1990-95 FOUR CYLINDER ACCORD AND 1992-95 PRELUDE
See Figures 7, 8, 9, 10, 11 and 12
On 1990-95 Accord (except V-6) and 1992-95 Prelude, the codes are read from the check engine light after the two-wire service connector has been jumpered. On Accords, the service connector is under the dash on the passenger side. On Preludes, it is located behind the center console. Codes 1 through 9 are indicated by a series of short flashes; two-digit codes use a long flash for the first digit followed by the appropriate number of short flashes. For example, Code 14 would be indicated by 1 long flash followed by 4 short flashes. Codes are separated by a pause between displays. Multiple codes are transmitted in an alternating pattern. For example, a code 3 and 14 would be displayed as 3 short flashes (for Code 3) followed by the separator pause, then 1 long flash and 4 short flashes (for Code 14).
Fig. Fig. 7: Fault codes are read from the check engine light on most late-model vehicles
Fig. Fig. 8: On Accords, the service connector is located under the dash on the passenger side
Fig. Fig. 9: The service connector on Preludes is located behind the center console
In the event that a code is encountered which is not on the chart, re-count the number of flashes. If the code is truly wrong, it will be necessary to swap the ECU for a known-good unit and recheck. Since this can be expensive, you may wish to bring the car to a reputable repair facility if no other cause of the failure can be found. This may save you the expense of purchasing an unnecessary part.
- Use a jumper wire to connect the two terminals of the service connector together.
- Turn the ignition switch ON ; the check engine light will display any stored codes by rhythmic flashing.
- If no codes are displayed but a driveablity problem exits, testing of the system individual components is necessary to find the problem. If codes are displayed, follow the appropriate troubleshooting chart in this section.
Fig. Fig. 10: Fault code chart for 1990-93 Accords