Feature(may vary by option.)

●【Widely Application】The circuit tester Suitable for all 9V to 30V automotive electrical system diagnostics can perform all types of tests such as DC voltage test, AC voltage test, resistance and diodes test etc. It adopts the newly improved functions to test signal frequency, and duty cycle, which can help service technicians track and identify problem circuits as well as rule out bad ones, speeding up the diagnostic process and making it easier to find the true cause of a circuit problem.
●【Continuity Test】AUTOOL BT260 circuit tester can carry out continuity test. Test Procedure: Unfold the cable and connect the red clip to the positive end of the vehicle battery and the black clip to the negative end of the vehicle battery; connect the auxiliary ground wire to one side of the test lead and the probe tip to the other side.f there is continuity in the vehicle circuit, the LED will glow green. If the LED does not glow, there is no continuity.
●【Voltage and Polarity Test】Whencircuit tester is in the DC voltage mode, contact its probe tip to the positive circuit. The LED should glow red and LCD display will show the voltage data. If the tools buzzer is turned on, a high-pitched tone will sound. Contact probe tip with the negative circuit, the LED should glow green and the LCD display will show voltage data. If the tools buzzer is turned on, a low tone will sound. Neither LED will glow if its probe tip is connected to an open circuit.
●【Signal Circuit Test】The AUTOOL BT260 circuit tester can easily test vehicle sensors. For example, a user who suspects a problem with the MAP sensor circuit can follow the procedure related to testing this sensor as follows : Set the BT260 to AC voltage mode, connect the grounded wire clip to the MAP sensor negative terminal, then connect the probe tip to the MAP sensor positive terminal and check the LCD display.
●【Activate Components in the Vehicle】If the green LED light turns off or the circuit breaker trips suddenly, it indicates the tool is overloaded. This may be due to the following reasons: the contact being probed is a direct ground / the component under test is short-circuited / the component is a very high current component (i.e. the starter motor). If the circuit breaker trips, wait for it to cool down (15 seconds) and then press the reset button to reset.
●【Test Headlights and Connections】When the AUTOOL BT260 circuit tester is in DC voltage mode, clip the auxiliary ground wire to the trailer ground, probe the connection at the jack, and apply voltage to the probe tip. The function and orientation of the connectors and trailer lights can be checked in this way.
●【HD Display】Modern and outstanding LCD high-definition color display. The large backlit screen avoids situations of completing the detection in dark areas, helping car technicians, engineers or car DIYers view readings more easily. Moreover, the display screen is clearer, and the displayed data is more direct and clear.

[Circuit Tester260]





Description

Power Circuit Probe KitPower Circuit Probe Kit

Why do customers choose AUTOOL automotive circuit tester?

AUTOOL was founded in 2014 and is headquartered in Shenzhen, China. In 2020, we were nationally recognized as a high-tech company. In 2022, we were awarded the special expertise and innovation qualification. Additionally, in 2023, we achieved ISO 9001 certification for the quality management system. We AUTOOL are a company specializing in the development and production of automotive maintenance and diagnostic products, since its inception, AUTOOL has been dedicated to providing the global automotive market with professional, efficient, and reliable maintenance solutions. Over the years, through the successive release of a series of products and the ongoing improvement of quality and service, AUTOOL has progressively become a familiar and highly regarded presence in the automotive industry.

AUTOOL always selects long-lasting and durable product materials, adheres to the production process of excellence, and upholds the spirit of revolution and innovation, committing to creating products with innovative and superior quality for users. Our product range includes a series of tools and equipment for EV Discharge Testing, Battery Pack Airtightness Tester, GDI Injector Cleaning and Testing, Automotive Refrigerant Filling, Engine De-carbon Cleaning, Leak Detection, and Brake Fluid Exchange, among others. All of our products undergo stringent testing and validation, earning them authoritative certifications from international organizations like CE, FCC, and ROHS. This is how AUTOOL products have solidified our presence in the automotive maintenance and repair sector, earning the trust and support of a diverse range of customers and the market.

