How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Your Own Question
Ron
Ron, ASE Certified Technician
Category: Car
Satisfied Customers: 35855
Experience:  ASE Certified Tech
7276279
Type Your Car Question Here...
Ron is online now
A new question is answered every 9 seconds

Isuzu Rodeo: May i have the pin diagram for thr OBD2 CONNECTOR.

This answer was rated:

May i have the pin diagram for thr OBD2 CONNECTOR. To test for power
Hello and welcome to Justanswer,

The power pin on your 1999 Data Link connector is the #16 pin from the same fuse as the Horn fuse (10 amp) in the under hood fuse panel . See the enclosed diagram.


graphic
Customer: replied 4 years ago.

Okay, i just hooked my scanner and it turned on but it had no communication to the ecm. Where do I need to look to fix the data communication.

Have you checked the fuse Anton?
Customer: replied 4 years ago.

well which fuse is it?

Its the #2 fuse in the under hood panel. See the enclosed diagram.

graphic
Customer: replied 4 years ago.

okay, that fuse is good. I just cant communicate to the ecm. my scanner powers up.


 


It is a Solus Pro

If your sure you have a good working scanner and your running the right program and the fuse is good and the scanner will not communicate then this usually means the PCM is bad.
Customer: replied 4 years ago.

okay, if pcm is bad was does it run?


Let you know, i did have another vehicle that had a simular problem. I had to replace the data, ground, and positive wires to the OBD connector and it worked.

You may want to try the same thing with this one as well , a new PCM can run up to $1000 for a new one. I would also make sure your scan tool is working as it should and is not defective.
Customer: replied 4 years ago.

well, it reads my F350 Powerstroke. Also, a delership could not read it either. I guess I am replacing wires. it is pin #2 and 6 that I need to look at?

I would have to agree, recheck the wiring and if it checks okay then its likely a bad PCM
Ron and 9 other Car Specialists are ready to help you
Customer: replied 4 years ago.

okay, need some more help.


I have 8 wires and the HOT (pin 16) is not a white wire but a green/yellow

Pin #16 is the power supply wire, the diagram shows it to be white but it could be green/white .
Ron and 9 other Car Specialists are ready to help you