My wife's 96 once had an issue where the state mandated annual inspection code reader device couldn't connect via the OBD2 port.
Long story short, after puzzling over a wiring diagram for a while and futzing around with a multimeter, it turned out that one of the wires that should have been grounded wasn't. I grounded it (externally) and the port was back in action.
No other signs of electrical issues in the car, just that ungrounded wire on the OBD2 port.
Long story short, after puzzling over a wiring diagram for a while and futzing around with a multimeter, it turned out that one of the wires that should have been grounded wasn't. I grounded it (externally) and the port was back in action.
No other signs of electrical issues in the car, just that ungrounded wire on the OBD2 port.
