Is yours already a 4.2 facelift? The pre-facelift diesels might not support OBD-II ... but the petrols well do.

 

Nope, it's not the facelift. It's the first of the second generation ravs.

So i other words, my obd2 reader is useless on my car?

Does anyone know which protocol is used on pre-facelift diesels?

 

Hi,
Did you manage to resolve the issue? I got the same problem with my Rav4 2001 (same when it comes to protocol).
See my other post in here.
Appreciate if you can shed some light.
-Kaushalye

 

I doubt there is a problem with the elm 327 unit not reading a protocol or with scan tools. The problem is likely with the computers blue tooth or USB link. You did not say if you are using a blue tooth or USB unit. If it is blue tooth it's mostly likely your computers blue tooth driver. Usually problems with these devices are in the link from the OBD reader to the computer. If you have an android phone I strongly recommend the torq app by Ian Hawkins, it's an amazing application. I hope you get your unit working as I really like yours p.s. I am so envious of the d4d which I can not have in USA.

Kaushalye - try asking on the torq app forums. Just google it. Tons of professional mechanics and car tuners lurking there.

 

Don't know does this help anyone but I can confirm this setup working:

Car: RAV4 D-4D 2004 (facelift, with round fog lights)
Reader from DX: OBDII Bluetooth Car Diagnostic Cable - Black + Blue + Orange (DC 12V) - Free Shipping - DealExtreme
Phone: ZTE Blade Anrdoid v. 2.2.
App: Torque

 

The elm 327 won't work with the pre 2004 d4d

I have used my 327 for years on other cars just got a Rav 4 d4d face lift 2002 and found out after trying it about ten times that it won't read the codes on the pre 2004 models. Anything after 2004 it will work on just not the diesels before 2004. I thought I was going crazy tried it about 50 times. :surprise

 

Check this out will clear things up

Toyota (Auris, Avensis, Rav4, Yaris) compatible ELM 327 and OBD2 - Outils OBD Facile