The OBD code C100A for Dodge indicates an issue with the Left Front Wheel Speed Sensor circuit in the AntiLock Brake System (ABS).
Symptoms include the ABS Warning Light and Engine Light being illuminated.
This is commonly caused by a faulty sensor or wiring issues.
It is important to inspect the sensor, wiring harness, and connectors for any damage or poor connections to resolve this problem.
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 Dodge c100a OBD Code
The Dodge C100A fault code indicates an issue with the right front wheel speed sensor circuit.
- 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 during braking.
- Unusual noises from the ABS system.
Causes of the Dodge c100a OBD Code
Dodge code C100A typically indicates a fault in the right front wheel speed sensor circuit.
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- C100A can be caused by a Faulty Left Front Wheel Speed Sensor.
- A Left Front Wheel Speed Sensor harness that is open or shorted.
- A Left Front Wheel Speed Sensor circuit with poor electrical connection.
- A Faulty AntiLock Brake System (ABS) Module.
Fixing Dodge Error Code c100a Step By Step
To resolve Dodge fault code C100A, inspect and repair the steering angle sensor circuit as needed.
- To fix the Dodge OBDII code C100A, start by reviewing the possible causes and visually examining the wiring harness and connectors.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, perform a thorough inspection of the wheel speed sensors and tone rings for any damage or debris.
- Test the wheel speed sensor signals using a scan tool to identify any faulty sensors.
- Replace any faulty wheel speed sensors or tone rings as necessary.
- Clear the fault codes and test drive the vehicle to ensure the issue has been resolved.
Cost Of Fixing Dodge c100a Fault Code
The repair for Dodge fault code C100A may involve replacing the ABS module or sensor.
The cost to diagnose and fix Dodge OBD code C100A is typically based on an estimated repair time of 1. 0 hour.
Labor rates range from $75 to $150 per hour, so the total cost could be between $75 and $150. The final cost may vary depending on shop rates and the complexity of the diagnostic and repair process.
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Details of the Dodge c100a OBD Code
Dodge fault code C100A relates to a steering angle sensor internal fault.
Dodge OBD code C100A indicates an ABS hydraulic pump motor circuit failure.
This code is triggered by the Antilock Braking System (ABS) module when it detects a malfunction in the hydraulic pump motor circuit.
The ABS module monitors the voltage and current to the pump motor to ensure proper operation.
When a fault is detected in this circuit, the C100A trouble code is set, indicating a problem with the ABS hydraulic pump motor circuit.
Mechanic’s Tech Notes
For Dodge C100A code, refer to detailed diagnostic information for troubleshooting and repair guidance.
To diagnose and fix OBDII code C100A in a Dodge, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, and check connector pins for signs of being broken, bent, pushed out, or corroded.
This thorough inspection can help identify and address any issues causing the C100A fault code.
FAQ
OBD code C100A in a Dodge indicates an issue with the Left Front Wheel Speed Sensor. Check sensor, harness, connections, and ABS module for faults.
Common symptoms of OBD code C100A in a Dodge include ABS warning light on, engine light on. Causes may be faulty left front wheel speed sensor or related wiring issues.
Diagnose OBD code C100A in Dodge: Symptoms ABS & Engine Lights ON. Causes Faulty Left Front Wheel Speed Sensor or harness issues. Fix Inspect sensor, harness, connectors for damage.

Wrap Up
If your Dodge is displaying OBD code c100a, you may experience issues with the ABS system, such as erratic braking behavior, ABS warning light on, or loss of traction control.
This code typically indicates a problem with the right front wheel speed sensor circuit, possibly due to a faulty sensor, damaged wiring, or poor connections.
To address Dodge OBD code c100a, start by inspecting the wiring harness and connectors related to the right front wheel speed sensor.
Look for any signs of damage, corrosion, or loose connections.
Test the sensor itself for proper operation and replace it if necessary
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