Engine-Codes - Generic - P1389

P1389 - No Auto Shutdown Relay Voltage At Powertrain Control Module

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

P1389 Possible Causes

  • Faulty Auto Shutdown (ASD) Relay
  • Auto Shutdown (ASD) Relay harness is open or shorted
  • Auto Shutdown (ASD) Relay circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How is the P1389 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 P1389 code

Labor: 1.0

The cost to diagnose the P1389 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)

P1389 Meaning

The Auto Shutdown (ASD) relay voltage is monitored with the engine running, battery voltage more than 10.4 volts and engine speed more than 400 RPM. The Diagnostic Trouble Code (DTC) will set in the Powertrain Control Module (PCM) memory when PCM does not sense voltage when ASD relay is energized.

More Information

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Information for specific makes

  • P1389 AUDI Engine Control Module 2 Defective
  • P1389 CHRYSLER No Auto Shutdown Relay Voltage At Powertrain Control Module
  • P1389 DODGE No Auto Shutdown Relay Voltage At Powertrain Control Module
  • P1389 FORD Glow Plug Circuit High Side Low Input
  • P1389 JEEP No Auto Shutdown Relay Voltage At Powertrain Control Module
  • P1389 RAM No Auto Shutdown Relay Voltage At Powertrain Control Module
  • P1389 VOLKSWAGEN Engine Control Module 2 Defective

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