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 Electrical Compass Unit & 6P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the bolt (C), then pull out the electrical compass unit.
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 looks OK, go to step 4.
Reconnect the connector to the electrical compass unit, turn the ignition switch to ON (II), and make these 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.

WIRE CAVITY REFERENCE TABLE

Cavity	Wire	Test Condition	Test: Desired result	Possible cause if result is not obtained
1	YEL	Ignition switch ON (II)	Measure the voltage to body ground: There should be battery voltage.	Blown No. 10 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire
2	BLK	Under all conditions	Measure the voltage to body ground: There should be less than 0.2 V.	Poor ground (G601) An open or high resistance in the wire
3	BRN	Under all conditions	Measure the voltage to body ground: There should be about 4-5 V.	Faulty audio unit An open in the wire A short to ground in the wire
4	BLU	Under all conditions	Measure the voltage to body ground: There should be about 4 V.	Faulty audio unit Loose terminals or an open in the wire A short to ground in the wire
5	ORN	Under all conditions	Measure the voltage to body ground: There should be about 4-5 V.	Faulty audio unit Loose terminals or an open in the wire A short to ground in the wire
6	GRY	Under all conditions	Measure the voltage to body ground: There should be about 4 V.	Faulty audio unit Loose terminals or an open in the wire A short to ground in the wire