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obd2 electrical problems. - Honda Passport
The obd2 port in my 2000 passport is not able to read codes. My check engine light is on. I've had to replace several fuses to get the car headed in the right direction electrically. Why am I not getting power to my port? Is there any wirining schematics specifically for my odb2 port!
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Answers
your vehicle seems to be one that can flash the check-engine light with the actual code numbers, if you short pins 4 & 9 of the OBD2 connector with engine off, and then turn ignition key to ON, without starting car. count the long flashes , then count the short flashes, and those two digits are the code number. if more than one code, they will all flash in sequence. i found this info on an unofficial honda tech site - you may want to verify those pin numbers before trying the above.