The OBD code U0140 for Chrysler indicates a communication error between the Body Control Module (BCM) and the Powertrain Control Module (PCM).
Symptoms include the Engine Light being ON.
The cause is often a faulty BCM, open/shorted BCM harness, or poor electrical connection.
It is a moderate issue.
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 Chrysler u0140 OBD Code
The vehicle displays communication error between the body control module and the powertrain control module.
- Symptoms: Service Electronic Throttle Control warning light may illuminate.
- Loss of communication with the Body Control Module (BCM) may occur.
- Vehicle may experience issues with starting.
- Steering wheel controls may not function properly.
- Cruise control may become inoperative.
Causes of the Chrysler u0140 OBD Code
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Possible triggers for Chrysler fault code U0140 include communication issues within the body control module network.
- U0140 can be caused by a faulty Body Control Module.
- A Body Control Module harness that is open or shorted.
- A poor electrical connection in the Body Control Module circuit.
Fixing Chrysler Error Code u0140 Step By Step
Resolve the Chrysler U0140 code by inspecting the CAN bus communication system for faults.
- To fix the Chrysler OBDII code U0140, 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 check of the powertrain control module (PCM) and the communication network.
- Ensure all modules are communicating properly and there are no issues with the CAN bus system.
- If no visible issues are found, consider resetting the modules or performing a software update to address any communication errors.
- If the problem persists, it may be necessary to replace the PCM or any faulty modules causing the U0140 code.
Cost Of Fixing Chrysler u0140 Fault Code
The repair for Chrysler U0140 involves diagnosing and fixing a communication error between modules.
The cost to diagnose and fix Chrysler OBD code U0140 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, complexity of the issue, and any additional parts or services needed.
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Details of the Chrysler u0140 OBD Code
Chrysler U0140 code indicates lost communication with body control module.
Chrysler OBD code U0140 means Lost Communication With Body Control Module.
This code is triggered when the Powertrain Control Module (PCM) detects a loss of communication 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 between the PCM and BCM, code U0140 is set, indicating a potential issue with the network or one of the modules.
Mechanic’s Tech Notes
For Chrysler U0140, check for communication issues between the body control module and other modules.
To diagnose and fix OBDII code U0140 in a Chrysler 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.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, focusing on broken, bent, or corroded pins.
Ensure all connections are secure.
If the issue persists, consider consulting a professional for further diagnosis and repair.
FAQ
Common symptoms of OBD code U0140 in a Chrysler vehicle include Engine Light ON. Possible causes are a faulty Body Control Module or related wiring issues. Fix: Inspect and repair wiring connections.
Inspect the Body Control Module, harness, and connections first for U0140 in your Chrysler. Look for faults and poor connections.
Yes, it is necessary to clear code U0140 after fixing the underlying issue in a Chrysler to reset the Engine Light.
Wrap Up
If your Chrysler is displaying OBDII code U0140 along with ABS or traction 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 Chrysler OBDII code U0140, start by inspecting the wiring harness for any visible damage or corrosion.
Check the connectors for a secure fit and clean any dirt or debris that may be affecting the connection.
Consider testing the ABS control module and related components for proper functionality.
