Engine-Codes - Ford - P1394 FORD

P1394 FORD - Glow Plug Circuit High Input Bank 2

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

P1394 FORD Possible Causes

  • Faulty glow plug relay
  • Faulty glow plug shunt
  • Faulty glow plugs
  • Glow plugs harness is open or shorted
  • Glow plugs circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How is the P1394 FORD 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.

Tech Notes

California trucks it has a GPCM (Glow Plug Control Module) instead of a GPR (Glow Plug Relay).

What is the cost to diagnose the P1394 FORD code

Labor: 1.0

The cost to diagnose the P1394 FORD 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.
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Possible Symptoms

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

P1394 FORD Meaning

The glow plug system is monitored when the glow plugs are commanded on for more than 35 seconds and battery voltage is between 11.5-14 volts.

More Information

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