P1389 FORD code

How do I fix code P1389?


  1. Turn ignition on with engine off. Using scan tool, check for DTCs. …
  2. Ensure ignition is on with engine off. Using scan tool, check for DTCs. …
  3. Using scan tool, check for DTCs and record FREEZE FRAME data. …
  4. Turn ignition off.

What code is P1389?

OBD II fault code P1389 is a manufacturer specific code, and on some applications, this code is defined as “Glow Plug Circuit High Side, Low Input”, and is set when the PCM (Powertrain Control Module) detects an abnormal input voltage in the “high side” of the glow plug control circuit on diesel engines.

What is an ASD relay?

One of these components is the automatic shutdown relay, commonly referred to as the ASD relay. The ASD relay is responsible for supplying switched 12-volt power to the vehicle’s injectors and ignition coils, allowing them to provide fuel and produce spark.

How do you test a jeep ASD relay?

Zitat von Youtube: Using this diagram right over here locate the proper relay for the automatic shut down relay which is right over here for us AST relay locate the right relay.

Can you bypass ASD relay?

There are two pins that control the automatic shutdown relay; #87 and #30. You will wear a jumper on those pins to enable you to bypass the automatic shutdown relay. If you critically follow the ASD relay wiring diagram and the steps given above, you will be able to bypass the relay with ease successfully.

How can you tell if a relay is blown?

Zitat von Youtube: Out. Sit it down right there take your other relay. Out. Alright and swap them and then see if the problem goes away with your horn see if it blows if it blows then you probably had a bad relay.