Immo ECU Decoder for Renault, Peugeot, Citroën Compatible with TMS374 Pulse Programmer

Main Description

The Renault Immo ECU Decoder, powered by the TMS374 firmware, is a compact, laptop‑free pulse generator designed to simplify ECU decoding for Renault, Peugeot and Citroën vehicles. Built around a Tiny2313 MCU, this dedicated tool creates precise pulses to wake and reset a wide range of ECUs without relying on external computers. It’s a practical, field‑ready solution for technicians who need reliable pulse sweeping on the go.

Powered directly by the device, it connects to the ECU ground and uses the Data line on the Reset pin of 27C512 or 28F512 memories to drive the pulse sweep. When you power it on, the LED blinks twice. Press the button to start the sweep—the LED stays on while pulses are being generated. At the end of the sweep, the LED turns off and the MCU stops generating signals. This tool is designed to work with a broad spectrum of ECUs across Renault, Peugeot and Citroën lineups, including several Siemens and Sagem units, as well as common engines in Megane, Clio, Laguna, Espace, Xsara, Berlingo, ZX, 106, 206 and more.

In short, this device gives you a targeted, reliable way to decode and re‑state ECUs to a known condition without the need for a laptop, saving time in workshop and field diagnostics while expanding your repair capabilities.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

• 2‑step operation: power the sweeper, then ground and data connections to the ECU, and use the on‑board button to start the frequency sweep—no laptop required.
• Wide compatibility: suitable for a broad set of Renault, Peugeot and Citroën ECUs, including various Megane, Clio, Laguna, Espace, Xsara, Berlingo, ZX and more, plus several Daewoo, Hyundai, Kia and Magneti Marelli units listed in the documentation.
• Field‑ready convenience: compact, lightweight, and easy to store in a toolbox or technician’s kit for on‑site ECU decoding and state changes without setup delays.

Product Specifications

• Brand: YIQINXIN
• Model: TMS374 ECU Decoder
• Purpose: Pulse generator / ECU decoder for Renault, Peugeot, and Citroën ECUs
• MCU: Tiny2313 used to generate pulses (not PC RS232 based)
• Frequency sweep range: approximately 2000 Hz down to 100 Hz
• Memory pins used for data line: Reset pin on 27C512 or 28F512
• Supported vehicles (selected examples): Renault SIEMENS Fenix 3/5; Megane variants (1400cc 8V, 1600cc 8V, 2000cc 8V/16V); Scenic, Laguna, Espace; Sagem SAFIR 1/2; Clio (1200–2000cc, 8V/16V); Peugeot 306 (1400–1800cc, 8V/16V); Citroën Berlingo, Xsara, ZX; Peugeot/Citroën 106–206/306/406 family; Daewoo, Hyundai, Kia Sagem/Magneti Marelli combinations listed in documentation
• Origin: Mainland China
• Item weight: 0.05
• Power / operation: No laptop needed; uses device power; LED indicators reflect status
• Warranty/Certification note: CE certified; two year warranty with EU distribution

Package includes:

• 1 x TMS374 ECU Decoder

Warnings / Reminders

Note: For professional use in accordance with vehicle manufacturer guidelines. No laptop is required to operate this device; follow the connection steps precisely: power the sweeper, connect the GND line to ECU ground, and connect the Data line to the Reset pin on the specified memory (27C512 or 28F512).

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Since 2002, intercyprus.com has built a reputation for dependable, quality automotive electronics—reliability you can rely on.