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P1363

IC Cylinder 3 Not Toggling After Enable.

  • Chrysler
  • Powertrain
  • Manufacturer code
  • Medium severity

How this code is built

P
SystemPowertrain
1
Defined byThe manufacturer
3
AreaIgnition system or misfire
63
FaultThe specific fault in that area

What it means

On Chrysler, P1363 means the powertrain control module saw the ignition control (IC) circuit for cylinder 3 fail to toggle after the ignition control was enabled. In other words, the module commanded the coil or driver for cylinder 3 and did not see the expected switching signal in return. The exact circuit layout and the way the module monitors it depend on the model, engine and year.

Symptoms

  • Engine misfire or rough running, especially at idle
  • Malfunction indicator lamp on
  • Hesitation or loss of power under load
  • Hard starting or a long crank
  • Raw fuel smell or poor fuel economy

Possible causes

  • Faulty ignition coil or coil driver for cylinder 3likely
  • Damaged wiring, poor connection or corrosion in the cylinder 3 ignition control circuit (open circuit or short to ground or voltage)likely
  • Loose or corroded coil connector, or a poor earth or power supply to the coilpossible
  • Worn or fouled spark plug for cylinder 3 putting extra load on the coilpossible
  • Fault inside the powertrain control module ignition driverrare
  • Outdated control module software where the manufacturer has published a fix for this code on the specific modelrare

How to diagnose

  1. Read all stored and pending codes and the freeze frame data to see engine speed, load and temperature when it set, and check for other misfire or ignition codes
  2. Visually inspect the cylinder 3 coil, connector and harness for heat damage, chafing, oil contamination, water ingress and corrosion
  3. Check the connector pins for tightness and the coil power and earth feeds with a multimeter, using the model's wiring diagram
  4. Swap the cylinder 3 coil with another cylinder, clear the code and see whether the fault follows the coil
  5. Remove and inspect the cylinder 3 spark plug for wear, fouling and correct gap
  6. Test the control wire from the module to the coil for continuity and for shorts to earth or voltage, with the module connector disconnected
  7. Check the ignition control signal with a scope or suitable tester at the coil while cranking
  8. Check for manufacturer service bulletins or software updates for the specific model and engine before suspecting the module

How to fix

  • Replace the faulty ignition coil for cylinder 3
  • Repair or replace damaged wiring and connectors in the cylinder 3 ignition circuit
  • Clean and secure the connector terminals and restore good power and earth connections
  • Replace the spark plugs, ideally as a set, with the correct type and gap
  • Update the module software if a published update addresses this code for the vehicle, or repair or replace the module only after all other causes are excluded

Can I keep driving?

Medium severity

The car can be driven carefully for a short time to get it to a workshop, but avoid heavy loads and high revs. A persistent misfire can overheat and damage the catalytic converter, so get it fixed soon, and stop driving if the engine runs very roughly or the warning lamp flashes.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.

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