OBD code C1420 indicates an issue with the Yaw Rate Sensor in the AntiLock Brake System (ABS).
Symptoms include the ABS Warning Light and Engine Light being illuminated.
The problem is often caused by a faulty Yaw Rate Sensor or related wiring issues.
It is a moderate concern as it affects the ABS functionality.
To fix it, inspect the sensor, wiring harness, and connectors for any damage or poor connections.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the c1420 OBD Code
The vehicle displays a warning light indicating a fault with the C1420 code.
- Symptoms: AntiLock Brake System (ABS) Warning Light ON.
- Engine Light ON (or Service Engine Soon Warning Light).
- Possible loss of ABS functionality.
- Brake pedal may feel different than usual.
- Unusual noises coming from the ABS system.
Causes of the c1420 OBD Code
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Possible issues related to fault code C1420 include faulty wheel speed sensor or damaged wiring.
- C1420 can be caused by a faulty Yaw Rate Sensor (BuiltIn Acceleration Sensor).
- A Yaw Rate Sensor harness that is open or shorted.
- A Yaw Rate Sensor circuit with a poor electrical connection.
Fixing Error Code c1420 Step By Step
Resolve fault code C1420 by inspecting and repairing the wheel speed sensor circuit as needed.
- To fix OBDII code C1420, first, review the possible causes related to this specific fault code.
- Visually inspect the wiring harness and connectors associated with the wheel speed sensor circuit.
- Check for any visible damage or wear on the wiring.
- Inspect the connector pins for any signs of being broken, bent, pushed out, or corroded.
- Repair or replace any damaged wiring or connectors as necessary.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Test drive the vehicle to ensure the code does not return, indicating a successful repair.
Cost Of Fixing c1420 Fault Code
Diagnosing and repairing fault code C1420 may involve inspecting and servicing the vehicle’s wheel speed sensor system.
The cost to diagnose and fix OBD code C1420 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour.
The total cost will vary based on shop rates, complexity of the issue, and any additional parts or services needed.
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Details of the c1420 OBD Code
C1420 code indicates an issue with the brake pressure sensor circuit.
OBD code C1420 means that there is an issue with the pressure sensor circuit in the brake booster.
This code is triggered by the ABS module when it detects a problem with the brake booster pressure sensor circuit.
The brake booster pressure sensor is responsible for monitoring the vacuum pressure in the brake booster to assist with braking.
When this sensor circuit malfunctions, it can affect the vehicle’s braking performance and trigger the C1420 fault code.
Mechanic’s Tech Notes
Code C1420 relates to the left front wheel speed sensor circuit having an open or short circuit.
OBDII code C1420 relates to a malfunction in the brake pressure sensor circuit.
To diagnose, use a voltmeter to check the sensor’s power and ground connections for proper voltage levels.
Utilize a scan tool to monitor the sensor’s data and ensure it communicates correctly over the vehicle’s network.
Visually inspect the wiring harness and connectors for any damage, corrosion, or loose connections.
If no visible issues are found, consider recalibrating or reprogramming the sensor.
Remember to clear the code after any repairs are made to see if the issue persists.
FAQ
OBD code C1420 indicates an issue with the Yaw Rate Sensor in the AntiLock Brake System. Check sensor, harness, and connections for faults.
Common symptoms for OBD code C1420 include ABS warning light on, engine light on. Causes may be faulty yaw rate sensor or related wiring issues. Fix: Inspect and repair sensor and wiring.
Diagnose OBD code C1420 by checking Yaw Rate Sensor and its harness for faults. Inspect wiring for damage or poor connections. Fix as needed.
Wrap Up
If your ABS warning light is illuminated and you retrieve OBDII code c1420, it may indicate a fault in the wheel speed sensor circuit for the left front wheel.
This could be caused by a damaged sensor, faulty wiring, or poor connections.
To address OBDII code c1420, inspect the wiring and connectors related to the left front wheel speed sensor.
Look for any frayed wires, loose connections, or corrosion.
Test the sensor for proper operation and replace if necessary to resolve the issue.
