P2300
Ignition Coil A Primary Control Circuit Low
What it means
P2300 means Ignition Coil A Primary Control Circuit Low.
Check these first
- An ignition coil A primary control wire shorted to ground
- A failed ignition coil A
- An open coil A ground circuit
- Corrosion at the coil A connector
What to do next
- Check for spark at the cylinder fed by coil A
- Test the coil A primary control wire for a short to ground
- Check the coil A ground circuit
- Measure ignition coil A primary resistance
- Replace ignition coil A if the circuit tests good
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.