P0AC6

Hybrid/EV Battery Temperature Sensor B Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$22–89 (est.)

Symptoms

Check Engine light comes on
Reduced performance of the hybrid system
The car may go into emergency mode
Low battery power
Errors in the battery cooling system

Causes

Battery temperature sensor fault B
Open or short circuit in the sensor circuit
Poor contact in the sensor or control module connectors
Wiring damage
Battery management module malfunction

How to Fix

Check resistance and temperature sensor readings
Inspect the sensor circuit for damage
Check connections and contacts in connectors
If necessary, replace the temperature sensor
Test the battery management module

Related codes

P0AC5 P0AC7 P0AC8