The Buick U1345 fault code indicates a communication error between the body control module and the electronic brake control module.
Symptoms include the Engine Light being ON.
This issue is commonly caused by a faulty control module or wiring harness issues.
It is essential to visually inspect the wiring and connectors for any damage and ensure proper connections to resolve this issue.
| 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 Buick u1345 OBD Code
The vehicle displays erratic behavior and warning lights with fault code Buick U1345.
- Symptoms: Service Stability System Warning Light ON.
- Loss of traction control functionality.
- Erratic steering behavior.
- Difficulty maintaining vehicle stability during turns.
Causes of the Buick u1345 OBD Code
Possible issues with the Buick U1345 code include faulty wheel speed sensor, damaged wiring, or ABS module problems.
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- U1345 can be caused by a faulty ABS control module setting the DTC.
- A damaged ABS control module harness that is open or shorted.
- Poor electrical connection in the ABS control module circuit.
Fixing Buick Error Code u1345 Step By Step
Address the faulty communication between the body control module and the electronic brake control module.
- To fix U1345 in a Buick, 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 any issues are found, repair or replace the damaged wiring or connectors.
- Clear the fault code using a diagnostic scanner.
- Test drive the vehicle to ensure the U1345 code does not return.
Cost Of Fixing Buick u1345 Fault Code
The repair for Buick fault code U1345 may involve diagnosing and fixing a communication issue.
The cost to diagnose and fix the Buick U1345 error depends on the estimated repair time of 1. 0 hour.
Labor rates usually range from $75 to $150 per hour, so the general cost could be between $75 and $150. Actual cost may vary based on shop rates and the complexity of the repair.
Details of the Buick u1345 OBD Code
Buick U1345 code indicates a malfunction in the electronic brake control module communication circuit.
Code U1345 for Buick vehicles indicates a communication error between the body control module (BCM) and the electronic brake control module (EBCM).
This code is triggered when the BCM does not receive the expected data from the EBCM over the serial data circuit.
The serial data circuit is responsible for transmitting information between various modules in the vehicle for proper operation and communication.
Mechanic’s Tech Notes for Buick Error Code u1345
For Buick U1345, this section provides detailed diagnostic information for the specific fault code.
Fault code U1345 in a Buick typically indicates a communication error between the Body Control Module (BCM) and the Electronic Brake Control Module (EBCM).
To diagnose this issue, you can start by checking the wiring harness and connectors between the BCM and EBCM for any visible damage or corrosion.
Using a multimeter, you can test the power and ground connections to both modules to ensure they are within specifications.
Additionally, you can use a scan tool to check if the BCM and EBCM are communicating over the Controller Area Network (CAN) network.
If there is no communication, it could indicate a wiring issue, a faulty module, or a problem with the CAN bus itself.
If all wiring and connections check out, and there are no visible issues, reflashing the modules may be necessary to resolve the communication error.
Reflashing involves updating the software in the modules to the latest version, which can sometimes fix communication issues between modules.
Remember to always follow proper diagnostic procedures and consult the vehicle’s service manual for specific testing instructions related to fault code U1345 in a Buick.
FAQ
Fault code U1345 in a Buick indicates a faulty control module setting the DTC. Check for open/shorted harness, poor electrical connection. Inspect wiring harness, connectors, and components for damage or corrosion.
To diagnose a U1345 fault code in a Buick, check for a faulty control module, open/shorted harness, or poor electrical connection. Inspect wiring and connectors for damage or corrosion.
For a U1345 code in a Buick, common fixes include checking the control module, harness, and connections for faults or damage. Inspect wiring and connectors thoroughly.
Wrap Up
If your Buick is showing error code U1345, you may experience issues with the body control module communication system.
This could be caused by faulty sensors, damaged wiring, or poor connections within the system.
Symptoms may include intermittent power window operation, malfunctioning door locks, or erratic lighting behavior.
To address this, check the wiring harness for any signs of damage, inspect connectors for corrosion or looseness, and test the body control module for proper communication with other vehicle systems.
Consider replacing any faulty sensors or repairing damaged wiring as needed.
