Inspection Procedure
WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSY - RADIO AND NAVIGATION ASSY)
- Disconnect the radio and navigation assy connector R16 and multi-display controller sub-assy connector R26.
- Measure the resistance according to the value(s) in
MULTI-DISPLAY CONTROLLER SUB-ASSY - RADIO AND NAVIGATION ASSY RESISTANCE .
Standard:
MULTI-DISPLAY CONTROLLER SUB-ASSY - RADIO AND NAVIGATION ASSY RESISTANCETester connection Condition Specified condition SGND - SGN1 Always Below 1 Ω NTSC - NTS1 Always Below 1 Ω SGD1 - SG3 Always Below 1 Ω NTSC - Body ground Always 10 kΩ or higher SGD1 - Body ground Always 10 kΩ or higher SGND - Body ground Always 10 kΩ or higher Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
- OK: GO TO NEXT STEP
- INSPECT MULTI-DISPLAY CONTROLLER SUB-ASSY (OUTPUT SIGNAL)
- Reconnect the multi-display controller sub-assy connector R26.
- Measure the waveform according to WAVEFORM REFERENCE
.
Standard:
WAVEFORM REFERENCETester connection Condition Specified condition NTSC - Body ground DVD display is ON A waveform synchronized with display signals is output Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- NG: REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSY
- OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
HINT:
The waveform pattern may differ from that shown in Fig 4 due to differences in oscilloscope setting. A normal multi-display controller sub-assy operating condition can be determined if any waveform is output.
Oscilloscope wave
Terminal: NTSC-Body ground
Setting: 500 mV/DIV 10 mus/DIV
Condition: DVD display is on.