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Engine-Codes – Ford – P1356 Ford

P1356 Ford Code - Loss Of Ignition Diagnostic Module Input To PCM

Quick Answer

The P1356 Ford code indicates a loss of ignition diagnostic module input to the Powertrain Control Module (PCM). Common causes include Faulty ignition coil, Worn out spark plugs, Damaged spark plug wires. 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
P1356 Ford indicates Loss Of Ignition Diagnostic Module Input To PCM.
Common causes
Common causes include Faulty ignition coil, Worn out spark plugs, Damaged spark plug wires.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1356 Ford Description

The P1356 Ford code indicates a loss of ignition diagnostic module input to the Powertrain Control Module (PCM). In simpler terms, this means that there is a communication issue between the ignition system and the PCM, which is a crucial component of the vehicle's engine management system. The ignition diagnostic module is responsible for monitoring and controlling various aspects of the ignition system, such as spark timing and voltage. When this communication is disrupted, it can have a significant impact on the vehicle's performance and efficiency.

OBDII Code P1356 Ford - Loss Of Ignition Diagnostic Module Input To PCM
P1356 Ford Code - Loss Of Ignition Diagnostic Module Input To PCM

Common Causes of P1356 Ford

  1. Faulty ignition coil
  2. Worn out spark plugs
  3. Damaged spark plug wires
  4. Wiring issues
  5. Malfunctioning PCM

Symptoms of P1356 Ford

  1. Engine misfires
  2. Rough idling
  3. Hesitation during acceleration
  4. Poor fuel economy
  5. Difficulty starting the vehicle

How to Fix P1356 Ford

  1. Diagnose the issue by using a scan tool to pinpoint the exact cause of the communication failure.
  2. Inspect and test the ignition system components, such as the ignition coil, spark plugs, and spark plug wires, for any signs of wear or damage.
  3. Check the wiring harness for any loose connections, damaged wires, or corrosion.
  4. If necessary, replace the faulty ignition system components or repair any wiring issues.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P1356 Ford

The typical repair costs for addressing the P1356 Ford code can range from $200 to $500, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise 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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