- Sends vehicle information signals to the service center.
- Receives remote operation signals from the service center and sends them to each ECU.
Lexus NX: System Description
Lexus NX Service Manual / Audio & Visual & Telematics / Telematics / Telematics System / System Description
SYSTEM DESCRIPTION
OUTLINE (Lexus Enform Remote)
(a) Lexus Enform Remote enables the user to check the vehicle status and operate the vehicle from a remote location.
(b) Lexus Enform Remote is available by installing a dedicated smartphone application after entering a service contract*.
- *: Lexus Enform Remote cannot be operated until the user has entered a service contract.
(c) Lexus Enform Remote services are performed through data communication between mainly a Lexus Enform Remote capable DCM (telematics transceiver), the service center and a smartphone with the application installed.
HINT:
- Start and operate the Lexus Enform Remote system according to the instructions displayed on the application.
- The contents of Lexus Enform Remote may vary depending on the application.
- For details on available Lexus Enform Remote, go to http://www.lexus.com/enform
FUNCTION OF MAIN COMPONENTS (Lexus Enform Remote)
| Component | Function | |
|---|---|---|
| DCM (Telematics Transceiver) | | |
| Telephone and GPS Antenna (Roof Antenna Assembly) | Telephone Antenna (Main) | Transmits signals from the DCM (telematics transceiver) and receives signals from the service center. (Connect as main) |
| GPS Antenna | Receives signals from GPS satellites and transmits these signals to the DCM (telematics transceiver). | |
| Telephone Antenna (Navigation Antenna Assembly) | Telephone Antenna (Sub) | Receives signals from the service center. (Connect as sub) |
| Certification ECU (Smart key ECU assembly) | Receives the remote engine start signal from the user's smartphone or electrical key transmitter sub-assembly via the DCM (telematics transceiver) and initiates the engine start operation. | |
| Air Conditioning Amplifier Assembly |
| |
| Main Body ECU (Multiplex Network Body ECU) | Locks the door when a remote door lock and unlock operation signal is received. | |
FUNCTION (Lexus Enform Remote)
(a) The main services of Lexus Enform Remote are as follows:
| Category | Remote Service | Function |
|---|---|---|
| Remote Information | Vehicle Status Report | Allows the vehicle status (doors open/closed, etc.) and vehicle information (distance traveled, etc.) to be checked from a remote location via a smartphone, after the power switch has been turned off. By updating the information, the latest vehicle status can be displayed.*1 |
| Remote Notification | Guest Driver Monitor |
|
| Vehicle Status Alerts | Sends a notification to the user if certain operations are not performed within a certain amount of time after the power switch is turned off, such as locking the doors, closing the windows, etc.*2,*4 | |
| Remote Operation | Remote Engine Start and Stop |
|
| Remote Door Lock and Unlock | Allows the doors to be locked/unlocked from a remote location via a smartphone.*6 |
- *1: If the latest vehicle information has not been sent from the vehicle due to the condition of the vehicle (such as if the DCM [telematics transceiver] is outside of the cellular telephone reception area), the most recently received information will be displayed.
- *2: No notifications will be sent if the latest vehicle information has not been sent from the vehicle due to the condition of the vehicle (such as if the DCM [telematics transceiver] is outside of the cellular telephone reception area). Notifications may be delayed if the smartphone has poor reception.
- *3: Only one notification per set condition will be sent during a single trip.
- *4: If the smart access system with push-button start has been canceled, vehicle status alerts notifications will not be sent to the user. If the electrical key transmitter sub-assembly is inside the vehicle or detected as being "inside cabin", vehicle status alerts notifications will not be sent.
- *5: If the vehicle cannot receive the remote engine start signal due to the condition of the vehicle (such as if the DCM [telematics transceiver] is outside of the cellular telephone reception area), the hybrid control system will not be started remotely. Additionally, the remote engine stop operation signal may not be received depending on vehicle conditions.
- *6: If the vehicle cannot receive a door lock/unlock signal due to the condition of the vehicle (such as if the DCM [telematics transceiver] is outside of the cellular telephone reception area), the door lock or unlock operation will not be performed. After a door unlock operation is performed, if the doors are not opened within a certain amount of time, the doors will automatically be locked.
OUTLINE (Lexus Enform Diagnostics)
(a) When a warning is generated due to a vehicle malfunction, the DCM (telematics transceiver) receives warning information from the combination meter assembly and sends a warning notification to the service center. The radio receiver assembly also receives the warning information sent by the combination meter assembly and displays a message in the multi-display assembly according to the malfunction.
FUNCTION OF MAIN COMPONENTS (Lexus Enform Diagnostics)
| Component | Function | |
|---|---|---|
| DCM (Telematics Transceiver) | Receives warning information from the combination meter assembly and sends it to the service center. | |
| Telephone and GPS Antenna (Roof Antenna Assembly) | Telephone Antenna (Main) | Transmits signals from the DCM (telematics transceiver) and receives signals from the service center. (Connect as main) |
| GPS Antenna | Receives signals from GPS satellites and transmits these signals to the DCM (telematics transceiver). | |
| Telephone Antenna (Navigation Antenna Assembly) | Telephone Antenna (Sub) | Receives signals from the service center. (Connect as sub) |
| Combination Meter Assembly | Receives malfunction signals from various ECUs and sends warning information to the DCM (telematics transceiver) and radio receiver assembly. | |
| Radio Receiver Assembly | Receives warning information sent by the combination meter assembly and displays a message in the multi-display assembly according to the malfunction. | |
READ NEXT:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the telematics system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT
Operation Check
OPERATION CHECK HINT:
This function shows the telematics network status when the DCM (telematics transceiver) was operated. Use this when no DTC is present but this telematics system was unable to
Utility
UTILITY CANCEL COMMUNICATION FUNCTION PAUSING HINT: This function is used to cancel communication function pausing mode (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) T
SEE MORE:
Inspection
INSPECTION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. INSPECT REAR NO. 1 SUSPENSION ARM ASSEMBLY LH (a) Inspect the turning torque of the ball joint. (1) Install the installation nut to the ball j
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Sliding Roof System DTC No. Detection Item Link B2341 Sensor (Motor) Failure B2342 Switch Failure B2343 Position Initialization Incomplete B2344 Position Failure
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