P09A5
Gate Select Position Circuit B High
What it means
P09A5 means Gate Select Position Circuit B High.
Check these first
- A short to power in the gate select position sensor B circuit
- An open in the sensor B ground
- A sensor B that reads high or fixed
- Corrosion at the sensor B connector
- A control module fault
What to do next
- Read gate select position sensor B voltage on a scan tool
- Check the circuit for a short to power
- Test the sensor B ground
- Inspect the sensor B connector
- Replace the sensor if the reading is fixed high
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.