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Ignition Coil C Secondary Circuit Malfunction

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Severity

Medium

Can I keep driving?

Usually drivable, but get it diagnosed without delay.

First step

Disconnect the cylinder 3 coil or amplifier and check the control wire for battery voltage with the key on

  • PPowertrain
  • 1Manufacturer-specific
  • 3Powertrain (Other)
  • 62Sequence number

What does it mean?

P1362 is a Powertrain (engine, transmission, fuel system) fault code. It indicates: Ignition coil/amplifier, cylinder 3 - short to positive .

Symptoms

  • Cylinder 3 misfires or stops firing, producing a noticeable shake at idle
  • Check engine light on, flashing during periods of heavy misfire
  • Reduced power, hesitation and rough running under acceleration
  • Unburnt fuel smell from the exhaust and rising consumption
  • Possible extra cylinder 3 misfire codes stored at the same time

Likely causes

  • Control wire touching a powered circuit through worn or melted insulation
  • Water or corrosion in the coil connector creating a path from the supply pin to the control pin
  • Internal short inside the coil or amplifier between the feed and the switching side
  • Harness pinched against a powered stud or terminal during previous work
  • Faulty repair splice tying the control line into a power feed
  • Damaged connector seal letting moisture collect in the plug body
  • Module driver already damaged by the applied voltage

How to fix it

  1. Disconnect the cylinder 3 coil or amplifier and check the control wire for battery voltage with the key on
  2. Inspect the connector for water, corrosion and deposits between pins, then clean and dry it thoroughly
  3. Measure resistance between the coil supply and control terminals to find an internal short
  4. Inspect the harness between the coil and the module for pinched, melted or previously repaired sections
  5. Correct any faulty splice or reroute wiring that runs against powered terminals
  6. Repair the short first so a replacement coil or module is not immediately damaged
  7. Replace the coil or amplifier if it is internally shorted, then verify the control line switches correctly

Codes From the Same System

All Fault Codes

Related Similar Codes

This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.