Hybrid Battery Pack Voltage Measurement Problem
This code indicates a problem with the voltage measurement of the hybrid battery pack.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The car has a hybrid battery that supplies power to the electric motor. When it detects that something is wrong with how the battery's voltage is being measured, it sets this code. It might mean the battery isn't charging properly or a sensor is faulty.
What the computer is actually seeing
The hybrid control module is monitoring the battery voltage and notices it’s outside of the expected range (typically below 150V or above 600V during specific modes) or fluctuating unexpectedly.
What a healthy reading looks like
Expected battery voltage is between 200V - 400V under normal operational conditions, depending on the system design.
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 battery connections and wiring for corrosion or looseness. Fix any issues found. Decision: If connections are good, move to step 2. If issues were found, repair and clear the code.
Common causes
- Faulty voltage sensor
- Bad connections at the battery
- Damaged battery pack
- Fault in hybrid control module
- Corrosion on terminals
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive if this code is present?
No, driving with this code can risk further battery damage and affect vehicle operation.
Will the code come back after clearing it?
It can return if the underlying issue isn't resolved, especially if it's related to a faulty sensor or battery.
Why does this issue seem to pair with other battery codes?
Many battery-related codes are interlinked as they relate to the hybrid system's voltage and charging processes.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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