This tutorial walks you through the process of calibrating the mileage on a 2024 Toyota dashboard equipped with an R7F701401 encrypted MCU using the OBDSTAR ODOMaster on a workbench.
Tools & Equipment Required:
OBDSTAR ODOMaster or OBDSTAR X300 Classic G3
OBDSTAR P004 Adapter
High-power DC Regulated Power Supply
Main Cable
ECU Clone Jumper
Toyota Dashboard with R7F701401 Encrypted MCU
Step-by-Step Operation Guide:
1. Update Software
Make sure the software is updated to the latest version
2. Navigation Path
On the main screen, follow this menu path:
ODO Meter > TOYOTA/LEXUS/DAIHATSU > V40.49 > TOYOTA > LEVIN > 2024 – R7F701401 DENSO > BENCH
3. Accessing Guidance
Tap “Guide” for step-by-step instructions.
Tap “ECU Image” to verify ECU compatibility.
Tap “Connector Pinout” for wiring reference.
4. Bench Connection Pinout
ECU TOOL
B-Pin 5, 6 12V (16)
B-Pin 2 GND (4+5)
A-Pin 14 CAN L (14)
A-Pin 31 CAN H (6)
Wiring & Setup
Connect the ODOMaster to the Toyota dashboard using:
P004 Adapter
ECU Clone Jumper
Main Cable
DC Power Supply
Functional Steps
1. Read ECU Information
Initiate ECU communication and verify system recognition.
2. Read EEPROM (R7F701401)
Click “Start” to:
Read ECU Info
Bypass Security
Write Bootloader
Read EEPROM Data
3. Mileage Calibration
Current mileage will be displayed.
Enter the new desired mileage.
Confirm the input to apply the change.
4. Erase DTC
Clear any Diagnostic Trouble Codes (DTCs).
Read ECU info again to verify successful clearing.
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