01 Experts Say Most People Use Air Conditioning Wrong And It's… • 02 The Technology That Allows Mechanics to Diagnose Cars Witho… • 03 Diesel Particulate Filter (DPF) Cleaning: DIY vs. Professio… • 04 Why Your Garage Has Customers But No Profit • 05 Direct Injection's Dark Secret: How Modern Engines Destroy … • 06 P0023 B camshaft position - actuator circuit (Bank 2) • 07 P0420 Code Explained: Catalyst System Efficiency Below Thre… • 08 Discover the Power and Performance: Popular Toyota Engines … • 09 Unleashing the Power of Diesel: A Comprehensive Guide to Co… • 10 This Is How Animal Hides Are Turned Into Car Leather •

DTC codes / Chrysler codes / P1363

P1363 · ChryslerIC Cylinder 3 Not Toggling After Enable

P1363 on Chrysler vehicles means the powertrain control module (PCM) has enabled the ignition coil for cylinder 3 but has not detected the expected voltage toggle on the coil's feedback circuit, indicating the coil is not firing or the feedback signal is missing. The PCM monitors the coil primary circuit for a rapid on-off transition after enable, and when that transition never occurs, it sets this manufacturer-specific code.

SystemPowertrain
Code typeChrysler specific
SeverityMedium
Fix difficultyIntermediate
AreaIgnition system and misfire

Symptoms you may notice

  • Check engine light illuminated, often with no other noticeable symptoms
  • Rough idle or noticeable misfire at idle and low speeds
  • Hesitation or stumble during acceleration
  • Reduced engine power or limp mode in some cases
  • Shaking or vibration felt through the steering wheel and seat
  • Slightly higher fuel consumption due to incomplete combustion

Common causes, most likely first

  1. Faulty ignition coil on cylinder 3 (open primary or secondary winding)
  2. Damaged or corroded electrical connector at the cylinder 3 coil
  3. Open or shorted wire in the coil control circuit between the PCM and coil
  4. Failed spark plug or excessive plug gap causing coil stress
  5. PCM driver circuit failure for cylinder 3 coil control
  6. Poor engine ground affecting coil operation
  7. Aftermarket coil with incompatible feedback characteristics

How to diagnose and fix it

  1. Scan all modules for stored and pending codes, and record freeze-frame data to confirm the fault conditions
  2. Inspect the cylinder 3 ignition coil connector and wiring for corrosion, chafing, or loose pins
  3. Swap the cylinder 3 coil with a known-good coil from another cylinder and see if the code follows the coil
  4. Check spark plug condition and gap on cylinder 3, replacing if worn or fouled
  5. Measure resistance of the cylinder 3 coil primary and secondary windings and compare to specification
  6. Backprobe the coil control circuit at the PCM and coil to check for an open or short, and verify the feedback signal toggles with a lab scope
  7. If wiring and coil test good, diagnose the PCM driver circuit and replace the PCM only after confirming all other possibilities

Why cylinder 3 coil codes mislead

  • A coil that ohms out within specification can still fail under load, so resistance testing alone often misses the root cause of P1363.
  • The feedback toggle the PCM looks for is a fast voltage spike, and a dirty or loose connector can attenuate that signal even when the coil fires normally.
  • Technicians sometimes replace the PCM prematurely when the real problem is a chafed wire in the coil harness near the valve cover.
  • This code can be set by a spark plug that is worn beyond gap specification, which overloads the coil and prevents the expected feedback toggle.
  • Aftermarket coils with different internal suppression can cause P1363 even though they function electrically, so stick with OEM-spec parts.

Can I keep driving with P1363?

You can usually drive the vehicle short distances to a repair shop, but avoid heavy acceleration and prolonged driving because unburned fuel can damage the catalytic converter. If the engine is misfiring severely or flashing the check engine light, stop driving and have it towed.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for Chrysler vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage