The OBD code U0140 for Ford indicates a communication error between the Body Control Module (BCM) and other modules.
Symptoms include the Engine Light being ON.
Causes may include a faulty BCM, open/shorted BCM harness, or poor electrical connection.
This issue is moderate in severity.
To fix, inspect wiring harness and connectors for damage, and check connector pins for any issues.
| 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 Ford u0140 OBD Code
The vehicle displays communication error between the body control module and the instrument cluster.
- Symptoms: Service Engine Soon Warning Light may illuminate.
- Loss of communication with the body control module.
- Issues with various vehicle systems like power windows, door locks, or lighting.
- Difficulty starting the vehicle.
- Rough shifting from the transmission.
Causes of the Ford u0140 OBD Code
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Possible reasons for Ford U0140 include communication issues within the body control module network.
- U0140 can be caused by a communication error.
- A faulty Body Control Module (BCM).
- An open or shorted Body Control Module (BCM) harness.
- Or a poor electrical connection in the Body Control Module (BCM) circuit.
Fixing Ford Error Code u0140 Step By Step
Resolve the Ford U0140 code by inspecting the communication network for faults and addressing any issues found.
- To fix the Ford OBDII code U0140, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors associated with the affected module.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, consider resetting the module or performing a software update.
- If the problem persists, it may be necessary to replace the module itself.
Cost Of Fixing Ford u0140 Fault Code
Diagnosing and repairing fault code U0140 on a Ford typically involves checking the communication network.
The cost to diagnose and fix Ford OBD code U0140 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on shop rates, complexity of the issue, and any additional parts or labor needed for the repair.
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Details of the Ford u0140 OBD Code
Ford code U0140 relates to a communication error in the body control module network.
Ford OBD code U0140 means Lost Communication with Body Control Module.
This code is triggered when the Powertrain Control Module (PCM) detects a communication error with the Body Control Module (BCM) over the Controller Area Network (CAN) bus.
The BCM is responsible for various body functions such as interior lighting, power windows, and door locks.
When communication is lost with the BCM, it can lead to issues with these systems.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing Ford code U0140 related to lost communication with body control module.
To diagnose and fix OBDII code U0140 in a Ford vehicle, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) using a scan tool.
Visually inspect the wiring harness and connectors for any damage, focusing on broken, bent, or corroded pins.
If no visible issues are found, consider reprogramming or reflashing the TCM.
This process may require specialized equipment and software.
By following these steps, you can effectively diagnose and address the U0140 fault code in your Ford vehicle.
FAQ
Common symptoms of OBD code U0140 in a Ford vehicle include Engine Light ON, caused by communication error, faulty Body Control Module (BCM), or wiring issues.
Possible causes of OBD code U0140 in a Ford vehicle include a communication error, faulty Body Control Module (BCM), open/shorted BCM harness, or poor electrical connection.
Diagnose U0140 in Ford: Check BCM communication, harness, connections. Inspect for damage, corrosion. Repair as needed. Review and address possible causes for resolution.
Wrap Up
If your Ford is displaying OBD code U0140 along with ABS or stability control warning lights, it may indicate a communication error between the control modules due to a faulty ABS control module, damaged wiring harness, or poor connections.
To address Ford OBD code U0140, start by inspecting the wiring harness for any visible damage or corrosion.
Check the connectors for a secure fit and clean any corrosion present.
Test the ABS control module and related sensors for proper functionality to pinpoint the root cause accurately.
