P0ACE

Hybrid/EV Battery Temperature Sensor C Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Unstable battery temperature readings
Hybrid system power reduction
Extended charging time
Check engine light comes on
Reduced performance of the hybrid system

Causes

Damage to the sensor wiring harness
Poor contact in the sensor connector
Temperature sensor fault C
Problems with the battery management module
Corrosion of contacts in the sensor circuit

How to Fix

Check the integrity of the sensor wiring harness
Clean and check contacts in connectors
Test the temperature sensor with a multimeter
Replace faulty temperature sensor
Check the operation of the battery management module

Related codes

P0ACF P0ACD P0A0F