Engine-Codes - Mercury - P1246 MERCURY

P1246 MERCURY - Alternator Load Input Failed

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1246 MERCURY Possible Causes

  • Faulty Alternator/Generator
  • Alternator/Generator harness is open or shorted
  • Alternator/Generator circuit poor electrical connection
  • Damaged Powertrain Control Module (PCM)

How is the P1246 MERCURY code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1246 MERCURY code

Labor: 1.0

The cost to diagnose the P1246 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1246 MERCURY Meaning

The Powertrain Control Module (PCM) monitors generator load from the generator/regulator in the form of frequency. The frequency range is determined by the temperature of the voltage regulator where 97% represents full load, below 6% means no load.

More Information

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