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renault master 3 sid321 2023

1
I need help, please!


Renault Master 3, SID321 ECU: when I turn on the ignition, relays start clicking after 10 seconds. There are 3 or 4 relays involved—one is under the glovebox, and the others are in the engine bay.  
There are no error codes. When I start the car, it fires up but stalls after 10 seconds, then starts again... If I give it more gas, the engine doesn't have time to stall. It seems like the ground signal to the supply relay drops out for 1 second; then the relay engages, the engine runs for 5 seconds, the relay cuts out for 1 second, and this cycle repeats continuously.  I suspect the ECU. I bought another identical flash chip for the SID321. I installed it in the car; the relays click on, and then—silence (no more clicking), but it won't start. Flex won't read the EEPROM.How do I read the EEPROM and change the VIN and IMMO data?
OR how to link a block? I don't think this is the only case. help me figure it out....

This is the original file; can anyone tell me where the immo data is located? (Willing to pay.)

Attached Files
.zip

RENAULT_MASTER_SID321.zip

2
2.05 MB
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Messages In This Thread
renault master 3 sid321 2023 - by alex1971 - 06-12-2026, 05:37 PM
RE: renault master 3 sid321 2023 - by alex1971 - 06-13-2026, 01:07 AM
RE: renault master 3 sid321 2023 - by alex1971 - 06-13-2026, 01:59 PM
RE: renault master 3 sid321 2023 - by alex1971 - 06-14-2026, 09:19 PM

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