The P0B61: Hybrid Battery Voltage Sense “H” Circuit High code indicates that the voltage reading from the hybrid battery voltage sense “H” circuit is higher than expected. This could be caused by a faulty voltage sensor, an electrical issue, or wiring problems. If left unresolved, high voltage readings can impact the performance of the hybrid system and lead to improper battery management.
P0B61 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0B61: Hybrid Battery Voltage Sense “H” Circuit High |
| Is it serious? | Yes, high voltage readings can affect hybrid battery management and system performance. |
| Possible causes | – High voltage reading from sense H – Faulty sensor – Electrical issue |
| How to diagnose? | – Measure voltage sense H reading – Test sensor functionality – Inspect electrical system |
P0B61 Meaning
The P0B61 code is set when the voltage sense “H” circuit in the hybrid battery detects a voltage higher than the specified range. This could be caused by a malfunctioning voltage sensor, electrical issues, or wiring problems. High voltage readings can result in inaccurate battery monitoring, affecting the hybrid system’s performance.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any additional related codes that may provide further context for the issue. | OBD-II Scanner |
| Measure Voltage Sense H Reading | Use a multimeter to measure the voltage in the sense H circuit and compare it to manufacturer specifications. | Multimeter |
| Test Sensor Functionality | Test the voltage sensor in circuit H to ensure it is functioning correctly. Replace the sensor if necessary. | Multimeter, Diagnostic Tool |
| Inspect Electrical System | Inspect the wiring and electrical connections for damage, corrosion, or shorts that could cause high voltage readings. | Flashlight, Multimeter, Safety Gloves |
| Clear the Code and Test Drive | After repairs, clear the code and take the vehicle for a test drive to verify that the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Rescan the vehicle after the test drive to confirm that the P0B61 code does not return. | OBD-II Scanner |
Free PDF: How to choose OBD2 scanner
I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.
Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)