Ignition Coil 12 Secondary Circuit


Table of contents

P2335 AUDI Possible Causes

  • Faulty Ignition Coil 12
  • Ignition Coil 12 harness is open or shorted
  • Ignition Coil 12 circuit poor electrical connection

How do I fix code P2335 AUDI?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Cost of diagnosing the P2335 AUDI code

  The cost of diagnosing the P2335 AUDI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P2335 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 P2335 code sets when the PCM detects a short to voltage in the circuit.

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