P0A0F
Engine Failed to Start
What it means
P0A0F means Engine Failed to Start.
Check these first
- A crank or cam position sensor fault
- A weak fuel pump or clogged filter
- An ignition coil or spark plug fault
- A starter or starter circuit fault
- A weak 12 volt battery
What to do next
- Check the battery voltage and charge as needed
- Check for spark and fuel pressure
- Scan for crank and cam sensor codes
- Check the starter circuit and relay
- Repair the failed system found
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.