Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Dcm Operation History
DCM OPERATION HISTORY
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 | Range | ||
|---|---|---|---|---|
| *1 | Occurrence time | Indicates date of the DCM (telematics transceiver) operation. | - | |
| *2 | Operation Code | Indicates the Operation Code. | - | |
| *3 | Function | Items | Indicates the function name. | - |
| Common |
| |||
| Emergency Call |
| |||
| *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 safety connect system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT ...
Dcm Activation
DCM ACTIVATION HINT: If the DCM (telematics transceiver) has been replaced, it is necessary to perform the Register Vehicle Information procedure. DCM ACTIVATION (a) Connect the Techstream to the DLC3 ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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