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P1662 Ford Code - IDM_EN Circuit Failure

Quick Answer

The P1662 Ford diagnostic trouble code (DTC) refers to an IDM_EN Circuit Failure. Common causes include Faulty IDM_EN circuit wiring, Corrosion or damage to IDM_EN circuit connectors, Failed IDM module. 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
P1662 Ford indicates IDM_EN Circuit Failure.
Common causes
Common causes include Faulty IDM_EN circuit wiring, Corrosion or damage to IDM_EN circuit connectors, Failed IDM module.
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 Aug 30, 2024
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Code P1662 Ford Description

The P1662 Ford diagnostic trouble code (DTC) refers to an IDM_EN Circuit Failure. IDM stands for Injector Driver Module, which controls the fuel injectors in a diesel engine. The IDM_EN circuit is responsible for enabling the IDM to function properly. When this circuit fails, it can lead to issues with fuel injection timing, fuel delivery, and overall engine performance. This can result in rough idling, misfires, reduced power, and potentially even engine stalling. If left unaddressed, it can cause further damage to the engine and potentially lead to costly repairs.

OBDII Code P1662 Ford - IDM_EN Circuit Failure
P1662 Ford Code - IDM_EN Circuit Failure

Common Causes of P1662 Ford

  1. Faulty IDM_EN circuit wiring
  2. Corrosion or damage to IDM_EN circuit connectors
  3. Failed IDM module
  4. Electrical issues within the IDM_EN circuit
  5. Software or programming issues in the engine control module (ECM)

Symptoms of P1662 Ford

  1. Rough idling
  2. Engine misfires
  3. Reduced power
  4. Engine stalling
  5. Illumination of the check engine light

How to Fix P1662 Ford

  1. Inspect IDM_EN circuit wiring and connectors for damage or corrosion.
  2. Test IDM module for proper functioning.
  3. Check for any loose connections or shorts in the electrical system.
  4. Repair or replace any damaged wiring or connectors.
  5. Reset engine control module (ECM) and clear the DTCs.

Cost to Fix P1662 Ford

The cost of repairing a P1662 Ford code can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. However, this is just an estimate, and actual costs may be higher or lower based on the extent of the repair needed. It's recommended to consult with a professional mechanic for a more accurate cost 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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