Error code
OBD2 P2321
OBD2P2321
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Ignition Coil 'H' Primary Control Circuit Low.
Severity
moderateCan drive but may experience poor performance and potential damage to other components.
Summary
P2321 indicates a low voltage issue in the primary control circuit of ignition coil H, which is part of the engine's ignition system.
Common Causes
- Wiring short to ground
Fixes
- Inspect and repair or replace the wiring related to ignition coil H.
FAQ
What does P2321 mean?
P2321 indicates a low voltage issue in the primary control circuit of ignition coil H.
How serious is P2321?
It's moderately serious. Driving with this code can lead to poor engine performance and potential damage to other components.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2300Ignition Coil 'A' Primary Control Circuit Low
- P2301Ignition Coil 'A' Primary Control Circuit High
- P2302Ignition Coil 'A' Secondary Circuit
- P2303Ignition Coil 'B' Primary Control Circuit Low
- P2304Ignition Coil 'B' Primary Control Circuit High
- P2305Ignition Coil 'B' Secondary Circuit
- P2306Ignition Coil 'C' Primary Control Circuit Low
- P2307Ignition Coil 'C' Primary Control Circuit High
- P2308Ignition Coil 'C' Secondary Circuit
- P2309Ignition Coil 'D' Primary Control Circuit Low
- P2310Ignition Coil 'D' Primary Control Circuit High
- P2311Ignition Coil 'D' Secondary Circuit