Using Service Check Signal Circuit
- With the ignition switch OFF, connect the Honda PGM Tester, or equivalent, to the 16P Data Link Connector located under the dash on the driver's side.
- Short the SCS circuit to body ground using the Honda PGM Tester.
- Turn the ignition switch ON.
- Record the DTC.
- The blinking frequency indicates the DTC. DTCs are indicated by a series of long and short blinks. See Fig 1
. Add the long and short blinks together to determine the DTC. After determining the DTC, refer to DIAGNOSTIC TROUBLE CODE DEFINITIONS
.
NOTE:
The system will not indicate the DTC unless these conditions are met:
- Set the front wheels in the straight ahead driving position.
- The ignition switch is turned ON.
- The engine is stopped.
- The SCS circuit is shorted to body ground before the ignition switch is turned ON.
- Turn the ignition switch OFF.
- Disconnect the Honda PGM Tester from the DLC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.