P2321

DTC P2321, sometimes indicated as P232100 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the ignition system causing ignition coil "h" primary control circuit low.

Possible causes of this DTC include:
- A fault in the ignition coil "H" primary control circuit
- A fault in the ignition coil "H" secondary control circuit
- A fault in the ignition coil "H" primary wiring harness
- A fault in the ignition coil "H" secondary wiring harness
- A fault in the PCM

• P2321: Ignition Coil H Primary Control Circuit Low
• P2321: Ignition Coil "H" Primary Control Circuit Low
• P2321: Ignition coil H, primary circuit – circuit low
• P2321 00: Ignition coil H, primary circuit - circuit low