Product development, quality control, and Client Support are always our top priorities. Furthermore, we are committed to consistently launching premium new products that incorporate patented technologies and innovative ideas. Today, AUTOOL proudly boasts 146 patented inventions and utility models both in domestic and abroad, accompanied by an impressive array of 168 professional certifications, including CE, FCC, and ROHS. Our unwavering dedication to product quality begins with the selection of materials known for their exceptional durability, ensuring that our products consistently meet the highest standards of performance and reliability. Besides, our production processes are marked by a commitment to precision, as each product undergoes a meticulous series of 35 steps and 12 rigorous quality assessments.

In terms of after-sales service, AUTOOL stands as a stalwart defender of your rights, guaranteeing your confidence in every purchase. Every AUTOOL product is backed by a reliable 3-year Product Quality Promise, a pledge that signifies our commitment to providing you with comprehensive and one-stop after-sales support, ensuring you have the best possible experience with our product.

At AUTOOL, we firmly believe that talent is the cornerstone of innovation. Our team, comprised of individuals with over 15 years of experience in the automotive repair industry, is a testament to this belief. Many of our team members come from industry-leading companies. They possess a deep understanding of both hardware and software development in the automotive sector, and they have a keen insight into user needs.

Presently, AUTOOL is structured into five product divisions and a dedicated Client Support Center. These divisions are primarily responsible for the development and production of products related to automotive diagnosis, testing, maintenance, and tools, offering comprehensive services including product upgrades and iterations. Our Client Support Center is committed to providing after-sales support and technical assistance to our global customers.

As of October 2023, AUTOOL has garnered more than 2 million users and established partnerships with over 180 authorized distributors worldwide. These achievements are a testament to the collaborative effort and unwavering determination of our team members, who adhere to the principles of "No complaints, never give up, mutual support, and mutual success."

AUTOOL remains committed to these core values as we venture further into the automotive repair field. We will continue to enhance our professional expertise and product services, investing in research and development, and expanding our innovative horizons. Together, we strive to deliver exceptional automotive diagnostic and repair solutions to our valued customers.

In the present day, AUTOOL has expanded its presence to 160 countries worldwide. AUTOOL will offer infinite possibilities, differentiated by its branding colors, warm yellow and mysterious black. There is always an option for you, which you will find user-friendly and advantageous. And we will always adhere to the business philosophy of "stand behind our products, be responsible for our users and be reliable for our partners." We AUTOOL would like to extend a warm invitation to you in casting the legendary brand together and begin our story.

Short FinderShort Finder

Why do customers need an automotive circuit tester?

The types and causes of automotive circuit failures are diverse, and the circuit systems are complex. This makes it much more convenient to have an automotive circuit tester to accurately detect and diagnose various wiring faults in the cars wiring, as well as aging wiring and other conditions. Meanwhile, the circuit tester can also detect possible future failures of the automotive circuit systems and provide reliable information for troubleshooting.

Why do customers choose AUTOOL BT260 automotive circuit tester?

Compared to a multimeter, AUTOOL BT260 just needs a simple press on the mode button to display data such as DC/AC voltage, resistance, etc, select the diagnostic mode and touch the probe tip to the circuit. The inspection cable of BT260 is 10 meters in length and can cover the entire vehicle. BT260 also support functions of activating components, signal circuit test, headlight test, multi-language and so on. BT260 is designed for automotive circuit system inspection, and can find circuit system problems more efficiently.

AUTOOL BT260 specification and parameter details

(1) Display: TFT color display (160 x 128 dpi)

(2) Operating temperature: 0 to 60°C

(3) Storage temperature: -40 to 70°C

(4) External power supply: 12 V or 24 V car battery

(5) Dimensions: 126 mm x 46.5 mm x 35 mm L*W*H

(6) NW: 966g

(7) GW: 1104g

Relay Fuse TesterRelay Fuse Tester

Appearance

(1)Probe Tip – Connect the circuit or component to be tested.

(2)Head Lights – Illuminates dark work areas or work areas at night.

(3) Red/Green Polarity Indicator – Identifies positive, negative or connecting a positive circuit. The GREEN indicator lights when the Probe Tip is connectinga negative circuit.

