Lexus ES: 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 power 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 | |
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Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) The DCM (telematics transceiver) control the vehicle safety connect system functions. Safety connect system data and Diagnostic Trouble Codes (DTCs) can be read throug
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Safety Connect System DTC No. Detection Item Link B153711 Telephone Sub Antenna Circuit Short to Ground B153713 Telephone Sub Antenna Circuit Open
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Telematics / Trouble
SEE MORE:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the parking support brake system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS
NEXT 3. INSPECT BATTERY VOLT
Display Malfunction (B15A6,B15B0)
DESCRIPTION These DTCs are stored when a malfunction occurs in the multi-display assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15A6 Display Malfunction When any of the following conditions is met:
RAM error
Drawing controller malfunction
Internal hard
