The automobile fault code U2603 indicates a problem with the HybridEV Battery Interface Control Module 1 or the Battery Energy Control Module. The most common symptom is the Engine Light ON or Service Engine Soon Warning Light. The cause of this issue could be a faulty module, open or shorted harness, poor electrical connection, or a faulty control module.

The repair importance is high as it affects the performance of the vehicle. The difficulty level of the repair is moderate, and it may take around 1.0 hour to fix.

To interpret the fault code, one needs to check the possible causes listed above and visually inspect the related wiring harness and connectors.

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, it could be due to the u2603 fault code. Here are some symptoms to look out for:

  • The fault code U2603 is associated with 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.
  • Additionally, the vehicle may experience reduced power or acceleration, and there may be a noticeable decrease in fuel efficiency.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe operation on the road.

The automobile fault code u2603 can be caused by various factors, including a faulty battery control module and poor electrical connections.

  • The automobile fault code u2603 can be caused by a faulty Hybrid/EV Battery Interface Control Module 1.
  • It can also be caused by an open or shorted Hybrid/EV Battery Interface Control Module 1 harness.
  • Another cause can be a poor electrical connection in the Hybrid/EV Battery Interface Control Module 1 circuit.
  • Lastly, a faulty Battery Energy Control Module can also trigger this fault code.

To fix the u2603 automobile fault code, check the possible causes and inspect the related wiring harness, connectors, and components for damage.

  • To fix the automobile fault code u2603, 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 automobile fault code U2603 diagnosis and fixing cost is influenced by several factors. The estimated repair time for this code is 1.0 hour. The cost of repair is commonly charged between $75 and $150 per hour by most auto repair shops.

These factors play a significant role in determining the overall cost of fixing the U2603 fault code. It is important to consider these factors before taking your vehicle for repair to avoid any unexpected expenses.

The u2603 fault code indicates a communication problem between the Battery Energy Control Module and the HybridEV Battery Interface Control Module 1. Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation.

The scan tool cannot communicate with the HybridEV Battery Interface Control Modules 1 on Battery Energy Control Module dedicated bus.

The DTC will set when there is no temperature report message from HybridEV Battery Interface Control Modules 1 to Battery Energy Control Module within 4s.

What are the possible causes of the u2603 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u2603 fault code. This code is caused by a faulty Hybrid/EV Battery Interface Control Module 1, an open or shorted Hybrid/EV Battery Interface Control Module 1 harness, a poor electrical connection in the Hybrid/EV Battery Interface Control Module 1 circuit, or a faulty Battery Energy Control 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 the Hybrid/EV Battery Interface Control Module 1 harness be checked for faults?

If the engine light is on due to a faulty Hybrid/EV Battery Interface Control Module 1, the harness can be checked for faults by visually inspecting the related wiring harness and connectors. Look for broken, bent, pushed out, or corroded connector’s pins. Check for damaged components and ensure that the Hybrid/EV Battery Interface Control Module 1 harness is not open or shorted. Additionally, check for poor electrical connections in the Hybrid/EV Battery Interface Control Module 1 circuit and the Battery Energy Control Module.

What steps should be taken to fix the u2603 fault code?

If you’re experiencing the u2603 fault code, which is indicated by the engine light being on, it’s likely due to a faulty Hybrid/EV Battery Interface Control Module 1 or a poor electrical connection in the Hybrid/EV Battery Interface Control Module 1 circuit. To fix this issue, you should visually inspect the wiring harness and connectors for any damage or corrosion. Additionally, check for broken, bent, or pushed out connector pins.

u2603 error fault code explained

If your engine light is on, it could be due to a faulty HybridEV Battery Interface Control Module 1 or a poor electrical connection. To fix it, visually inspect the wiring harness and connectors for damage or corrosion.

Check for broken or bent pins.

Scroll to Top