As a mechanic, you may come across numerous OBD-II codes while working on a vehicle. One of these codes is P0B60 – hybrid/EV battery voltage sense H circuit low. This code specifically relates to hybrid or electric vehicles, so it’s a bit different than the typical OBD-II code. In this article, we will explain what P0B60 means, the symptoms you may experience, and how to repair the issue.
What is OBD-II Code P0B60?
P0B60 is an OBD-II code that specifically relates to hybrid or electric vehicles (EVs). It refers to a low voltage reading on the hybrid/EV battery voltage sense H circuit. The voltage sense circuits are responsible for measuring the battery voltage and delivering that information to the vehicle’s onboard computer. In the case of P0B60, there is an issue with the circuit, leading to a low voltage reading.
Symptoms of P0B60
The symptoms of P0B60 can vary depending on the make and model of the vehicle, as well as the particular hybrid/EV system used. However, there are some common symptoms you may experience, including:
– Check engine light is on: The OBD-II code P0B60 will cause the check engine light to come on.
– Reduced power: In many cases, the vehicle will go into a reduced power mode to protect the battery and the hybrid/EV system.
– Reduced fuel economy: Because the vehicle is in a reduced power mode, fuel economy may suffer.
– Difficulty starting: If the battery voltage is too low, you may experience difficulty starting the vehicle.
Causes of P0B60
There are several potential causes of P0B60, including:
– Faulty voltage sense H circuit: The most likely cause is a fault in the voltage sense H circuit itself. This could be caused by a damaged wire, a broken connection, or a faulty sensor.
– Failed battery: If the battery itself has failed, it may be unable to generate the correct voltage, leading to a low voltage reading on the voltage sense H circuit.
– Faulty hybrid/EV system: In some cases, the issue may be with the hybrid/EV system itself. This could be caused by a faulty control module, faulty sensors, or other issues.
Repairing P0B60
To repair P0B60, you will need to diagnose the issue and address the underlying cause. Here are the steps you should follow:
1. Use an OBD-II scanner to read the code and determine what the specific issue is.
2. Check the voltage sense H circuit to ensure that it is functioning properly. This may require a wiring diagram and a multimeter to test the circuit.
3. If the voltage sense H circuit is functioning properly, check the battery to ensure that it is generating the correct voltage. A battery test can be done with a multimeter.
4. If the voltage sense H circuit and the battery are both functioning properly, the issue may be with the hybrid/EV system itself. In this case, it’s best to bring the vehicle to a qualified hybrid/EV technician who can diagnose and repair the issue.
Frequently Asked Questions
1. Can I continue to drive my car with P0B60?
It’s not recommended to continue to drive your car with P0B60, as the reduced power mode can be dangerous and may cause additional damage to the hybrid/EV system. It’s best to diagnose and repair the issue as soon as possible.
2. How much does it cost to repair P0B60?
The cost to repair P0B60 can vary widely depending on the cause of the issue. Repairing the voltage sense H circuit may be relatively inexpensive, while replacing the battery or the hybrid/EV system can be costly.
3. Can I repair P0B60 myself?
If you have experience working on hybrid or electric vehicles, you may be able to diagnose and repair P0B60 yourself. However, it’s important to remember that working on these vehicles can be dangerous and complex, so it’s best to seek the help of a qualified technician.
4. What other codes may be related to P0B60?
Other codes that may be related to P0B60 include P0B5E (hybrid/EV battery voltage system isolation fault) and P0B61 (hybrid/EV battery voltage sense L circuit high).
5. How can I prevent P0B60 from occurring in the future?
Regular maintenance of your hybrid/EV system can help to prevent issues like P0B60 from occurring. This includes regular battery checks and ensuring that all wiring and connections are in good condition.
Case Study
A customer brought in a 2015 Toyota Prius with the check engine light on. After using an OBD-II scanner, the mechanic determined that the code was P0B60. After checking the voltage sense H circuit, it was determined that the circuit was faulty. The mechanic repaired the circuit, and the issue was resolved.
Conclusion
P0B60 is a specific OBD-II code that relates to hybrid or electric vehicles. It’s important to diagnose and repair the issue quickly to prevent damage to the hybrid/EV system. If you’re not comfortable working on these vehicles yourself, it’s best to bring them to a qualified technician who can diagnose and repair the issue safely.
Resources
For further reading on hybrid/EV systems and repair, check out the following resources:
– HybridCars.com
– Electric Vehicle Association
– National Institute for Automotive Service Excellence (ASE)
20% off Additional Services at Valvoline Instant Oil Change
20% off Cabin Air Filter Replacement at Valvoline Instant Oil Change
