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Siemens EMS3150 - TC1767
Errors
A quick overview of common errors and their solutions for the Siemens EMS3150 ECU.
7F-10-22
This error occurs when required external conditions, such as vehicle state or voltage, are not met for programming.
View Solution →No data to read/ ignition turn off
This issue happens when the vehicle's ignition turns off automatically, interrupting the data reading process.
View Solution →Concerns vehicles from
7F-10-22
Method: OBD
Issue: The tool reports an error because the control unit has rejected the request to start programming due to unmet prerequisites.
- Before starting the operation, carefully check the bFlash protocol's HELP section for this ECU.
- Ensure all listed conditions (e.g., stable battery voltage, ignition status) are met precisely.
To understand more
ECUs like the Siemens EMS3150 have built-in safety protocols. To prevent corruption during memory writing, they require a specific set of conditions to be true. This error is a protective measure, indicating that the ECU is not ready to safely enter programming mode.
No data to read/ ignition turn off
Method: OBD
Issue: The reading process starts but fails midway because the vehicle's ignition system automatically shuts down to save power.
- To maintain the connection, press the vehicle's 'Start' button periodically (approximately every 60 seconds).
- Important: Do not press the clutch or brake pedal while pressing the start button, as this will start the engine.
To understand more
Many modern Dacia and Renault vehicles feature an 'economy mode' that deactivates the ignition and other electronics after a few minutes of inactivity to conserve battery. This interrupts long OBD communication sessions. Periodically pressing the start button resets this timer and keeps the vehicle's network awake without starting the engine.