- Yes, it matters what car the module comes from. Some cars have more relays inside than others. The SC doesn't use all the pins in the connector. Obviously, if you swap an IRCM with no fuel pump relay into a car that requires it, the fuel pump won't run. Other, more subtle, effects pop up, too. For example: I have been running a non-SC Thunderbird IRCM for a little while (long story). Everything on my SC works great, including the cooling fan. Unfortunately, even though there are enough relays inside for the SC, the operation of the AC clutch relay on the later cars is not exactly the same as on the SC. What that means is that the relay stays energized at all times and drains my battery if I let the car sit for more than a day or so. But in other respects, the car works great.
- There's no way to "re-code" an IRCM. There's no memory or anything inside, just pieces and parts. If you want to modify its operation, solder will be involved.
- What was the problem with the SMP reman IRCM? Car just stopped running?
- What ground did you fix and when? Was it the small ground connection that sprouts from the negative battery cable clamp?
- In the picture of your IRCM tester, are you sure the module is plugged in all the way to the tester connector? It looks loose. Maybe the picture is just deceptive.
- That tester is a very old model, which is why there are only 6 applications listed. It won't work on later model IRCMs (or at least it's not guaranteed to work, though applications vary as mentioned above).
- Have you tested the tester with an IRCM tester tester?
