LS 460 RWD V8-4.6L (1UR-FSE) (2010)
![background image](/lexus/ls_460_rwd/v8-4.6l_(1ur-fse)/Page-2491012.png)
NG -- REPLACE TELEMATICS TRANSCEIVER
OK -- Continue to next step.
7. CHECK MAP LIGHT ASSEMBLY
(a) Reconnect the L59 display and navigation module display connector.
(b) Reconnect the L111 telematics transceiver connector.
(c) Reconnect the X4 map light assembly connector.
(d) Turn the engine switch on (ACC).
(e) Connect an oscilloscope to terminals 21 (MI1+) and 20 (MIC-) of the X4 telephone microphone assembly connector.
(f) Check the waveform of the telephone microphone assembly using the oscilloscope.
Text in Illustration
Result
B -- REPLACE TELEMATICS TRANSCEIVER
A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE See: Navigation System/Testing
and Inspection/Symptom Related Diagnostic Procedures/Navigation System (For HDD)/Problem Symptoms Table
8. REPLACE TELEMATICS TRANSCEIVER
(a) Replace the telephone microphone assembly (See page ).
(b) Check if the same malfunction recurs.
Result
B -- REPLACE MAP LIGHT ASSEMBLY See: Cellular Phone/Cellular Phone Microphone/Service and Repair/Removal