High Voltage Battery Pack B Positive Current Sensor
High voltage battery current sensor reading is out of range.
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What it means (plain English)
The sensor that monitors how much current goes into or out of the high voltage battery is giving incorrect readings, which can affect battery performance and management.
What the computer is actually seeing
The vehicle's computer is detecting that the current flow readings from the positive current sensor are either too high or too low compared to expected values.
What a healthy reading looks like
The current should typically be within ±50A during normal operation.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect the wiring and connectors for the positive current sensor. Look for signs of damage or corrosion. If any issues are found, repair or replace as needed.
- 22. Measure the voltage across the sensor connector with the vehicle in the on position (not running). There should be around 5V at the signal wire. If not, trace back to the vehicle battery's harness and repair any issues found.
- 33. Conduct a resistance test on the sensor itself. It should show a resistance value matching the manufacturer's spec. If it's open or shorted, replace the sensor.
- 44. If the wiring and sensor are good, verify the operation of the battery management system with a scan tool. If there's a fault in the management system, repair it accordingly.
Common causes
- Faulty positive current sensor
- Wiring issues or corrosion on the sensor harness
- Battery management system malfunction
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive as it can lead to suboptimal battery performance or failure.
Will this code come back after clearing?
If the underlying issue isn't fixed, yes, it will most likely return.
Why does this code show alongside battery-related codes?
This code indicates a problem with the current sensor, which is crucial for the battery management system that detects battery performance.
Working a real vehicle right now?
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