DESCRIPTION
After engine switch on (IG), the DCM (telematics transceiver) will enter into self check mode. The manual (SOS) switch red indicator will illuminate for 2 seconds and turn off followed by the manual (SOS) switch green indicator illuminating and remaining on under normal operation. If neither the red nor green indicators remain on, verification of the subscription should be performed.
PROCEDURE
1. | CONFIRM GREEN INDICATOR COMES ON |
(a) After the engine switch is turned on (IG) and the manual (SOS) switch red indicator has come on for 2 seconds, confirm that the manual (SOS) switch green indicator comes on for 2 seconds.
OK:
Green indicator comes on.
NG | ![]() | GO TO STEP 6 |
|
2. | CONFIRM SUBSCRIPTION MODE |
(a) Confirm the indicator status 5 seconds after the engine switch is turned on (IG).
Result | Proceed to |
---|---|
Green indicator remains on | A |
Green indicator remains off | B |
A | ![]() | USE SIMULATION METHOD TO CHECK |
|
3. | INPUT VIN WITH TECHSTREAM |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and wait for 10 seconds.
(d) Turn the Techstream on.
(e) Choose "Telematics" from the System Selection Menu, and then click "Utility".
(f) Click "VIN Synchronization" on the Utility Selection Menu.
Click here
|
4. | CONFIRM SUBSCRIPTION MODE |
(a) Confirm the indicator status at 5 seconds after the engine switch is turned on (IG).
Result | Proceed to |
---|---|
Green indicator remains on | A |
Green indicator remains off | B |
A | ![]() | END |
|
5. | REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver).
Click here
NOTICE:
NEXT | ![]() | PERFORM DCM ACTIVATION |
6. | CHECK DTC |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and wait for 10 seconds or more.
(d) Turn the Techstream on.
(e) Clear the DTCs.
Body Electrical > Telematics > Clear DTCs(f) Check for DTCs and check that no DTCs are output.
Body Electrical > Telematics > Trouble CodesOK:
No DTCs are output.
NG | ![]() | GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
7. | REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver).
Click here
NOTICE:
NEXT | ![]() | PERFORM DCM ACTIVATION |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Airbag System: Curtain Shield Airbag Sensor (LH) (B1635,B1637)
DESCRIPTION The side collision sensor LH circuit (bus 1) consists of the airbag sensor assembly, door side airbag sensor LH and rear airbag sensor LH. The door side airbag sensor LH and rear airbag sensor LH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: Road Test
ROAD TEST PROBLEM SYMPTOM CONFIRMATION (a) Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transaxle does not shift up, shift down, or the shift point is too high or too low, conduct the following road test referring to the automatic sh ...