P09A8
Gate Select Position Circuit C Low
What it means
P09A8 means Gate Select Position Circuit C Low.
Check these first
- A short to ground in the gate select position sensor C circuit
- A sensor C that reads low or fixed
- A worn sensing element inside sensor C
- Corrosion at the sensor C connector
What to do next
- Read gate select position sensor C voltage on a scan tool
- Check the circuit for a short to ground
- Inspect the sensor C connector
- Compare sensor C output through the gate range
- Replace the sensor if the low reading persists
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.