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The PCM Blues

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=70556
Printed Date: May 18, 2025 at 1:06 AM


Topic: The PCM Blues

Posted By: effutu
Subject: The PCM Blues
Date Posted: January 11, 2006 at 4:52 PM

If 12v are sent through an immobilizer via the wire connected to the transponder ring, can it short a PCM? (PCM is obviously 5v) Can one determine if a PCM has been shorted without using a breakout box? My vehicle is a 1999 Mazda 626 ES. The pcm is a Ford EEC V.



Replies:

Posted By: effutu
Date Posted: January 11, 2006 at 5:04 PM
If the PCM is shut off due to repeated starts with a bad immobilizer will the obdII make a read.



Posted By: effutu
Date Posted: January 11, 2006 at 5:06 PM
Dealer initially read a P1624 and P1602 before clearing the codes. Now there are no codes.


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