Inspection Procedure
WARNING: This page is about a different car, the 2004 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (BETWEEN TELEPHONE ECU (MAYDAY ECU) AND TELEPHONE TRANSCEIVER ASSY) (See HOW TO PROCEED WITH TROUBLESHOOTING
)
- NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
- OK: Go to next step.
REPLACE TELEPHONE TRANSCEIVER ASSY (See HOW TO PROCEED WITH TROUBLESHOOTING )
HINT:
If DTC is not cleared even through the transceiver is replaced, replace the telephone ECU (Mayday ECU).