Cruise Control Input Test

NOTE: Always make sure that you have the latest HDS software.

Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 under GENERAL TROUBLESHOOTING INFORMATION ).
Turn the ignition switch to ON (II).
Make sure the HDS communicates with the vehicle and the powertrain control module (PCM). If it does not communicate, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
Go to PGM-FI SYSTEM -- INSIGHT , and check for DTCs.
Do the following tests while monitoring parameters in the PGM-FI DATA LIST with the HDS.
If the input tests prove OK, replace the PCM.

NOTE: Intermittent failures are often caused by loose circuit connections. While monitoring cruise control inputs, flex their circuits, and note if any of the test results change.

CRUISE CONTROL INPUT TEST CHART

Signal to be tested	Test condition	Parameter: Desired result	Possible cause if result is not obtained
Idle stop switch signal	Brake pedal pressed, then released	CRUISE BRAKE SW/IDLE STOP SW should indicate OPEN when the brake pedal is pressed and CLOSE when the brake pedal is released.	Faulty idle stop switch An open in the wire between the PCM and the idle stop switch A wire shorted to ground between the PCM and the idle stop switch
Transmission range switch signal (five-position transmission)	Shift lever in D and S	SHIFT/CLUTCH SW should indicate ON in P, R, and N and OFF in D and S.	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
	Transmission range switch signal (six-position transmission)	SHIFT/CLUTCH SW should indicate ON in P, R, N, and L and OFF in D and S.	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
Cruise control main switch signal	Cruise control main button ON and OFF	CRUISE MASTER (MAIN) SW should indicate ON when the cruise control main button is pressed and OFF when the cruise control main button is released.	Faulty cruise control main switch An open in the wire between the gauge control module and the cruise control main switch A wire shorted to ground between the gauge control module and the cruise control main switch
Set switch signal	Set/decel button pressed and released	CRUISE SET SW should indicate ON when the set/decel button is pressed and OFF when the set/decel 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 switch signal	Resume/accel button pressed and released	CRUISE RESUME SW should indicate ON when the resume/accel button is pressed and OFF when the resume/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 switch 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 An open in the wire between the gauge control module and the cruise control combination switch A wire shorted to groung between the gauge control module and the cruise control combination switch
Cruise control indicator signal	Start the engine, press the cruise control main button on, and drive the vehicle above 25 mph (40 km/h), with cruise control set and cancel the cruise control.	CRUISE INDICATOR should indicate ON when the cruise control is set and OFF when the cruise control is canceled.	Faulty gauge control module An open in the wire between the gauge control module and the cruise control combination switch A wire shorted to groung between the gauge control module and the cruise control combination switch