P0A4B
Generator Position Sensor Circuit
This code indicates generator position sensor circuit. It relates to the hybrid powertrain and may affect performance, emissions, or drivability depending on the exact failure.
Generator Position Sensor Circuit
Common causes
- medium
High-voltage component fault
Battery modules, inverters, or drive motors can set hybrid-system codes.
Typical part cost: $100-400
- medium
Sensor or coolant issue
Temperature and position sensors, or cooling-system faults, are common causes.
Typical part cost: $100-400
See all causes + fix costs
Create a free Wrenchify account to unlock the rest for P0A4B.
Unlock causesFree forever · No credit card
First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
Get the full step-by-step diagnosis
Create a free Wrenchify account to unlock the rest for P0A4B.
Unlock diagnosisFree forever · No credit card
Related codes
See related trouble codes
Create a free Wrenchify account to unlock the rest for P0A4B.
Unlock related codesFree forever · No credit card
Frequently asked questions
What does P0A4B mean?
P0A4B means "Generator Position Sensor Circuit". It is a generic OBD-II code that points to a fault in the hybrid powertrain.
Can I keep driving with this code?
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
Get the full P0A4B diagnosis for your vehicle
Year, make, model + step-by-step repair help — free plan included.