[SOLVED] Fixing U1502 Code: Tcm Message Data Length Error

The automobile fault code U1502 indicates a problem with the Transmission Control Module (TCM) or Anti-Lock Brakes (ABS) Module. The most common symptom is the Engine Light ON or Service Engine Soon Warning Light.

The cause of this fault code could be a faulty TCM, an open or shorted TCM harness, poor electrical connection in the TCM circuit, or a faulty ABS module.

The repair importance is high as it affects the transmission and braking system. The repair difficulty is moderate, and the repair time is estimated at 1.0 hour. To fix the issue, one should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

It is essential to interpret the fault code correctly to avoid further damage to the vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be a sign of u1502 fault code.

Here are the symptoms to look out for:

  • The automobile fault code U1502 has the following symptoms: Engine Light ON, Service Engine Soon Warning Light ON, communication issues between the vehicle’s modules, problems with the vehicle’s network, issues with the vehicle’s wiring, and problems with the vehicle’s sensors.

The automobile fault code u1502 can be caused by a faulty TCM, open or shorted TCM harness, poor electrical connection in TCM circuit, or a faulty ABS module.

  • The automobile fault code u1502 can be caused by a faulty Transmission Control Module (TCM).
  • It can also be caused by an open or shorted Transmission Control Module harness.
  • Another cause can be a poor electrical connection in the Transmission Control Module circuit.
  • Lastly, a faulty Anti-Lock Brakes (ABS) Module can also trigger this fault code.

Below are some possible fixes for the automobile fault code u1502, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code u1502, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The factors that influence the cost of fixing the automobile fault code U1502 include the estimated repair time, which is 1.0 hour. The cost of repair is also influenced by the hourly rate charged by the auto repair shop, which is typically between $75 and $150 per hour. These factors should be considered when estimating the total cost of fixing the U1502 fault code.

The u1502 fault code is related to the Anti-Lock Brakes Module and the Transmission Control Module. This code is set when the Anti-Lock Brakes Module detects bus messages from the Transmission Control Module that are of improper data length. The Diagnostic Trouble Code (DTC) will be triggered when the Anti-Lock Brakes Module receives an implausible message data length from the Transmission Control Module.

If you encounter the u1502 fault code, it is important to have your vehicle inspected by a qualified mechanic to determine the root cause of the issue and to prevent any potential safety hazards.

What are the possible causes of the u1502 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u1502 automobile fault code. This code is caused by a faulty Transmission Control Module (TCM), an open or shorted TCM harness, poor electrical connection in the TCM circuit, or a faulty Anti-Lock Brakes (ABS) Module. To fix this issue, you should check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components or broken, bent, pushed out, or corroded connector’s pins.

How can one visually inspect the related wiring harness and connectors to fix the u1502 fault code?

If you’re experiencing the u1502 fault code, which is indicated by the Engine Light ON or Service Engine Soon Warning Light, there are a few possible causes to consider. These include a faulty Transmission Control Module (TCM), an open or shorted TCM harness, poor electrical connection in the TCM circuit, or a faulty Anti-Lock Brakes (ABS) Module. To fix the issue, start by visually inspecting the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

Is a faulty Anti-Lock Brakes (ABS) Module a common cause of the u1502 fault code?

The u1502 fault code can be caused by a faulty Anti-Lock Brakes (ABS) Module, among other things. This can result in the engine light turning on or a service engine soon warning light. To fix the issue, it is recommended to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

u1502 error fault code explained

If your engine light is on and you have a U1502 fault code, it could be due to a faulty Transmission Control Module (TCM), an open or shorted TCM harness, poor electrical connection in the TCM circuit, or a faulty Anti-Lock Brakes (ABS) Module.

Visually inspect the wiring harness and connectors for damage and check for broken, bent, pushed out, or corroded connector pins.

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