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P1612: IFI Control Module N37 Voltage Circuit 15

MERCEDES VOLKSWAGEN JAGUAR BUICK CADILLAC CHEVY GM GMC
Severity
Medium
System
Manufacturer-Specific Powertrain

What Does P1612 Mean?

P1612 is a manufacturer-specific diagnostic trouble code: IFI Control Module N37 Voltage Circuit 15. This code applies to MERCEDES, VOLKSWAGEN, JAGUAR, BUICK, CADILLAC vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1612

Common Causes

Frequently Asked Questions

What does P1612 mean?
P1612 indicates: IFI Control Module N37 Voltage Circuit 15. The vehicle's computer has detected that the IFI Control Module N37 Voltage is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code P1612?
You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1612 for extended periods may cause additional problems.
How much does it cost to fix P1612?
Repair costs for P1612 typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

  • 🔧 Inspect and repair IFI Control Module N37 Voltage wiring and connectors
  • 🔧 Replace faulty IFI Control Module N37 Voltage
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

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