P1574 Code - ASCD Vehicle Speed Sensor
Quick Answer
The ASCD (Automatic Speed Control Device) vehicle speed sensor is a crucial component of the vehicle's cruise control system. Common causes include Faulty ASCD vehicle speed sensor, Damaged wiring or connectors in the sensor circuit, ECM software issues. 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
- P1574 indicates ASCD Vehicle Speed Sensor.
- Common causes
- Common causes include Faulty ASCD vehicle speed sensor, Damaged wiring or connectors in the sensor circuit, ECM software issues.
- 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 P1574 Description
The ASCD (Automatic Speed Control Device) vehicle speed sensor is a crucial component of the vehicle's cruise control system. When the P1574 diagnostic trouble code is triggered, it indicates a problem with the ASCD vehicle speed sensor. This sensor is responsible for detecting the speed of the vehicle and relaying that information to the engine control module (ECM) to help maintain a constant speed when cruise control is engaged.
Common Causes of P1574
- Faulty ASCD vehicle speed sensor
- Damaged wiring or connectors in the sensor circuit
- ECM software issues
- Corrosion or debris affecting sensor performance
- Mechanical damage to the sensor from road debris or impacts
Symptoms of P1574
- Inoperative cruise control system
- Cruise control system engaging intermittently
- Fluctuating speed while cruise control is engaged
- Check Engine Light illuminated
- Decreased fuel efficiency
How to Fix P1574
- Begin by diagnosing the issue using a scan tool to retrieve the specific trouble code and pinpoint the exact cause of the problem.
- Inspect the ASCD vehicle speed sensor and its wiring for any visible damage or corrosion. Replace any damaged components.
- Test the ASCD vehicle speed sensor using a multimeter to ensure it is functioning correctly.
- Clear the trouble code from the ECM memory and retest the cruise control system to verify that the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify any underlying issues with the ECM or other related components.
Cost to Fix P1574
The typical repair costs for addressing the ASCD vehicle speed sensor issue can range from $100 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may charge less. For a more accurate estimate, it's recommended to inquire with local auto repair shops.
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Code P1574 Information for Specific Makes
- P1574 Buick — Stop Lamp Switch Circuit
- P1574 Cadillac — Stop Lamp Switch Circuit
- P1574 Chevrolet — Stop Lamp Switch Circuit
- P1574 Ford — Stop Lamp Switch Circuit
- P1574 GMC — Stop Lamp Switch Circuit
- P1574 Infiniti — ASCD Vehicle Speed Sensor
- P1574 Nissan — ASCD Vehicle Speed Sensor
Frequently Asked Questions about P1574 Code
1. What are the common symptoms of OBDII code P1574 ASCD Vehicle Speed Sensor?
The common symptoms include issues with cruise control operation, erratic speedometer readings, and possible illumination of the Check Engine Light.
2. What is the main cause of OBDII code P1574 ASCD Vehicle Speed Sensor?
The main cause of this code is a malfunction in the ASCD (Automatic Speed Control Device) vehicle speed sensor.
3. How can I diagnose the ASCD Vehicle Speed Sensor issue causing code P1574?
Diagnosing the issue involves testing the vehicle speed sensor's electrical connections, checking for damage or corrosion, and potentially using a multimeter to measure sensor output.
4. Can a faulty vehicle speed sensor affect other vehicle systems?
Yes, a faulty vehicle speed sensor can affect various systems such as the cruise control, transmission shifting, and ABS operation.
5. Is it safe to continue driving with OBDII code P1574 ASCD Vehicle Speed Sensor active?
It is generally not recommended to drive with this code active, as it can lead to issues with speed-related functions and potentially impact vehicle safety.
6. What are some repair tips for fixing OBDII code P1574 ASCD Vehicle Speed Sensor?
Repair tips include checking and replacing the vehicle speed sensor if necessary, ensuring proper electrical connections, and clearing the code after repairs are completed.
7. Can a DIY enthusiast address OBDII code P1574 ASCD Vehicle Speed Sensor on their own?
Depending on the individual's experience and tools available, DIY enthusiasts may be able to address this code by following diagnostic steps and replacing the faulty components.
8. How much does it typically cost to repair OBDII code P1574 ASCD Vehicle Speed Sensor at a repair shop?
The cost of repairing this code can vary depending on the shop's labor rates, the extent of the issue, and whether any parts need replacement. It's advisable to get estimates from different shops.
9. Are there any preventive measures to avoid OBDII code P1574 ASCD Vehicle Speed Sensor in the future?
Regular maintenance, including checking and cleaning electrical connections, can help prevent issues with the ASCD vehicle speed sensor and potentially avoid triggering this code.
10. Will resetting the OBDII system clear the P1574 ASCD Vehicle Speed Sensor code permanently?
Resetting the system may clear the code temporarily, but if the underlying issue with the ASCD vehicle speed sensor is not addressed, the code is likely to reappear.
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