LS 460 RWD V8-4.6L (1UR-FSE) (2010)
Using this circuit, the telematics transceiver sends power to the map light assembly (telephone microphone assembly), and the map light assembly
(telephone microphone assembly) sends microphone signals to the display and navigation module display. The display and navigation module display
and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY See: Navigation System/Service and Repair/Removal and
Replacement/Display and Navigation Assembly/Removal
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - MAP LIGHT ASSEMBLY)
(a) Disconnect the L59 display and navigation module display connector.
(b) Disconnect the X4 map light assembly connector.