OBDSTAR P50 Toyota Encrypted Airbag Crash Data Reset Guide

The OBDSTAR P50 supports crash data reset for Toyota encrypted airbag modules. In this example, we will demonstrate how to clear crash records from a Toyota Airbag ECU equipped with the CYT2B93BAC chip using bench mode.

Required Tools

Before starting, prepare the following equipment:

OBDSTAR P50

High-Power DC Power Supply

Main Cable

Jumper Wires

P004 Adapter

C4-06 Adapter Kit

Toyota Airbag ECU (CYT2B93BAC Chip)

Step 1: Enter Crash Reset Function

Power on the OBDSTAR P50 and ensure the software has been updated to the latest version.

Navigate to: AIRBAG RESET → SRS

Use the search function in the upper-right corner to locate the target airbag ECU model.

Step 2: Select Connection Method

Tap Start.

Choose: BENCH → P004 → OK

You can tap:

Guide to view menu descriptions, operation instructions, and adapter information.

Connector Pinout to view the wiring diagram.

Please note that this ECU supports multiple wiring methods. Refer to the corresponding wiring diagram and perform the required operation accordingly.

Tap OK to continue.

Connect all cables according to the wiring diagram provided by the device.

Step 3: Check ECU Status

After completing the wiring connection:

1. Tap ECU Info

2. Tap Read DTC

The device will detect the fault codes stored in the airbag module and indicate that crash data is present.

Next, tap Erase DTC.

At this stage, the operation will fail because the crash record still exists in the ECU.

Step 4: Clear Crash Data

Tap Erase Crash.

Press START to begin the procedure.

The OBDSTAR P50 will process the airbag module and display a message indicating that the crash data has been successfully cleared.

Follow the on-screen instructions:

1. Turn the ignition OFF.

2. Wait approximately 30 seconds.

3. Turn the ignition ON again.

Step 5: Clear and Verify DTCs

After the crash data has been removed:

1. Tap Erase DTC

2. Confirm that the device displays Erase DTC Success

3. Tap Read DTC again

Verify that all DTCs have been successfully cleared and no crash records remain in the airbag ECU.

Video Tutorial

For a complete step-by-step demonstration, please watch the video guide:

Conclusion

Using the OBDSTAR P50, technicians can efficiently perform a crash data reset on Toyota encrypted airbag modules equipped with the CYT2B93BAC chip. By following the correct bench connection method and using the P004 adapter, crash records can be cleared successfully, allowing DTCs to be erased and the airbag ECU to return to normal operating status.

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Toyota Steering Angle Sensor Repair Via OBDSTAR P50

This post will guide you on how to use the OBDSTAR P50 Airbag Reset Tool to do a Toyota steering angle sensor repair by bench.

Tools we need:

OBDSTAR P50

Main Cable

P004 Jumper

P004 Adapter

Toyota Steering Angle 89245-12040

Procedure:

Tap [Airbag Reset]

Select the correct menu based on the mark of the module.

Click [Guide] at the bottom left to check the best connection method.

Click [Back] at the bottom right, then click [Pinout] at the bottom left to check the diagram.

Then we connect the harness according to the wiring diagram.

Turn on the power of P004 and connect to ECU.

After the connection is successful, you can find that there are collision data records in the module data.

Click the [Erase Crash] button, now you need to calibrate the angle back to zero degrees.

At zero degrees, it will show a green.

Once the calibration is complete, we can fix it with a tie to prevent deviation.

When loading, make sure that the steering wheel is centered and key off before installing the angle sensor.

For more details, please refer to the video below:

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OBDSTAR P50 Reset Toyota 89170-78150 Airbag on Bench

This is a quick demonstration of how to reset the Toyota 89170-78150 Airbag with OBDSTAR P50 on the bench. Read the operation below to learn how to do it.

Tool Required

P50 Airbag Reset Tool

Main cable

P004 Adapter + Jumper

Toyota 89170-78150 Airbag ECU

* Please keep P50 in charging and communication throughout the whole process.

Operation

Airbag reset >> Airbag reset >> Latest version >> Toyota 89170-78150(DENSO) R7F7016843[BENCH]

Click "Guide" & "Pinout" to check the operation instructions and wiring diagram.

After a successful connection, turn on the P004 ignition.

Click "Start".

This function is available by connecting the server, please ensure the Internet connection is normal.

This function requires a CANFD adapter, please connect the CANFD adapter before performing the corresponding function.

Click "ECU information" to check if the airbag part number is correct.

Click "Read DTC", here we can find a crash fault code.

Advanced function >> Read EEPROM(R7F7016843) >> Start

Read success.

Save the EEPROM file.

Please disconnect the 12V power supply(or turn off the ignition) and wait for 30, and then reconnect the 12V power supply(or turn on the ignition)

Click "Erase Crash".

Has the "Read EEPROM" function been executed? OK

Choose EEPROM file >> OK

Erase crash in file success.

Changes will be written through the "Write EEPROM" function, continue? OK

Write EEPROM...

Writing data success.

Please disconnect the 12V power supply(or turn off the ignition) and wait for 30s. And then reconnect the 12V power supply(or turn on the ignition).

Click "Erase DTC".

Erase DTC success.

Go back to read DTC again.

There are no crash fault codes.

The airbag reset was done!

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