The automobile fault code U1402 is a common issue that triggers the Engine Light ON or Service Engine Soon Warning Light. The cause of this problem could be due to a faulty Transmission Control Module (TCM), an open or shorted TCM harness, or a poor electrical connection in the TCM circuit.
To fix this issue, you need to check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components. The repair time for this issue is around 1.0, and it’s essential to address this problem promptly to avoid further damage to your vehicle.
Understanding how to interpret the fault code is crucial to identifying the root cause of the problem and fixing it effectively.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Decoding U1402: Common Symptoms Of This Fault Code
If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be a sign of u1402 fault code. Here are the symptoms to look out for:
- The U1402 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
- Other symptoms may include issues with the transmission, such as difficulty shifting gears or the transmission slipping.
- The vehicle may also experience problems with the speedometer or odometer, with either or both failing to work properly.
- Additionally, the vehicle’s ABS system may be affected, causing the ABS warning light to turn on.
- Finally, the vehicle may experience issues with the cruise control system, which may fail to engage or disengage properly.
Decoding U1402: Common Causes Of The Fault Code
The automobile fault code u1402 can be caused by various factors, including PCM codes, faulty TCM, open or shorted TCM harness, and poor electrical connection.
- The automobile fault code u1402 can be caused by several factors.
- Firstly, it is important to check for any Powertrain Control Module (PCM) codes.
- Secondly, a faulty Transmission Control Module (TCM) can also trigger this fault code.
- Additionally, an open or shorted Transmission Control Module (TCM) harness can be a cause.
- Lastly, a poor electrical connection in the Transmission Control Module (TCM) circuit can also lead to the u1402 fault code.
Fix U1402: Simple Steps To Solve The Issue
Below are the possible fixes for the automobile fault code u1402, including inspecting wiring harness and connectors for damage or corrosion.
- To fix the automobile fault code u1402, 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.
Crunching The Numbers: U1402 Repair Cost & Complexity
The automobile fault code U1402 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour. Therefore, the total cost of diagnosing and fixing the U1402 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue.
Decoding U1402: Understanding Your Vehicle’s Network Communication Failure
The U1402 fault code is related to the transmission control module (TCM) in a vehicle. It occurs when the TCM receives a Signal Not Available (SNA) message from the Powertrain Control Module (PCM) or an incorrect Controller Area Network (CAN) message from the PCM.
This fault code is specifically related to an Implausible Engine Temperature Signal Receiv. It is important to address this issue promptly as it can affect the performance and safety of the vehicle.
A qualified mechanic should be consulted to diagnose and repair the issue.
FAQ
If your engine light is on and you’re seeing the u1402 fault code, it could be due to a faulty Transmission Control Module (TCM), an open or shorted TCM harness, or a poor electrical connection in the TCM circuit. To fix the issue, check for PCM codes and visually inspect the wiring harness and connectors for any damage or corrosion. Look for broken, bent, pushed out, or corroded connector pins.
If the engine light is on and the u1402 fault code is suspected, the TCM harness should be checked. This fault code can be caused by a faulty TCM, open or shorted TCM harness, or poor electrical connection. To fix the issue, the related wiring harness and connectors should be visually inspected for any damage or corrosion. Additionally, the components should be checked for any broken, bent, or pushed out connector pins.
If you’re experiencing the u1402 fault code, indicated by the engine light or service engine soon warning light being on, there are a few steps you can take to visually inspect the wiring harness and connectors. First, check for Powertrain Control Module (PCM) codes and a faulty Transmission Control Module (TCM). Then, inspect the related wiring harness and connectors for any damage or broken, bent, pushed out, or corroded pins. This will help identify if the Transmission Control Module (TCM) harness is open or shorted, or if there is a poor electrical connection in the circuit.
Wrap Up
If you see the Engine Light ON or Service Engine Soon Warning Light, check for Powertrain Control Module (PCM) codes, faulty Transmission Control Module (TCM), open or shorted TCM harness, or poor electrical connection.
Visually inspect the related wiring harness and connectors, and check for damaged components and connector’s pins.
