3inchlift

I need to check for trouble codes in a 1990 renix 4.0. The haynes manual says the diagnostic connector is on the driver side fender well. I cant find it as I am not sure what it looks like. The manual doesnt show a picture. Is it a connector that I pull apart? Can any body give me a better idea as to where the connector is located?

iheartmyxj

im pretty sure the conectors you are looking for are under the hood on the passenger side with little yellow caps the only problem is i have never been able to find the right tool since it uses obd1 i think if you figure anything out let me know

3inchlift

To the best of my knowledge, a 1990 is pre obd1. You dont need a code reader, you just need to bridge 2 leads on the diagnostic connector and flash the codes. This connector is what I cant find.

Bustedknuckle

The connector is a Renix DBR2, best of luck finding one. Whats making you want to "scan" it?

freegdr

ive been looking fo ever aint gonna find one

freegdr

read thishttp://http://en.wikipedia.org/wiki/Renix

freegdr

nope did not work im looking for ti hang on

freegdr

ok go to this link and searc renix you can only get codes that way if you have a v6 engine they hade check engine lights

freegdr

http://http://en.wikipedia.org/wiki/Main_Page

whowey

Okay... we seem to go through this every few months.....

You can't check trouble codes on a Renix 4.0. The system doesn't store any...

The DRB2 connector(under the hood) connected to a live scanning system. There was a factory system and one from Snap-on. Have a fun time finding either... They were not terribly common back when, and are even rarer now. You however can check every single sensor output with a multimeter.

Billavista has a excellent series of articles on his site.

And freegdr... if you find a US market Jeep V-6 that is Renix, let me know... The 2.8 is a Chevy motor and used the Chevy control system(what little there was)

freegdr

go to the link and search renix as was stated above v6 are not renix

89Laredo

Your jeep is a "renix", the ECU is built by Renault/Bendix (known for their aeronautic/race engine management)
Renix is PRE OBD, there is a scanner, but its proprietary and I dont think the dealers even keep them around any more. It would be very hard to find one. It would be kinda useless anyway, Since The Renix ECU does not have much on the way of diagnostics.
The information that was not put into KAM or "Permanent" memory is not stored. This is information like "soft" codes, etc. Any "hard" codes (failures lasting more than 2 seconds) are kept in memory after the key is turned off. The fuel map is stored and so are other vehicle information.
There are no CELs since its PRE-obd and everything can be tested with a multimeter and some time.
The renix takes a few seconds to start, it has more parameters that need to be met before it will fire, unlike the newer models.

Bustedback

My Snap-on Brick scanner has the RENIX connector, never been used.

freegdr

Its for Amc and Renaults also.

cruiser54

Yep. MT2500 or DRB. I have the DRB. OP, what issues are you having?