Inspection Procedure 2
Compass is not DisplayedCompass Circuit:
Connector:
CIRCUIT OPERATION
The compass sensor signal flows through the compass-ECU to multi-center display.
TECHNICAL DESCRIPTION (COMMENT)
If the compass is only not displayed on the multi-center display, the cause may be a malfunction of the compass-ECU.
TROUBLESHOOTING HINTS
- Malfunction of the compass-ECU
- Damaged harness wires and connectors
DIAGNOSIS
Required Special Tool:
- MB991223: Harness Set
STEP 1. Check the compass-ECU connector C-17 and compass sensor connector D-01 for damage.
Q: Are the compass-ECU connector C-17 and compass sensor D-01 in good condition?
YES: Go to Step 2.
NO: Repair or replace it. Refer to Harness Connector Inspection
STEP 2. Check the compass sensor connector D-01 and compass-ECU connector C-17 by backprobing.
1. Do not disconnect the compass sensor connector D-01 and corn pass-ECU connector C-17, measure at the harness side.
2. Measure the resistance between compass sensor connector D-01 and compass-ECU connector C-17 by backprobing.
Q: Is the resistance value less than 2 ohm?
YES: Go to Step 3.
NO: Repair or replace it. Refer to Harness Connector Inspection.
STEP 3. Check the compass-ECU connector C-16 and multi-center display connector C-08 for damage.
Q: Are the compass-ECU connector C-16 and multi-center display connector C-08 in good condition?
YES: Go to Step 4.
NO: Repair or replace it. Refer to Harness Connector Inspection.
STEP 4. Check the compass-ECU connector C-16 and multi-center display connector C-08 by backprobing.
1. Do not disconnect the compass-ECU connector C-16 and multi-center display connector C-08, measure at the harness side.
2. Measure the resistance between compass-ECU connector C-16 and multi-center display connector C-08 by backprobing.
Q: Is the resistance value less than 2 ohm?
YES: Replace the compass-ECU.
NO: Repair or replace it. Refer to Harness Connector Inspection.