Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Green Indicator Remains Off
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 | .gif) | GO TO STEP 6 |
|
.gif)
| 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 .gif)
|
| 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:
- The engine switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| 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:
- The engine switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| NEXT | | PERFORM DCM ACTIVATION |
Backup Battery Internal Electronic Failure (B15CC49)
DESCRIPTION This DTC is set when the DCM (telematics transceiver) detects one of the following:
The mobilephone battery voltage drops or the mobilephone battery malfunctions.
The mobilephone batt ...
Red Indicator Remains On
DESCRIPTION This means that the DCM (telematics transceiver) has detected a malfunction in the safety connect system and stored a DTC or specific vehicle control history (RoB) Code. PROCEDURE 1. ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Dynamic Torque Control Awd System: Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected: System See Procedure Lane Control System Pre-collision System ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Immobiliser System: Short to GND in Immobiliser System Power Source Circuit (B278A)
DESCRIPTION When there is a short to GND in the power supply for the transponder key amplifier of the engine switch, the certification ECU (smart key ECU assembly) stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B278A Short to GND in Immobiliser Sys ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0201