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Obd Ii Connectivity Problem

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I have a scantron tool and just bought an 02 V6 626 today. It has a CEL. I plugged the scantron in to the OBD II connection port and my scantron doesn't get power. I checked the tool on another car and it worked. I pulled the OBD II connector out of its mounting bracket and checked all the pins to ensure none were loose or backed out. any ideas would be appreciated. I hear some cars have a fuse specifically for this diagnostic port.

thanks

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How old's your scan tool? Your car might need CanBus capabilities...Most newer Fords have a separate fuse for the OBD connector, not sure about Mazda but your owners manual will tell you

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If you're in the US, Autozone will check codes for free. I would go up there and see if the scanner they have can check your car. If Autozone can check your codes properly, you'll know that there is an incompatibility with your scanner.

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I have a scantron tool and just bought an 02 V6 626 today. It has a CEL. I plugged the scantron in to the OBD II connection port and my scantron doesn't get power. I checked the tool on another car and it worked. I pulled the OBD II connector out of its mounting bracket and checked all the pins to ensure none were loose or backed out. any ideas would be appreciated. I hear some cars have a fuse specifically for this diagnostic port.

thanks

I have an 01 626, and just went to Autozone yesterday to have a code pulled for a check engine light. They plugged the scanner in underneath the drivers side dash, and I had to turn the key for auxilary power, but not start the engine.

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Thanks Fellas, I'm hoping theres a separate fuse for the OBD II port connector. Tried two different scantron tools and neither would link. I believe any OBD II scantron tool should would on any OBD II car for reading codes. I'll update the thread when I isolate the problem.

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There are multiple OBD-II protocols, and as someone mentioned, later models ('03+ I believe, but some mfrs adopted it later) started using the CAN bus protocol, which requires a CAN bus compliant scan tool to use.

I don't believe any 626 model ever used the CAN bus. I have a crappy/generic $40 scan tool I bought at Harbor Freight that can talk to the 626 (we had a '99).

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There are multiple OBD-II protocols, and as someone mentioned, later models ('03+ I believe, but some mfrs adopted it later) started using the CAN bus protocol, which requires a CAN bus compliant scan tool to use.

I don't believe any 626 model ever used the CAN bus. I have a crappy/generic $40 scan tool I bought at Harbor Freight that can talk to the 626 (we had a '99).

There was a fuse. The OBD connector shares power with the Room Fuse. which is the cruise control and dome lights.... Code P0400. EGR. I'm all set. thanks

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I think the P0400 is the most common code with our cars....time to remove the TB and clean out the ports!

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