1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC). Go to B-CAN System Diagnosis Test Mode A and check for DTCs. Go to PGM-FI and check for DTCs. Turn the ignition switch ON (II). Do the following tests while monitoring parameters in the PGM-FI DATA LIST.
   Signal to be tested | Test condition | Parameter: Desired result | Possible cause if result is not obtained
   --- | --- | --- | ---
   Brake switch signal | Brake pedal pressed, then released | CRUISE BRK SW should indicate OFF when the brake pedal is pressed and ON when the brake pedal is released. | Faulty brake pedal position switch Blown No. 18 (15 A) fuse in the under-dash fuse/relay box An open in the wire between the ECM and the brake pedal position switch A wire shorted to ground between the ECM and the brake pedal position switch
   Clutch pedal position switch signal | Clutch pedal pressed, then released | SHIFT/CLUTCH SW should indicate OFF when the clutch pedal is pressed and ON when the clutch pedal is released. | Faulty clutch pedal position switch An open in the wire between the ECM and the clutch pedal position switch A wire shorted to ground between the ECM and the clutch pedal position switch Poor ground G501
   Cruise control master button signal | Cruise control master button ON and OFF | CRUISE MAIN SW should indicated ON when the cruise control master button is turned ON and OFF when the cruise control master button is turned OFF. | Faulty cruise control combination switch An open in the wire between the gauge control module and the cruise control combination switch A wire shorted to ground between the gauge control module and the cruise control combination switch An open in the wire between the cruise control combination switch and the ground
   Set button signal | DECEL/SET button pressed and released | CRUISE SET SW should indicate ON when the DECEL/SET button is pressed and OFF when the DECEL/SET button is released. | Faulty cruise control combination switch An open in the wire between the gauge control module and the cruise control combination switch A wire shorted to ground between the gauge control module and the cruise control combination switch
   Resume button signal | RES/ACCEL button pressed and released | CRUISE RESUME SW should indicate ON when the RES/ACCEL button is pressed and OFF when the RES/ACCEL button is released. | Faulty cruise control combination switch An open in the wire between the gauge control module and the cruise control combination switch A wire shorted to ground between the gauge control module and the cruise control combination switch
   Cancel button signal | CANCEL button pressed and released | CRUISE CANCEL SW should indicate ON when the CANCEL button is pressed and OFF when the CANCEL button is released. | Faulty cruise control combination switch
   Cruise control indicator signal | Start the engine, turn the cruise control master button on and drive the vehicle to speeds over 40 km/h (25 mph) with the cruise control set and cancel the cruise control | CRUISE LIGHT should indicate ON when the cruise control is set and OFF when the cruise control is canceled. | Faulty gauge control module A burnt CRUISE CONTROL indicator