What are the common causes of P0B6E?

A K circuit voltage reading outside the expected window. A drifting K voltage tap. A high resistance joint in the K sense lead. A weak cell at the K tap. A calibration fault in the K sense channel.

Compare K circuit voltage to adjacent taps. Monitor K voltage across a drive cycle. Inspect the K sense lead for added resistance. Test the K cell tap under load. Replace the sense module if K stays out of range. Clear the code and retest.

P0B6E

Hybrid/EV Battery Voltage Sense K Circuit Range/Performance

System: Powertrain control (P code)
Lamp: Check Engine Light
Category: Powertrain - Hybrid Propulsion

What it means

P0B6E means Hybrid/EV Battery Voltage Sense K Circuit Range/Performance.

Check these first

A K circuit voltage reading outside the expected window
A drifting K voltage tap
A high resistance joint in the K sense lead
A weak cell at the K tap
A calibration fault in the K sense channel

What to do next

Compare K circuit voltage to adjacent taps
Monitor K voltage across a drive cycle
Inspect the K sense lead for added resistance
Test the K cell tap under load
Replace the sense module if K stays out of range
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.