Engine-CodesCadillac – P1366 Cadillac

P1366 Cadillac Code - Ignition Control Cylinder 6 Not Toggling AFter Enable

Quick Answer

The P1366 Cadillac diagnostic trouble code indicates that there is an issue with the ignition control for cylinder 6 in the engine. Common causes include Faulty ignition control module, Defective ignition coil for cylinder 6, Worn or fouled spark plug in cylinder 6. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1366 Cadillac indicates Ignition Control Cylinder 6 Not Toggling AFter Enable.
Common causes
Common causes include Faulty ignition control module, Defective ignition coil for cylinder 6, Worn or fouled spark plug in cylinder 6.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1366 Cadillac Description

The P1366 Cadillac diagnostic trouble code indicates that there is an issue with the ignition control for cylinder 6 in the engine. Specifically, the code signifies that the ignition control for this cylinder is not toggling after being enabled. This can lead to a misfire in cylinder 6, affecting the engine's performance and efficiency.

OBDII Code P1366 Cadillac - Ignition Control Cylinder 6 Not Toggling AFter Enable
P1366 Cadillac Code - Ignition Control Cylinder 6 Not Toggling AFter Enable

Common Causes of P1366 Cadillac

  1. Faulty ignition control module
  2. Defective ignition coil for cylinder 6
  3. Worn or fouled spark plug in cylinder 6
  4. Damaged wiring or connections related to cylinder 6
  5. ECM (Engine Control Module) issues affecting ignition control for cylinder 6

Symptoms of P1366 Cadillac

  1. Rough idle: The engine may vibrate or shake abnormally at idle.
  2. Loss of power: The vehicle may struggle to accelerate or maintain speed.
  3. Decreased fuel efficiency: The engine may consume more fuel than usual.
  4. Engine stalling: The vehicle may suddenly shut off while driving or idling.

How to Fix P1366 Cadillac

  1. Diagnose the specific cause of the issue using a scan tool to identify the faulty component.
  2. Replace the faulty ignition control module, ignition coil, or spark plug in cylinder 6 as needed.
  3. Check and repair any damaged wiring or connections related to cylinder 6.
  4. Clear the diagnostic trouble codes from the ECM and test drive the vehicle to ensure the issue is resolved.
  5. Perform a final inspection to confirm proper operation of the ignition control for cylinder 6.

Cost to Fix P1366 Cadillac

The typical repair costs for addressing the P1366 Cadillac code can vary depending on the specific cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can fluctuate, so it's advisable to obtain quotes from multiple sources for a more accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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