You can check trouble codes by turning the key on, off, on, off, on. Then watch the Check engine light and count the flashes. Check this link for codes and more info: http://autorepair.about.com/library/ts/obd-i/bl-dtcs-55a.htm?once=true&
The scanner plug in is under the dash on the drivers side and is the OBD1 system
It is above the onboard edge of the ful tank.
On a 2000 Honda accord ex
The engine diagnostic connection on a 1994 Jaguar XJS is typically located near the passenger side footwell, under the dashboard. It can be found near the central console, often behind a panel or cover. This connection is used for diagnostic purposes and allows technicians to access the vehicle's onboard diagnostic system.
Ah, a classic 1994 Chrysler New Yorker! To ensure its smooth purring, you'll want a diagnostic scanner that's OBD-II compatible. This type of scanner can read and interpret the car's onboard diagnostics, helping you pinpoint any pesky problems that might be lurking beneath the hood.
The diagnostic plug on a 1996 Oldsmobile Ciera SL is typically located underneath the dashboard on the driver's side. It is often situated near the steering column or fuse box. The diagnostic plug is used for connecting a diagnostic scanner to retrieve information about the vehicle's onboard computer system for troubleshooting and maintenance purposes.
The diagnostic connector for a 1994 Plymouth Acclaim is located under the dashboard on the driver's side. Specifically, it is typically found near the steering column, often mounted on or near the fuse box. This connector is used for connecting a diagnostic scanner to retrieve trouble codes from the vehicle's onboard computer system.
It is located at the stern
In a 1988 Nissan D21, the diagnostic connector is typically located under the dashboard on the driver's side, near the steering column. It may be housed in a plastic cover or be exposed, and is often identified by a rectangular shape with multiple pins. This connector is used for accessing diagnostic trouble codes from the vehicle’s onboard computer.
The diagnostic plug for a 1996 Acura Integra is located under the driver's side dashboard, near the steering column. It is typically found above the accelerator pedal, and you may need to remove a cover or panel to access it. This OBD-I connector is used for connecting a diagnostic scanner to retrieve trouble codes from the vehicle's onboard computer system.
OBD 2
The diagnostic port on a 1998 Chevrolet Blazer is located under the dashboard, near the driver's side. Specifically, it can be found just above the brake pedal and to the left of the steering column. You may need to remove a cover or look closely to see it, as it can be somewhat hidden. This port is used for connecting a diagnostic scanner to read trouble codes from the vehicle's onboard computer.