The OBD code U1110 for Chrysler indicates a communication issue between the Powertrain Control Module (PCM) and the Antilock Brake System (ABS) Module.
Symptoms include the Engine Light ON, engine cranking but not starting, and potential scan tool communication problems.
Causes can be a faulty ABS Module, wiring issues, or PCM problems.
This is a moderate issue that requires checking wiring and connectors for damage and corrosion.
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 u1110 OBD Code
The vehicle displays communication failure between the PCM and the TCM with Chrysler U1110 fault code.
- Symptoms: Engine Light ON.
- Engine cranks but may not start may be intermittent.
- May or may not be able to communicate with a scan tool depends on the problem.
Causes of the Chrysler u1110 OBD Code
Possible triggers for Chrysler U1110 include communication issues between the PCM and other modules.
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- U1110 can be caused by a faulty Antilock Brake System (ABS) Module.
- An open or shorted Antilock Brake System Module harness.
- A poor electrical connection in the Antilock Brake System Module circuit.
- Or a faulty Powertrain Control Module (PCM).
Fixing Chrysler Error Code u1110 Step By Step
Address the communication issue between the PCM and the TCM to resolve Chrysler U1110.
- To fix the Chrysler OBDII code U1110, 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.
- Ensure all connections are secure and free of corrosion.
- If no issues are found with the wiring and connectors, consider resetting the ABS module using a scan tool.
- Perform a software update on the ABS module if necessary.
- If the problem persists after these steps, it may be required to replace the ABS module with a new one.
Cost Of Fixing Chrysler u1110 Fault Code
Diagnosing and repairing Chrysler U1110 typically involves troubleshooting communication issues within the vehicle’s network system.
The cost to diagnose and fix the Chrysler OBD code U1110 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. The final cost may vary based on shop rates and the complexity of the diagnosis and repair.
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Details of the Chrysler u1110 OBD Code
Chrysler U1110 code indicates a loss of communication with the vehicle’s fuel pump control module.
Chrysler OBD code U1110 indicates a loss of serial communication with the Vehicle Immobilizer Module (VIM).
This code is triggered by the Powertrain Control Module (PCM) when it detects a lack of communication with the VIM over the CAN (Controller Area Network) bus.
The Vehicle Immobilizer Module (VIM) is responsible for the vehicle’s security system, including key recognition and antitheft functions.
When the PCM is unable to communicate with the VIM, it can lead to starting issues or the vehicle not starting at all due to the security system being activated.
Technicians should check the wiring and connections between the PCM and the VIM for any faults or corrosion that may be causing the communication issue.
Additionally, verifying the VIM’s functionality and ensuring it is properly programmed to the vehicle is crucial in resolving this U1110 fault code.
Mechanic’s Tech Notes
For Chrysler U1110 code, refer to detailed diagnostic information for network communication issues.
To diagnose Chrysler OBDII code U1110, 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, 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 U1110 in a Chrysler vehicle include Engine Light ON, engine cranks but may not start, and intermittent communication issues with scan tool.
Diagnose U1110 code in Chrysler: Check ABS module, harness, and PCM for faults. Inspect wiring for damage, poor connections, or corrosion.
Inspect ABS module, harness, and connections for U1110 code. Check for damage or poor connections. Verify PCM functionality. Repair as needed.

Wrap Up
If your Chrysler is displaying OBDII code u1110, you may experience issues with the vehicle’s Controller Area Network (CAN) communication system.
This could be caused by faulty sensors, damaged wiring, loose connections, or a malfunctioning Powertrain Control Module (PCM).
To address Chrysler OBDII code u1110, start by inspecting the CAN bus wiring harness for any signs of damage or corrosion.
Check all connectors for a secure fit and ensure there are no bent or pushed out pins.
Test the sensors and modules connected to the CAN network for proper functionality and replace any components that are