1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC).

1. Go to B-CAN System Diagnosis Test Mode A, and check for DTCs.

1. Go to PGM-FI, and check for DTCs.

1. Turn the ignition switch ON (II).

1. 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