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
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 do the following input tests:
- 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.

Cavity	Wire	Test Condition	Test: Desired result	Possible cause if desired result is not obtained
2	BLK	In all ignition switch positions	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground (G702) or an open in the ground wire An open or high resistance in the wire
1	YEL	Ignition switch ON (II)	Measure the voltage to ground: There should be battery voltage.	Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box Faulty under-dash fuse/relay box An open or high resistance in the wire
3	RED	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty center information display An open or high resistance in the wire A short to ground in the wire
4	BLU	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty center information display An open or high resistance in the wire A short to ground in the wire
5	ORN	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty center information display An open or high resistance in the wire A short to ground in the wire
6	GRY	Under all conditions	Measure the voltage to ground: There should be about 4 V.	Faulty center information display An open or high resistance in the wire A short to ground in the wire