Electrical Compass — Honda Odyssey III (2003-2008)

Electrical Compass Honda Odyssey III

Navigation System 4 illustrations ~144 words

Scheme 1: EX-L Touring model (without navigation system)

System Description

The electrical compass unit shows the direction of the vehicle on the multi-information display (MID).

Scheme 2: Electrical Compass Unit Connector Inputs and Outputs

Scheme 3: Circuit Diagram

Scheme 4: Electrical Compass Unit Input Test

Remove the headliner (see «HEADLINER REMOVAL/INSTALLATION»(ref-220969-S29622293522006022200000) ).
Disconnect the 6P connector (A) from the electrical compass unit (B).
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 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.

Cavity	Wire	Test Condition	Test: Desired result	Possible cause if result is not obtained
2	BLK	Under all conditions	Check for voltage to ground: There should be less than 1 V.	Poor ground (G501) An open in the wire
1	YEL	Ignition switch ON (II)	Check for 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	Check for 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	Check for 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	Check for 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	Check for 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

ELECTRICAL COMPASS UNIT INPUT TEST DESCRIPTION