C1420 Code - Acceleration Sensor Malfunction
Quick Answer
The C1420 diagnostic trouble code (DTC) refers to an Acceleration Sensor Malfunction. Common causes include Faulty acceleration sensor, Wiring or electrical issues affecting the sensor, Corrosion or damage to sensor connections. 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
- C1420 indicates Acceleration Sensor Malfunction.
- Common causes
- Common causes include Faulty acceleration sensor, Wiring or electrical issues affecting the sensor, Corrosion or damage to sensor connections.
- 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 C1420 Description
The C1420 diagnostic trouble code (DTC) refers to an Acceleration Sensor Malfunction. This code indicates that there is a problem with the vehicle's acceleration sensor, which is responsible for measuring the rate of change of velocity of the vehicle. The acceleration sensor plays a crucial role in the vehicle's stability control system, as it helps detect sudden changes in acceleration and deceleration. When the sensor malfunctions, it can lead to issues with the vehicle's stability control, traction control, and overall driving performance.
Common Causes of C1420
- Faulty acceleration sensor.
- Wiring or electrical issues affecting the sensor.
- Corrosion or damage to sensor connections.
- Software or programming issues with the stability control system.
- Physical damage to the sensor due to external factors.
Symptoms of C1420
- Traction control or stability control warning lights illuminated on the dashboard.
- Decreased handling and control of the vehicle, especially during sudden maneuvers.
- Loss of traction or stability on slippery road surfaces.
- Rough or jerky acceleration and deceleration.
- Loss of power or responsiveness in the vehicle's acceleration.
How to Fix C1420
- Diagnose the issue by connecting a diagnostic scanner to retrieve the specific fault code and identify the malfunctioning acceleration sensor.
- Inspect the wiring and connections related to the acceleration sensor for any signs of damage or corrosion.
- Test the sensor's functionality using a multimeter or oscilloscope to determine if it is sending accurate data.
- Replace the faulty acceleration sensor if necessary, following manufacturer's guidelines for installation.
- Clear the fault code and perform a test drive to ensure that the issue has been resolved and the warning lights are no longer illuminated.
Cost to Fix C1420
The typical repair costs for addressing an Acceleration Sensor Malfunction can vary depending on the vehicle make and model, the location of the repair shop, and the extent of the issue. In general, the cost of replacing an acceleration sensor can range from $200 to $500, including parts and labor. However, additional diagnostic time and labor rates may apply, with hourly rates typically ranging from $80 to $150. It is recommended to obtain a detailed quote from a reputable auto repair shop to get a more accurate estimate for this repair.
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Code C1420 Information for Specific Makes
- C1420 Chrysler — Rear Differential Control Circuit Current Performance
- C1420 Dodge — Rear Differential Control Circuit Current Performance
- C1420 Jeep — Rear Differential Control Circuit Current Performance
- C1420 Lexus — Acceleration Sensor Malfunction
- C1420 Scion — Acceleration Sensor Malfunction
- C1420 Toyota — Acceleration Sensor Malfunction
Frequently Asked Questions about C1420 Code
1. What are the common symptoms of OBDII code C1420 (Acceleration Sensor Malfunction)?
- Common symptoms include erratic acceleration, sudden loss of power, and the vehicle going into limp mode.
2. What are the possible causes of OBDII code C1420?
- Possible causes include a faulty acceleration sensor, damaged wiring or connectors, or issues with the sensor's calibration.
3. How can I diagnose the OBDII code C1420 on my vehicle?
- Diagnosing this code typically involves using a professional OBDII scanner to read the code and inspecting the acceleration sensor and related components for any visible damage.
4. Can I continue driving my vehicle with OBDII code C1420 present?
- It is not recommended to continue driving your vehicle with this code present, as it can lead to unsafe driving conditions and potential further damage to the vehicle.
5. What are some repair tips for addressing OBDII code C1420?
- Repair tips may include checking and repairing any damaged wiring or connectors, recalibrating or replacing the acceleration sensor, and clearing the code to see if the issue reoccurs.
6. Is it necessary to visit a mechanic to fix OBDII code C1420?
- While some DIY enthusiasts may be able to address this code themselves, it is generally recommended to visit a mechanic with experience in diagnosing and repairing acceleration sensor malfunctions.
7. How much does it typically cost to repair OBDII code C1420?
- Repair costs can vary depending on the extent of the issue and the specific repairs needed, but they may range from a few hundred to several hundred dollars.
8. Can a faulty acceleration sensor cause other issues in the vehicle?
- Yes, a faulty acceleration sensor can cause other issues such as poor engine performance, transmission problems, and compromised vehicle stability control systems.
9. Are there any preventative measures to avoid OBDII code C1420 from occurring?
- Regular maintenance checks, avoiding rough driving conditions, and promptly addressing any unusual symptoms can help prevent acceleration sensor malfunctions and related OBDII codes.
10. How long does it typically take to repair OBDII code C1420?
- The repair time can vary depending on the specific issue and the availability of parts, but it may take several hours to a full day to diagnose and repair the acceleration sensor malfunction.
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