Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Operation Check

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual / Audio & Visual & Telematics / Telematics / Telematics System / Operation Check

OPERATION CHECK

DCM OPERATION HISTORY

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 connect to the call center. This symptom may occur if cell phone signal strength is very weak.
  • This function is used to display operation history information and the time at which it was stored in the DCM (telematics transceiver).

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Choose "Telematics" from the System Selection Menu, and then click "Utility".

(e) Click "DCM Operation History" on the Utility Selection Menu.

Body Electrical > Telematics > Utility

Tester Display

DCM Operation History

(f) Choose "Items" on the DCM Operation History Menu.

HINT:

  • When "Operation Code" is recorded, DCM Operation History is displayed on the Techstream.
  • The displayed "Function" differs depending on the selected "Items".

(g) Refer to the following chart and check the system operation status displayed on the Techstream. (The following chart is an example of the system operation status.)

System Operation Status Example

Occurrence time (*1)

Operation Code (*2)

Function (*3)

Content (*4)

Roaming (*5)

Voice Call (*6)

Service Area (*7)

Electric Level (*8)

2017/12/31 12:40:50

0101

GNSS (Satellite)

Unreceived GNSS (Satellite) signal

ON

With

Out of Service

Level 0
Tester Display Description
 

Tester Display

Description

Range

*1

Occurrence time

Indicates date of the DCM (Telematics Transceiver) operation.

-

*2

Operation Code

Indicates the Operation Code.

-

*3

Function

Items

function name

-

Common
  • GNSS (Satellite)
  • Collision Detection
  • Network Power Supply Control
  • SMS
  • Telematics PF
  • Failure Due to Conflict
  • Activate Function

Remote Diagnostics
  • Remote Warning
  • Remote DTC / FFD
  • Remote Monitoring
  • Remote Vehicle History
  • Remote DTC / FFD on IP
  • Remote Monitoring on IP

Center Request

Center Request Command

Remote Service
  • Maintenance Assistance
  • Remote Diagnostics Recorder
  • Remote Confirmation
  • Under Repair Rejection
  • Last File

Remote Control
  • Remote Control
  • Remote Hazard
  • Remote Door Lock
  • Remote Power Window
  • Pre Air-Conditioning

Security
  • Alarm Notification
  • Remote Immobilizer
  • Stolen Vehicle Tracking
  • Remote Vehicle Tracking

Operation Monitor

Operation Monitoring

Network
  • Air Data Feed
  • APN Selection
  • TSC Client Authentication
  • Simple HTTP Proxy 1
  • Simple HTTP Proxy 2
  • Simple HTTP Proxy 3
  • Simple HTTP Proxy 4
  • Simple HTTP Proxy 5
  • Simple HTTP Proxy 6
  • Simple HTTP Proxy 7
  • Simple HTTP Proxy 8

Vehicle Information
  • Vehicle Info. CAN
  • Vehicle Info. Ethernet

*4

Content

Indicates the content.

-

*5

Roaming

Indicates whether roaming was used for the communication network.

ON or OFF

*6

Voice Call

Indicates whether there was a voice call.

With or Without

*7

Service Area

Indicates whether the vehicle was in the service area.

Out of Service, Within Range, OFF the Air or Start up (LTE)

*8

Electric Level

Indicates the strength of the cellular signal received by the vehicle.

Level 0, Level 1, Level2, Level3, Level 4, Level 5
    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 ...

    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 engine switch on (IG). (c) ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Panoramic View Monitor System: Side Camera RH Response Malfunction (C2A6C)
    DESCRIPTION During self diagnosis of the parking assist ECU, the parking assist ECU sends display mode ID signals to the side television camera assembly RH. This DTC is stored when the output of the side television camera assembly RH does not match the expected output. DTC No. Detection Item ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Initialization
    INITIALIZATION INITIALIZE MULTIPLEX NETWORK DOOR ECU NOTICE: Initialization of the multiplex network door ECU (back door initial position learning) is necessary if any of the following have been performed with the back door open. The cable is disconnected from the negative (-) battery terminal. ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2026 Copyright www.lexusrx.net
    0.0123