P2303 OBD-II

P2303

Technical Definition:

(Ignition Coil B) Primary Control Circuit Low

Trouble Code: P2303
Address: 0x2303
System: Powertrain
Subsystem: Ignition System or Engine Misfire
Technical Description:

Possible Causes:

Possible Symptoms:

Ignition Coil 1 Circuit Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Ignition Coil 1
– Ignition Coil 1 harness is open or shorted
– Ignition Coil 1 circuit poor electrical connection

Specific Makes:

– Engine may be running rough