Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier [08/2013 - ]: Procedure
- CHECK HARNESS AND CONNECTOR (MOST COMMUNICATION LINE CIRCUIT)
- Disconnect the H18 multi-media module receiver assembly connector.
- for 9 Speakers
- Disconnect the H23 stereo component amplifier assembly connector.
- for 17 Speakers
- Disconnect the R32 stereo component amplifier assembly connector.
- w/ Rear Seat Entertainment System
- Disconnect the H35 multi-display controller sub-assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
for 9 Speakers
for 17 Speakers (w/o Rear Seat Entertainment System)
for 17 Speakers (w/ Rear Seat Entertainment System)
Tester Connection Condition Specified Condition H18-2 (MI+) - H23-5 (MO+) Always Below 1 Ω H18-3 (MI-) - H23-6 (MO-) Always Below 1 Ω H18-4 (SLDI) - H23-7 (SLDO) Always Below 1 Ω H18-5 (MO+) - H23-2 (MI+) Always Below 1 Ω H18-6 (MO-) - H23-3 (MI-) Always Below 1 Ω H18-7 (SLDO) - H23-4 (SLDI) Always Below 1 Ω H18-2 (MI+) - Body ground Always 10 kΩ or higher H18-3 (MI-) - Body ground Always 10 kΩ or higher H18-4 (SLDI) - Body ground Always 10 kΩ or higher H18-5 (MO+) - Body ground Always 10 kΩ or higher H18-6 (MO-) - Body ground Always 10 kΩ or higher H18-7 (SLDO) - Body ground Always 10 kΩ or higher Tester Connection Condition Specified Condition H18-2 (MI+) - R32-5 (MO+) Always Below 1 Ω H18-3 (MI-) - R32-6 (MO-) Always Below 1 Ω H18-4 (SLDI) - R32-7 (SLDO) Always Below 1 Ω H18-5 (MO+) - H23-2 (MI+) Always Below 1 Ω H18-6 (MO-) - H23-3 (MI-) Always Below 1 Ω H18-7 (SLDO) - H23-4 (SLDI) Always Below 1 Ω H18-2 (MI+) - Body ground Always 10 kΩ or higher H18-3 (MI-) - Body ground Always 10 kΩ or higher H18-4 (SLDI) - Body ground Always 10 kΩ or higher H18-5 (MO+) - Body ground Always 10 kΩ or higher H18-6 (MO-) - Body ground Always 10 kΩ or higher H18-7 (SLDO) - Body ground Always 10 kΩ or higher Tester Connection Condition Specified Condition H18-2 (MI+) - H35-5 (MO+) Always Below 1 Ω H18-3 (MI-) - H35-6 (MO-) Always Below 1 Ω H18-4 (SLDI) - H35-7 (SLDO) Always Below 1 Ω H35-2 (MI+) - R32-5 (MO+) Always Below 1 Ω H35-3 (MI-) - R32-6 (MO-) Always Below 1 Ω H35-4 (SLDI) - R32-7 (SLDO) Always Below 1 Ω H35-8 (WUI) - R32-1 (WUO) Always Below 1 Ω H18-5 (MO+) - H23-2 (MI+) Always Below 1 Ω H18-6 (MO-) - H23-3 (MI-) Always Below 1 Ω H18-7 (SLDO) - H23-4 (SLDI) Always Below 1 Ω H35-2 (MI+) - Body ground Always 10 kΩ or higher H35-3 (MI-) - Body ground Always 10 kΩ or higher H35-4 (SLDI) - Body ground Always 10 kΩ or higher H18-5 (MO+) - Body ground Always 10 kΩ or higher H18-6 (MO-) - Body ground Always 10 kΩ or higher H18-7 (SLDO) - Body ground Always 10 kΩ or higher H35-8 (WUI) - Body ground Always 10 kΩ or higher H18-5 (MO+) - Body ground Always 10 kΩ or higher H18-6 (MO-) - Body ground Always 10 kΩ or higher H18-7 (SLDO) - 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 [08/2013 - ]