Electrical Compass Unit Input Test
WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the rear shelf (see TRIM REMOVAL/INSTALLATION - REAR SHELF AREA ).
- 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, and perform the following input tests at the connectors.
- 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, and do the compass calibration (see ELECTRICAL COMPASS CALIBRATION
).TEST CONDITION
Cavity Wire Test Condition Test: Desired result Possible cause if result is not obtained 2 BLK Under all conditions Measure the voltage to ground:
There should be less than 0.5 V.- Poor ground (G604)
- An open in the wire
1 YEL/GRN Ignition switch ON (II) Measure the voltage to ground:
There should be battery voltage.- Blown No. 20 (15 A) fuse in the under-dash fuse/relay box
- An open in the wire
3 BRN Ignition switch ON (II) Measure the voltage to ground:
There should be about 4 V.- Faulty display unit
- An open in the wire
- A short to ground in the wire
4 PUR Ignition switch ON (II) Measure the voltage to ground:
There should be about 4 V.- Faulty display unit
- An open in the wire
- A short to ground in the wire
5 LT GRN Ignition switch ON (II) Measure the voltage to ground:
There should be about 4 V.- Faulty display unit
- An open in the wire
- A short to ground in the wire
6 GRY Ignition switch ON (II) Measure the voltage to ground:
There should be about 4 V.- Faulty display unit
- An open in the wire
- A short to ground in the wire