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 with the HDS.
   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 BRAKE 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/PCM and the brake pedal position switch A wire shorted to ground between the ECM/PCM 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
   Transmission range switch signal | Shift lever in D, M, or D3 position | TRANS RANGE SW should indicate OFF in P, R, and N position and ON in D, M, and D3 position. | Faulty transmission range switch An open in the wire between the PCM and the transmission range switch A wire shorted to ground between the PCM and the transmission range switch Poor ground G101
   Cruise control main switch signal | Cruise control main switch ON and OFF | CRUISE MASTER SW should indicate ON when the cruise control main switch is turned ON and OFF when the cruise control main switch 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 assembly and the cruise control combination switch An open in the wire between the cruise control combination switch and the ground
   Set switch signal | Set/decel switch pressed and released | CRUISE SET SW should indicate ON when the set/decel switch is pressed and OFF when the set/decel switch 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
   Signal to be tested | Test condition | Parameter: Desired result | Possible cause if result is not obtained
   --- | --- | --- | ---
   Resume switch signal | Resume/accel switch pressed and released | CRUISE RESUME SW should indicate ON when the resume/accel switch is pressed and OFF when the resume/accel switch 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 switch signal | Cancel switch pressed and released | CRUISE CANCEL SW should indicate ON when the cancel switch is pressed and OFF when the cancel switch is released. | Faulty cruise control combination switch
   Cruise control indicator signal | Start the engine, turn the cruise control main switch 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