Inspection Procedure
WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSY - NAVIGATION ECU ASSY)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the connector from the radio receiver assy and navigation ECU assy.
- Check continuity between terminals at each condition, as shown in the chart.
Standard:
TESTER CONNECTION & SPECIFIC CONDITIONTester connection Specified condition VG - VG Continuity VR - VR Continuity SYNC - SYNC Continuity - Check for a short between terminals at each condition, as shown in the chart.
Standard:
TESTER CONNECTION & SPECIFIC CONDITIONTester connection Specified condition VG - Body ground No continuity VR - Body ground No continuity SYNC - Body ground No continuity
- Check continuity between terminals at each condition, as shown in the chart.
- NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
- OK: Go to next step.
- Disconnect the connector from the radio receiver assy and navigation ECU assy.
- REPLACE NAVIGATION ECU ASSY (See
REPLACEMENT
)
- NG: REPLACE RADIO RECEIVER ASSY (See REPLACEMENT )
- OK: SYSTEM OK