c1420 acceleration sensor malfunction
C1420 Acceleration Sensor Malfunction
OBD2 Code: C1420
Description: Acceleration Sensor Malfunction
Definition: The C1420 code indicates a problem with the acceleration sensor, which is responsible for detecting changes in vehicle speed and direction. This sensor plays a crucial role in systems such as traction control and stability control. A malfunction can lead to improper functioning of these systems, affecting vehicle safety and performance.
c1420 – Acceleration Sensor Malfunction
Typical Severity: Moderate
Common Causes
C1420 – Acceleration Sensor Malfunction
Common causes:
- Faulty acceleration sensor
- Wiring issues in the acceleration sensor circuit
- Poor connection or loose wiring in the sensor system
- Corrosion or damage to the sensor components
Common Misdiagnosis
OBD2 Code: C1420
Description: Acceleration Sensor Malfunction
Common Misdiagnosis: Often misdiagnosed as a faulty ABS module or wheel speed sensor issue.
Common Diagnostic Steps
OBD2 Code: C1420
Description: Acceleration Sensor Malfunction
Common Diagnostic Steps:
- Verify the code using an OBD2 scanner.
- Inspect the acceleration sensor and its wiring for any visible damage or disconnection.
- Check for loose connections or corrosion at the sensor connector.
- Test the voltage supply to the acceleration sensor using a multimeter.
- Examine related fuses and relays to ensure they are functioning properly.
- Use a scan tool to monitor live data from the acceleration sensor to check for irregular readings.
- If necessary, replace the faulty acceleration sensor with a new one.
- Clear the code and test drive the vehicle to see if it returns.