C1571 diagnostic trouble code (DTC) for Lexus vehicles indicates a Vehicle Speed Signal Malfunction. This code is triggered when the vehicle's onboard computer system detects an issue with the signal that communicates the speed of the vehicle. The vehicle speed signal is crucial for various systems in the vehicle, including the transmission, ABS brakes, traction control, and cruise control. When this signal malfunctions, it can lead to a range of performance issues and potential safety concerns.
Common Causes of C1571 Lexus
- Faulty speed sensor.
- Damaged wiring or connectors related to the speed sensor.
- Corrosion or debris affecting the speed sensor.
- Issues with the vehicle's computer system.
- Mechanical issues affecting the speed sensor's operation.
Symptoms of C1571 Lexus
- Inaccurate speedometer readings or erratic speedometer behavior.
- ABS warning light or traction control warning light illuminated on the dashboard.
- Transmission shifting irregularly or harshly.
- Cruise control not engaging or disengaging unexpectedly.
- Loss of power or acceleration issues.
How to Fix C1571 Lexus
- Diagnose the issue by connecting a scan tool to retrieve the specific trouble code and perform a visual inspection of the speed sensor and related components.
- Test the speed sensor using a multimeter to check for proper resistance and voltage output.
- Replace the speed sensor if it is found to be faulty, ensuring proper installation and connection.
- Inspect and repair any damaged wiring or connectors related to the speed sensor.
- Clear the DTC from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix C1571 Lexus
The typical repair costs for a Vehicle Speed Signal Malfunction can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing a speed sensor can cost between $100 and $300, including parts and labor. Additional costs may apply if there are other underlying issues that need to be addressed. It's recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can range from $80 to $150 per hour, so the total cost may vary.
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Frequently Asked Questions about C1571 Lexus Code
1. What does the OBDII code C1571 mean on a Lexus?
C1571 indicates a "Vehicle Speed Signal Malfunction," meaning the vehicle's speed sensor is not transmitting accurate data to the control modules.
2. What are the common symptoms of code C1571 in a Lexus?
Symptoms may include erratic speedometer readings, ABS or traction control warning lights, and issues with cruise control operation.
3. What causes the C1571 code to appear in a Lexus?
Common causes include a faulty vehicle speed sensor, damaged wiring or connectors, or issues with the ABS or traction control system.
4. Can I drive my Lexus with the C1571 code active?
While the car may still be drivable, safety features like ABS or traction control may not work properly, so driving should be done cautiously and repairs should be prioritized.
5. How can I fix the C1571 code on my Lexus?
Repairs typically involve inspecting and replacing the speed sensor, repairing damaged wiring, or addressing issues in the ABS module.
6. How do I diagnose the C1571 code in a Lexus?
Use an OBDII scanner to confirm the code, visually inspect the speed sensor and wiring, and test the sensor's signal output with a multimeter if necessary.
7. Is the C1571 code related to the ABS system in a Lexus?
Yes, the code can be related to the ABS system, as the vehicle speed signal is often shared with ABS and traction control modules.
8. How much does it cost to fix the C1571 code on a Lexus?
The cost can range from $150 to $400, depending on whether the issue is with the speed sensor, wiring, or ABS module.
9. Can a faulty wheel speed sensor trigger the C1571 code on a Lexus?
Yes, a faulty or failing wheel speed sensor can contribute to the C1571 code if it affects the vehicle speed signal.
10. Will clearing the C1571 code fix the problem on my Lexus?
Clearing the code without addressing the underlying issue will only temporarily remove the warning and the code is likely to return.
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