P2320 AUDI – Ignition Coil 7 Secondary Circuit

P2320 AUDI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Engine may be running rough

P2320 AUDI Possible Causes

Faulty Ignition Coil 7,Ignition Coil 7 harness is open or shorted,Ignition Coil 7 circuit poor electrical connection

P2320 AUDI Description

The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. When the ignition coil driver is switched on, current rapidly builds up to a maximum value, determined by the coil inductance and resistance. When the current is switched off, the magnetic field collapses which induces a secondary high voltage surge and the spark plug is fired. This high voltage surge creates a flyback voltage which the PCM uses as a feedback during the ignition diagnostics. The PCM continuously monitors the ignition system for concerns. The P2320 code sets when the PCM detects a short to voltage in the circuit.