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P1389

No Auto Shutdown Relay Output Voltage At PCM

1998-2003 Dodge Durango 3.9L V6

Critical SeverityPowertrain

Description

The PCM is not receiving the ASD relay output sense voltage. This feedback signal tells the PCM that the ASD relay has energized and is providing power to injectors and coils. Without this signal, the PCM may shut down the engine or prevent starting.

Symptoms

  • Engine cranks but will not start
  • Engine starts then immediately dies
  • No spark and no injector pulse
  • Check Engine Light

Common Causes

  • Faulty ASD relay not closing
  • Open circuit in ASD sense wire to PCM
  • Blown ASD fuse
  • Corroded ASD relay connector
  • PCM connector corrosion at sense pin

Diagnostic Steps

  1. Check ASD fuse and relay operation
  2. Measure voltage at PCM ASD sense pin with relay energized
  3. Test ASD relay coil and contacts
  4. Inspect wiring from ASD relay output to PCM sense input
  5. Check for corrosion at PCM connector

Repair Notes

Replace the ASD relay if it is not closing; repair the sense wire from the relay to the PCM if open.

Related Codes

P0230Fuel Pump Primary Circuit MalfunctionP1388Internal Control Module Knock Control CircuitP1388Internal Control Module Knock Control CircuitP1388Internal Control Module Knock Control CircuitP1388Internal Control Module Knock Control CircuitP1388Internal Control Module Knock Control CircuitP1388Auto Shutdown Relay CircuitP1388Auto Shutdown Relay CircuitP1388Auto Shutdown Relay CircuitP1388Auto Shutdown Relay Circuit

Other Powertrain Codes

P1389 on Other Vehicles

Common Questions

What does code P1389 mean on a 1998-2003 Dodge Durango?

P1389 stands for "No Auto Shutdown Relay Output Voltage At PCM". The PCM is not receiving the ASD relay output sense voltage. This feedback signal tells the PCM that the ASD relay has energized and is providing power to injectors and coils. Without this signal, the PCM may shut down the engine or prevent starting.

What are the symptoms of P1389 on a Dodge Durango?

Common symptoms of P1389 include: Engine cranks but will not start, Engine starts then immediately dies, No spark and no injector pulse, Check Engine Light.

What causes P1389 on a 1998-2003 Dodge Durango?

Common causes of P1389 include: Faulty ASD relay not closing, Open circuit in ASD sense wire to PCM, Blown ASD fuse, Corroded ASD relay connector, PCM connector corrosion at sense pin.

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