WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH) POWER SOURCE) |
(a) Disconnect the J157 DCM (telematics transceiver) connector.
(b) Disconnect the U12 map light assembly (manual (SOS) switch) connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Switch Condition | Specified Condition |
---|---|---|
U12-5 (RRID) - Body Ground | Engine switch on (IG) | 11 to 14 V |
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J157-3 (SIG-) - U12-9 (GND3) | Always | Below 1 Ω |
J157-3 (SIG-) or U12-9 (GND3) - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. | INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH) |
(a) Remove the map light assembly (manual (SOS) switch). Click here |
|
(b) Apply battery voltage to the connector and check that the roof console box assembly comes on.
OK:
Measurement Condition | Condition | Specified Condition |
---|---|---|
Battery positive (+) → U12-5 (RRID) Battery negative (-) → U12-9 (GND3) | Always | Manual (SOS) switch illumination cones on |
NG | ![]() | REPLACE MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH) |
|
3. | REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver) with a new one.
Click here
NOTICE:
NEXT | ![]() | PERFORM DCM ACTIVATION |
Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual > Quarter Window Glass (w/o Rear No. 2 Seat): Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL QUARTER WINDOW ASSEMBLY (a) Using a brush, coat the installation surfaces on the vehicle body with primer M. NOTICE:
Do not coat ...
Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual > Lighting System (w/ Automatic Headlight Beam Level Control System): Vehicle Control History
VEHICLE CONTROL HISTORY CHECK VEHICLE CONTROL HISTORY HINT:
The vehicle control history data stores the history of the reject function and system protection operations.
The number of occurrences, date and distance are stored in batches for each item.
(a) Connect the Techstream to the DLC3. ( ...