P0AF3

Drive Motor Inverter Temperature Sensor B Circuit Range/Performance

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–133 (est.)

Symptoms

Malfunction indicator light comes on
Reduced motor performance
Transferring the system to emergency mode
Incorrect temperature readings on the scan tool
Disabling the regenerative braking system

Causes

Inverter B temperature sensor fault
Open or short circuit in the sensor circuit
Bad contacts in connectors
Circuit Grounding Problems
Inverter control module malfunction

How to Fix

Check Inverter B temperature sensor parameters using a scan tool
Inspect the sensor wiring harness and connectors for damage.
Check sensor resistance and reference voltage
If necessary, replace the inverter temperature sensor
Check and reflash the inverter control module if necessary

Related codes

P0AF0 P0AF1 P0AF2