[SOLVED] Dodge U1412 Code: Fast Fix For Speed Signal Error

The OBD code U1412 for Dodge indicates a communication error between the Transmission Control Module (TCM) and the Powertrain Control Module (PCM).

Symptoms include the Engine Light being ON.

This issue is commonly caused by a faulty TCM, open or shorted TCM harness, or poor electrical connections.

It is important to visually inspect the wiring harness and connectors for damage or corrosion 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 Dodge u1412 OBD Code

The Dodge U1412 fault code indicates a communication error between the ABS module and the powertrain control module.

Symptoms: Service 4WD System message on the dashboard.
4WD system may not engage properly.
Possible ABS warning light on the instrument cluster.

Causes of the Dodge u1412 OBD Code

Possible triggers for Dodge U1412 include faulty wheel speed sensors or damaged wiring harnesses.

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U1412 can be caused by a faulty Transmission Control Module (TCM).
A Transmission Control Module harness that is open or shorted.
A Transmission Control Module circuit with a poor electrical connection.

Fixing Dodge Error Code u1412 Step By Step

Resolve Dodge fault code U1412 by inspecting and repairing the implausible vehicle speed signal.

To fix the Dodge OBDII code U1412, 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, consider resetting the ABS module using a diagnostic scan tool.
Perform a software update on the ABS module if necessary.
If the problem persists, replace the ABS module with a new one following manufacturer’s guidelines.

Cost Of Fixing Dodge u1412 Fault Code

Diagnosing and repairing Dodge fault code U1412 may involve inspecting and fixing the communication network.

The cost to diagnose and fix Dodge OBD code U1412 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. Factors like shop rates and complexity can affect the final cost.

Details of the Dodge u1412 OBD Code

Dodge U1412 code indicates an implausible data signal received from the vehicle speed sensor.

Dodge OBD code U1412 means the Implausible Vehicle Speed Signal Received.

This code is triggered by the Powertrain Control Module (PCM) when it detects an implausible vehicle speed signal from the Antilock Brake System (ABS) Module.

The ABS Module sends vehicle speed information to the PCM, and if the signal is deemed implausible or inconsistent with other vehicle data, the U1412 code is set.

This code can indicate a problem with the ABS Module, wiring issues, or sensor malfunctions affecting the vehicle speed signal communication between modules.

Mechanic’s Tech Notes

This section provides detailed information on diagnosing and fixing Dodge fault code U1412.

To diagnose and fix OBDII code U1412 in a Dodge, 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, and check connector pins for signs of being broken, bent, pushed out, or corroded.

This thorough inspection can help identify and address any issues causing the U1412 fault code.

FAQ

1. What does OBD code U1412 mean in a Dodge vehicle?

OBD code U1412 in a Dodge indicates a fault with the Transmission Control Module (TCM). Check TCM, harness, and connections for issues.

2. What are the common symptoms associated with code U1412 in a Dodge?

Common symptoms for Dodge code U1412 include the Engine Light ON. Possible causes are a faulty TCM, open/shorted TCM harness, or poor electrical connection.

3. How can I diagnose and fix OBD code U1412 in my Dodge vehicle?

Diagnose U1412 in Dodge: Check TCM, harness, connections for faults. Inspect wiring for damage, connector pins for issues. Repair as needed.

Wrap Up

If your Dodge is displaying OBD code u1412 and experiencing issues with the vehicle stability control system, it could be caused by a malfunction in the wheel speed sensor circuit, a faulty wheel speed sensor, or damaged wiring connections related to the system.

To address Dodge OBD code u1412, start by inspecting the wheel speed sensors and their wiring harnesses for any signs of damage or corrosion.

Test the sensor outputs and connectors for proper voltage and continuity.

Replace any faulty sensors or repair any damaged wiring as needed to restore proper functionality to the vehicle stability control system.