Sound Signal Circuit between Navigation ECU and Multi-media Interface ECU: Procedure
- CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - MULTI-MEDIA INTERFACE ECU)
- Disconnect the H5 display and navigation module display connector.
- Disconnect the H15 multi-media interface ECU connector.
- Measure the resistance according to the value(s) in the table below.STANDARD RESISTANCE
Tester Connection Condition Specified Condition H5-1 (AGND) - H15-1 (USD1) Always Below 1 Ω H5-3 (VAR+) - H15-2 (URO+) Always Below 1 Ω H5-4 (VAL+) - H15-3 (ULO+) Always Below 1 Ω H5-7 (VA-) - H15-4 (UGD1) Always Below 1 Ω H5-1 (AGND) - Body ground Always 10 kΩ or higher H5-3 (VAR+) - Body ground Always 10 kΩ or higher H5-4 (VAL+) - Body ground Always 10 kΩ or higher H5-7 (VA-) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 2
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [06/2012 - ]