P23xx fault codes: Ignition system

The primary and secondary circuits of the ignition coils, coil by coil. A coil fault usually causes misfires on the cylinder it feeds.

How to read this code

The letter P names the system: Powertrain. The next digit, 3, locates the fault: ignition system.

These codes are generic: they mean the same thing on every make. Some manufacturer tools display them with a two-digit suffix, such as P0101-00 or P010100: the suffix refines the fault type, and the base code keeps its meaning.

The codes of this family, part by part

Ignition coil

• 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
• P2306Ignition Coil C Primary Control Circuit Low
• P2307Ignition Coil C Primary Control Circuit High
• P2309Ignition Coil D Primary Control Circuit Low
• P2310Ignition Coil D Primary Control Circuit High