Electrical Compass Unit Input Test

Remove the headliner (see HEADLINER REMOVAL/INSTALLATION ).
Disconnect the 6P connector (A) from the electrical compass unit (B).

Fig 1: Identifying 6P Connector And Electrical Compass Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent; loose, or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 4.

Reconnect the connector to the electrical compass unit, turn the ignition switch to ON (II) and perform the following input tests at the connector,

If any test indicates a problem, find and correct the cause, then recheck the system.

If all input tests prove OK, the electrical compass unit must be faulty; replace it.

ELECTRICAL COMPASS UNIT INPUT

Cavity	Wire	Test Condition	Test: Desired result	Possible cause if desired result is not obtained
2	BLK	Under all conditions	Measure the voltage to ground: There should be less than 0.5 V.	Poor ground (G501) An open in the wire
1	YEL	Ignition switch ON (ID	Measure the voltage to ground: There should be battery voltage.	Blown No. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box An open in the wire
3	WHT	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty gauge control module An open in the wire A short to ground in the wire
4	RED/WHT	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty gauge control module An open in the wire A short to ground in the wire
5	BLU/RED	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty gauge control module An open in the wire A short to ground in the wire
6	ORN	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty gauge control module An open in the wire A short to ground in the wire