P0AAF

Hybrid/EV Battery Pack Air Temperature Sensor A Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Reduced vehicle power
Increased fuel consumption (for hybrids)
Dashboard warning
Reduced range (for electric vehicles)
Battery charging problems

Causes

Faulty battery temperature sensor
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Battery management module malfunction

How to Fix

Check the continuity of the temperature sensor circuit
Inspect the sensor connectors and connections
Check the resistance of the temperature sensor
Scan the battery management module for other errors
If necessary, replace the temperature sensor

Related codes

P0AAE P0AAB P0AAC