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ECM Location?

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Old 12-06-2003, 01:41 PM   #1
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ECM Location?

Just wondering where the ECM on a 2003 is located, so that I could get the part # off of mine.

-Jesse
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Old 12-06-2003, 02:23 PM   #2
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What is ECM?
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Old 12-06-2003, 03:25 PM   #3
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I believe he means ECU (Electronic Control Unit). It is the main computer that controls the engine and electronics in the car. I believe its under the passenger side kick panel?
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Old 12-06-2003, 03:26 PM   #4
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The part number is not on the ECM. I took my ECM out when the hestitation TSB was issued and there is nothing on it except for a serial number. You have to use a Consult II to pull down the part number. The dealer showed me how this is done when I brought the car in for the TSB.
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Old 12-06-2003, 03:26 PM   #5
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Quote:
Originally Posted by jessefrank
Just wondering where the ECM on a 2003 is located, so that I could get the part # off of mine.

-Jesse
The FSm says that it is located "behind the instrument lower cover." You might be able to see it if you remove the glove box.
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Old 12-07-2003, 08:50 AM   #6
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The ECU is located on the floor directly behind the radio. You do NOT need to remove any glove box, dash, or vents to access it. There is a black plastic cover with 2 round plastic snaps that cover the ECU. From the driver's side, the cover is directly beside the gas pedal. Pull on the cover to remove it, and there is the ECU. The ECU has (4) 8mm screws that hold it to the mounting bracket. Then it slides out towards the passenger's side.

As for the part number, you need the Consult-II to get it. But you also need a code that is written on top of the ECU if you are looking for a junkyard spare. You can see this code from the passenger's side without removing the ECU from the mounting bracket (You will need a flashlight). The number should be A56-***-** or something like that.
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Old 03-24-2017, 09:50 AM   #7
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no he means ECM (electronic control module). been in business 63 yrs never heard it call unit
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Old 03-24-2017, 11:33 AM   #8
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Quote:
Originally Posted by studman View Post
The ECU is located on the floor directly behind the radio. You do NOT need to remove any glove box, dash, or vents to access it. There is a black plastic cover with 2 round plastic snaps that cover the ECU. From the driver's side, the cover is directly beside the gas pedal. Pull on the cover to remove it, and there is the ECU. The ECU has (4) 8mm screws that hold it to the mounting bracket. Then it slides out towards the passenger's side.

As for the part number, you need the Consult-II to get it. But you also need a code that is written on top of the ECU if you are looking for a junkyard spare. You can see this code from the passenger's side without removing the ECU from the mounting bracket (You will need a flashlight). The number should be A56-***-** or something like that.
Very right. You don't need Consult to get the part number however. Post your VIN here to get it:https://www.nissanpartsdeal.com/part...html?PNC=22611
That's if you want a new one. But if you must go to the junkyard or ebay then the number on the ECM is preferably used to match up. The older version could have this:3N A56-T64 ZP5; the updated version is:3M A56-U83 E43.
The number ends with for digits, i.e., 2419. It refers to the actual date of production of the car, and in this example means 19 April 2002 or 2Y26, 26 November 2002.

Last edited by Costee; 03-24-2017 at 11:40 AM.
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Old 03-24-2017, 12:47 PM   #9
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Originally Posted by Bruce Warnick View Post
no he means ECM (electronic control module). been in business 63 yrs never heard it call unit
ECU, ECM, PCM are all interchangable.
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Old 03-24-2017, 03:39 PM   #10
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Quote:
Originally Posted by Bruce Warnick View Post
no he means ECM (electronic control module). been in business 63 yrs never heard it call unit
Fun fact: you hadnt been in business for even 50 years when he made that post
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Old 03-25-2017, 04:50 PM   #11
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It's always fun trying to answer a 14 year old thread.
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Old 04-04-2017, 10:57 AM   #12
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Originally Posted by DennisMik View Post
It's always fun trying to answer a 14 year old thread.
- And I've owned a few cars since that comment was posted!!!
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