How do you reset the PCM?
How Can I Reset the PCM on My Car?Open the hood of the vehicle.Disconnect the negative battery cable from the battery.
Use a wrench to loosen the lock nut, and pull the cable off.
This cuts the power to the PCM.
Wait for five minutes.
Reconnect the negative battery cable to the battery and close the hood of the vehicle.
The PCM is now reset..
Is there a fuse for the ECM?
The ECM 1 is one such computer; it has a fuse is installed to protect the computer from sudden power surges or other component damage — the fuse will blow before any damage can reach the ECM. Many component defects can cause your ECM 1 fuse to blow.
How do I know if my ECM relay is bad?
Symptoms of a Bad or Failing ECM-Power RelayNo power when the key is inserted. One of the first symptoms of a problem with the ECM power relay is no power when the key is inserted. … Engine will not start. Another common symptom of a problem with the ECM power relay is an engine that will not start or turn over. … Battery drain or dead battery.
Where is the ECM fuse located?
The fuse box is located on the passenger side next to the battery. When your vehicle has properly warmed up then you want to turn your vehicle back off and unplug both fuses, cut power by disconnecting the battery .
Where is the PCM located?
It is always a good idea to consult your vehicle’s owner’s manual to find the exact location of your Dodge’s PCM, but typically they are found in the engine compartment, under the passenger floorboard, under the seats, or behind the kick panels.