This product description is intended for workshops and service centers, specifically presenting a professional Code Maintainer device developed for the maintenance and protection of vehicle onboard electronics, which can also be operated with an external 24V battery. This tool is essential during the diagnosis and servicing of modern vehicles, ensuring continuous power supply to sensitive electronic systems, memories, and settings.
The primary function of the code maintainer device is to provide stable, uninterrupted power supply to the onboard systems even during the disconnection of the vehicle's main battery (e.g., for replacement or lengthy repair procedures). This prevents the loss of radio codes, seat and mirror settings, Engine Control Unit (ECU) settings, immobilizer data, and other critical memories.
The device offers outstanding flexibility as it can connect directly to the vehicle's 12V system, but according to the specified configuration with external 24V battery can also be operated, which is a significant advantage when servicing trucks or special 24V systems.
Main Advantages:
Data Retention: Guarantees the preservation of critical electronic settings and memories during battery disconnection.
Flexible Power Supply: Can connect to 12V systems, but can also be operated with an external 24V source for wide compatibility.
Easy Operation: Intuitive operation that minimizes service time and potential errors.
Professional Quality: Robust design that meets the demands of a demanding workshop environment.
The performance and applicability of the code maintainer device are defined by the following detailed technical parameters:
| Characteristic | Value | Note |
|---|---|---|
| Power Supply (Input) | 12 V DC | Standard vehicle battery connection |
| Auxiliary Power Supply | 24 V DC | External battery connection possibility |
| Output Voltage | 12 V DC | Stabilized output for on-board systems |
| Output Current (Max.) | To be specified (Generally sufficient for memory retention) | The exact maximum current draw can be found in the manual |
| Connection Type | Vehicle battery connectors | Cabling for positive and negative poles |
| Application Area | Passenger cars, commercial vehicles, special vehicles | Versatile due to 12V/24V compatibility |
| Protection | Overload protection | To protect the connected electronics |
| Construction | Robust housing | Designed for workshop use |
This code maintainer is not just a simple battery replacement; it is a dedicated tool for maintaining the electronic integrity of vehicles.
Control Units (ECUs) found in modern cars require continuous power supply to store calibration data, Diagnostic Trouble Codes (DTCs), and adaptive values. If the battery is disconnected, this data can be lost, leading to unnecessary reprogramming or changes in vehicle behavior. The code keeper ensures the system remains „alive” during servicing.
The 24V external battery option sets this model apart from standard 12V code maintainers. It enables the use of the device for:
Trucks and Buses: Where the main system is 24V, but the code keeper is capable of providing the necessary 12V supply for the onboard memory modules (assuming the device has internal voltage regulation to handle the 24V input, or the 24V source is used via an adapter connected to the 12V system, as supported by the description).
Special Vehicles: Construction machinery, agricultural equipment where 24V architecture dominates.
The device is connected to the vehicle's main battery poles before removing the battery. Built-in protection mechanisms ensure that the code keeper does not cause a short circuit or overvoltage during connection. The stable output voltage (12V) guarantees that control units will not experience voltage drops during the operation.
This code keeper is part of a wide portfolio of comprehensive workshop equipment, covering the testing and maintenance of almost every system in vehicles:
Cooling Systems:
Vacuum coolant filling equipment
Cooling system pressure testing kits
CO2 leak detectors for cylinder heads
Refractometers (for measuring battery acid, coolant, windshield washer fluid, AdBlue)
Engines and Drivetrain:
Glow plug pullers and removal tools
Compression testers for petrol and diesel engines
Cylinder Leakage Tester (Petrol & Diesel)
Common Rail system high-pressure test equipment
Electrical Systems (To Which the Code Keeper Connects Directly):
Automotive Test Lamps / Multifunction Testers
Battery and charging system testers
Short Circuit Detectors
Multimeters for Automotive and Commercial Vehicle Workshops
Hydraulics & Brakes:
Digital pressure measuring systems
Brake Fluid Testers
Fék légtelenítő egységek és adapterkészletek
This code keeper device is an essential tool for any professional working with complex vehicle electronics, ensuring workflow continuity and data security, regardless of the state of the vehicle's main power source.
