The OBD code C0039 for Ford indicates a fault in the right rear tone wheel of the AntiLock Brake System (ABS).
Symptoms include the ABS warning light and engine light being illuminated.
The issue is commonly caused by a faulty tone wheel.
It is a moderate concern that affects braking performance.
To fix it, inspect the tone wheel, wiring harness, and connectors for any damage or corrosion.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the Ford c0039 OBD Code
The vehicle displays an ABS warning light on the dashboard.
- Symptoms: AntiLock Brake System (ABS) Warning Light ON.
- Service Engine Soon Warning Light ON.
- Possible symptoms include issues with the vehicle’s stability control system.
- Braking performance may be affected.
- The vehicle may exhibit unusual ABS system behavior, such as activating unexpectedly.
Causes of the Ford c0039 OBD Code
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Possible reasons for fault code C0039 on a Ford vehicle include issues with the wheel speed sensor.
- C0039 can be caused by a faulty Right Rear Tone Wheel
Fixing Ford Error Code c0039 Step By Step
Inspect the wheel speed sensor and its wiring for faults or damage.
- To fix Ford OBDII code C0039, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the ABS module.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no issues are found with the wiring and connectors, proceed to test the wheel speed sensors for proper operation.
- Replace any faulty wheel speed sensors if necessary.
- Clear the fault codes from the ABS module using a diagnostic scan tool.
- Test drive the vehicle to verify that the C0039 fault code does not return.
Cost Of Fixing Ford c0039 Fault Code
The repair for Ford code C0039 typically involves replacing the right rear wheel speed sensor.
The cost to diagnose and fix Ford OBD code C0039 is typically based on 1. 0 hour of labor, with rates ranging from $75 to $150 per hour.
The total cost will depend on the shop’s labor rates and the complexity of the repair needed.
Details of the Ford c0039 OBD Code
Ford code C0039 relates to an issue with the right rear wheel speed sensor.
Ford OBD code C0039 means that the right rear wheel speed sensor signal is erratic.
This code is triggered by the ABS module when it detects inconsistent or abnormal signals coming from the right rear wheel speed sensor.
The ABS module monitors wheel speed sensors to ensure proper operation of the ABS system and traction control.
When the signal from the right rear wheel speed sensor deviates from expected values, the C0039 trouble code is set.
Mechanic’s Tech Notes
For Ford code C0039, check the rear wheel speed sensor for possible faults.
OBDII code C0039 in a Ford typically points to an issue with the Transmission Control Module (TCM).
To diagnose this, you can start by checking the TCM power and ground using a multimeter.
Ensure proper voltage levels are present.
Next, use a scan tool to communicate with the TCM over the Controller Area Network (CAN) network.
If the TCM does not respond, there may be a communication fault.
Visually inspect the wiring harness and connectors for any damage, and check for broken, bent, or corroded pins.
Reflashing the TCM software may be necessary to resolve the issue.
FAQ
OBD code C0039 in a Ford indicates a faulty right rear tone wheel. Symptoms include ABS and Engine warning lights. Inspect wiring harness and connectors for damage.
Common symptoms for OBD code C0039 in a Ford vehicle include ABS warning light on, engine light on, caused by faulty right rear tone wheel.
Diagnose OBD code C0039 in Ford: Symptoms ABS & Engine Light ON. Causes Faulty Right Rear Tone Wheel. Fix Inspect wiring, connectors, and tone wheel for damage.
Wrap Up
If your Ford is displaying OBD code c0039 and you’re experiencing issues with the ABS system, it could be caused by a faulty wheel speed sensor, damaged wiring harness, or poor connections at the sensor or module.
To address Ford OBD code c0039, start by inspecting the wheel speed sensor and its wiring for any visible damage.
Test the sensor’s resistance and check the connectors for corrosion or looseness.
Replace the sensor if necessary and ensure all connections are secure to resolve the ABS system problem.
