Electrical Compass Unit Input Test
WARNING: This page is about a different car, the 2009 Acura MDX and 2008 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the headliner (see HEADLINER REMOVAL/INSTALLATION ).
- 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 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.CAVITY AND TEST CONDITION CHART
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 (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
- An open 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 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 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 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 in the wire
- A short to ground in the wire