Ignition Coil B Primary Control Circuit Low

Check these first

• An ignition coil B primary control wire shorted to ground
• A failed ignition coil B
• An open coil B ground circuit
• Corrosion at the coil B connector

What to do next

1. Check for spark at the cylinder fed by coil B
2. Test the coil B primary control wire for a short to ground
3. Check the coil B ground circuit
4. Measure ignition coil B primary resistance
5. Replace ignition coil B if the circuit tests good
6. Clear the code and retest

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