Wednesday, 5 March 2025

Renault Delphi DCM3.4 ECU Mileage Calibration by OBDSTAR X300 Classic G3

This post will show you how to use OBDSTAR X300 Classic G3 to perform the mileage recalibration function on the Renault Delphi DCM3.4 engine ECU.


The tools we need:

X300 Classic G3

High-power DC regulated power supply

Main cable

ECU clone jumper

P004 adapter

Renault Delphi DCM3.4 engine ECU

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Before proceeding, you need to upgrade the software to the latest version.


Open [ODO Meter], and in the top right corner, enter a keyword to select quickly.

Then we click [RENAULT/DACIA] >> [RENAULT/DACIA V41.16] >> [ECM] >> [RENAULT] >> [DELPHI] >> [DCM3.4]

Open the [Guide] section and carefully read the menu description and special note.

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First, open the P004 adapter and check the [ECU Info.]

Check [Mlieage Read]

Tap [Mileage Calibration] and input the mileage as you need.

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Mileage repair successful.

According to the prompt, we need to unplug one IG(ignition) wire and wait one minute before reconnecting it.

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Video guides:

www.obd2shop.co.uk


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