1. Introduction
The AUTOOL BT260 Power Automotive Circuit Probe Tester is a versatile diagnostic tool designed for testing electrical systems in 6V, 12V, and 24V vehicles, boats, motorcycles, heavy-duty equipment, and trucks. This manual provides detailed instructions for the safe and efficient operation of your BT260 tester, helping you to diagnose electrical issues with ease.

Figure 1: AUTOOL BT260 Power Automotive Circuit Probe Tester. The device features a sharp probe tip, a color display, and control buttons, designed for easy handling and clear readings.
2. caractéristiques du produit
The AUTOOL BT260 offers a range of features to enhance automotive electrical diagnostics:
- Convenient and Efficient: Directly detects current polarity, continuity, and component grounding without rewiring or voltage drop, significantly improving work efficiency.
- Portée étendue : A 20-foot cable allows testing across the entire vehicle without constantly repositioning ground connections.
- Affichage clair : Features a TFT color display (160 x 128 dpi) for easy reading of test results.
- Conception portable : Lightweight (0.11 kg / 3.7 oz) and compact for convenient carrying and use.
- Lampe torche LED intégrée : Equipped with an LED flashlight on the head for easy operation in dark conditions.
- Caractéristiques de sécurité : All clips and cables are made from copper for improved stability. Includes quick self-test and short-circuit protection with an automatic safety circuit breaker.
- Prise en charge multilingue : Supports English, German, French, Russian, Spanish, Italian, and Portuguese.

Figure 2: Key features of the AUTOOL BT260, including multi-language support, positive/negative distinction, resistance testing, short-circuit protection, long cable, LED lighting, and copper construction.
3. Consignes de sécurité
Always observe the following safety precautions when using the AUTOOL BT260 to prevent injury or damage to the tool or vehicle:
- Portez une protection oculaire appropriée lorsque vous travaillez sur les systèmes électriques des véhicules.
- Ensure the vehicle's ignition is off before connecting or disconnecting the tester, unless specific test procedures require otherwise.
- Évitez de toucher les pièces chaudes du moteur ou les composants mobiles.
- Do not use the tester if the cables or probe tip are damaged.
- Keep the tester away from water, oil, and grease.
- Ne jamais appliquer voltage to the probe tip when the tester is connected to the vehicle's battery and the power switch is pressed, as this can damage the unit.
- The BT260 is designed for 6V, 12V, and 24V systems. Do not use it on systems outside this voltage gamme.
4. Installation
Before using the AUTOOL BT260, ensure it is properly assembled and connected to a power source.
- Connect the Probe Tip and Power Cord: Insert the probe tip into the main unit and securely connect the power cord to the base of the tester.
- Connect Electricity Supply: Fixez le cl de batterie rougeamp to the positive (+) terminal of the vehicle's battery and the black battery clamp to the negative (-) terminal or a suitable chassis ground. The tester will power on automatically.
Video 1: Demonstrates the initial setup of the AUTOOL BT260, including connecting the probe tip and attaching the battery clamps to the vehicle's power source.

Figure 3: The AUTOOL BT260 tester shown with its complete set of accessories, including the main unit, probe tip, battery clamps, and extension cable.
5. Mode d'emploi
5.1. Vol.tage Test
Pour effectuer un voltage test :
- Ensure the BT260 is powered on and connected to the vehicle's battery.
- Point the probe tip to the desired circuit point (positive or negative).
- The BT260's display will show the voltage of the circuit point. The LED lights on the probe will indicate polarity (red for positive, green for negative).
Video 2: Demonstrates how to perform a voltage test using the AUTOOL BT260, showing the probe tip contacting a circuit and the display indicating voltage.

Figure 4: The BT260's screen displaying a voltage reading while testing a car battery, illustrating its real-time diagnostic capability.
5.2. Test de résistance
To test for resistance or continuity:
- Connect the battery clips to a metal part of the car (ground).
- Point the probe tip to the electric circuit or component you wish to test.
- The BT260 will display the resistance value. A reading of "OL" indicates an open circuit (no continuity), while a numerical value indicates continuity and resistance.
Video 3: Illustrates the process of performing a resistance test with the AUTOOL BT260, showing how to ground the device and probe a circuit for continuity.
5.3. Changing Language Settings
The BT260 supports multiple languages. To change the language:
- Press the function key (yellow button on the body of BT260) 3 times to navigate to the loudspeaker icon.
- Then, press and hold the upward button, and simultaneously press the function key 5 times to enter the "Language" menu.
- Press the function key to select your desired language.
- Press and hold the function key for 3 seconds to save the language setting.
- Press the function key once to return to the main menu.

Figure 5: Step-by-step visual guide for changing the language settings on the AUTOOL BT260 tester, showing button presses and screen prompts.
Video 4: Demonstrates how to access and change the multi-lingual options on the AUTOOL BT260, showing the button sequence and menu navigation.
6. Entretien
Proper maintenance ensures the longevity and accuracy of your AUTOOL BT260 tester:
- Nettoyage: Essuyez l'appareil avec un chiffon doux, damp chiffon. N'utilisez pas de nettoyants abrasifs ou de solvants.
- Stockage: Store the tester in its protective bag in a dry, cool place away from direct sunlight and extreme temperatures.
- Inspection des câbles : Regularly inspect the power cable and probe tip for any signs of wear, cuts, or damage. Replace if necessary.
- Batterie Clamps: Gardez la batterie propreamppropre et exempt de corrosion pour assurer un bon contact électrique.
7. Dépannage
If you encounter issues with your AUTOOL BT260, refer to the following common troubleshooting steps:
| Problème | Cause possible | Solution |
|---|---|---|
| Le testeur ne s'allume pas. | Incorrect battery connection; low vehicle battery voltage; damaged cable. | Assurez-vous que la batterie est ferméeamps are securely connected to the correct terminals. Check vehicle battery voltage. Vérifier l'état des câbles. |
| Volume inexacttaglectures de résistance électrique. | Poor contact with circuit; corroded battery clamps; faulty probe tip. | Ensure firm contact with the circuit. Clean battery clamps. Inspect probe tip for damage. |
| L'écran est noir ou figé. | Software glitch; power interruption. | Disconnect and reconnect the power supply. If the problem persists, contact customer support. |
| Safety circuit breaker trips frequently. | Overload on the circuit being tested; short circuit. | Reduce the load on the circuit or investigate for a short circuit. The BT260's protection feature is working as intended. |
8. Spécifications
| Spécification | Valeur |
|---|---|
| Marque | AUTOOL |
| Modèle | BT260 |
| Source d'énergie | Battery Powered (6V/12V/24V vehicle battery) |
| Couleur | Jaune |
| Poids de l'article | 0.11 kilogramme (environ 3.7 onces) |
| Dimensions du produit (L x l x H) | 9.06 x 7.87 x 3.15 pouces |
| Type de mesure | Voltmeter or Ohmmeter |
| Afficher | TFT Color Display (160 x 128 dpi) |
| Longueur du câble | 20 pieds |
9. Garantie et assistance
AUTOOL products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official AUTOOL webConsultez le site. Conservez votre reçu d'achat comme preuve d'achat pour toute réclamation au titre de la garantie.