(4)LCD Display – Indicates test results.

(5)Circuit Breaker Reset – Resets the tool when the Circuit Breaker is tripped.

(6) Power Switch – Allows you to conduct a positive or negative battery current to the tip for activating and testing the function of electrical components.

(7)Mode Button – Selects the work mode: AC voltage, DC voltage, resistance, alert sound.

(8)Speaker – When the alert sound is turned on, a beep will be heard.

(9)Auxiliary Ground Lead – Assists test as a ground lead.

(10)Adaptor – Connects to the battery.

Trailer Light Diagnostic ThermometerTrailer Light Diagnostic Thermometer

Quick Self-Test

Before you test a circuit or component, make sure your tool is in right order by doing a quick self-test.

With the tool is connected, perform a quick self-test. The power switch is a momentary rocker switch located on the tools body. Flanking the switch are positive and negative

Markings.

Press the Power Switch forward to activate the tip with a positive voltage. The Red LED should light and the LCD display will read the battery voltage. If the sound alert feature is turned on, a high pitched tone will sound. Let go of the power switch and the LED will

turn off and the high tone will cease.

Press the Power Switch rearward to activate the tip with a negative voltage.The Green LED should light and the LCD display will read the “0.0V‟ (ground). If the tone feature is turned on, a low pitched tone will sound. Let go of the power switch and the LED will turn off and the low tone will cease.

Your tool is working correctly and is now ready for use.

AC DC Digital Voltage Resistance Short FinderAC DC Digital Voltage Resistance Short Finder

Circuit Breaker

IMPORTANT: When powering-up components, you can increase the life of power switch in the tool if you first press the switch, then connect the probe tip to the component. The arcing will take place at the tip instead of the connects of the switch.

The tool is short-circuit protected. Its internal circuit breaker will trip if it becomes over-loaded. The circuit breaker is a valuable test tool as well as a safety measure to protect the tool from overload. When circuit breaker tripped, the LCD will display as below. All other functions of the tool are still active, which means you can still probe a circuit and observe the voltage reading. When the circuit breaker is tripped, the tool will NOT be able to conduct battery current to the tip even when the power switch is pressed. Intentionally tripping the breaker and using the tool to probe can be considered an added precaution against accidental pressing of the power switch.

Power Circuit Probe KitPower Circuit Probe Kit

Work mode and DC voltage

There are four modes to diagnose the electrical system, which can be accessed by

pressing the Mode button and cycling through each one.

While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the DC voltage with a resolution of 0.1 volt.

Power Circuit Probe KitPower Circuit Probe Kit

AC voltage

While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the maximum voltage, the minimum voltage, frequency and duty cycle.

Car Electrical System Test Tool KitCar Electrical System Test Tool Kit

Resistance

While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the resistance between the tip and auxiliary ground lead.

12V 24V Car Electrical System Test Tool12V 24V Car Electrical System Test Tool

Audio On/ Off

While the tool is in this mode, just do a quick press of the mode button to toggle the audio on or off. While quickly pressing (a quick press and release) the mode button, if a short high beep is heard, this means the audio tone is turned on. If a short low beep is heard, the audio is turned off.

This function is invaluable when working in bright areas where LED illumination alone is not sufficient. The audio feature may be disengaged when desired, such as for applications where the tool will be connected to circuits for long periods of time and the audio could become annoying.

Power Probe KitPower Probe Kit

Voltage & Polarity Testing

While the tool is in DC Voltage mode, contact the probe tip to a POSITIVE circuit. The red LED will light and the LCD displays the voltage with a resolution of 0.1V. If the beep is turned on, a high pitched tone will sound.

If contact the probe tip to a NEGATIVE circuit, the green LED will light and the LCD displays the voltage with a resolution of 0.1V. If the beep is turned on, a low pitched tone will sound.

If connect the probe tip to an OPEN circuit, neither of the LED will light.

Power ProbePower Probe

Continuity Testing

While the tool is in Resistance mode, using the probe tip with chassis ground or the auxiliary ground lead, continuity can be tested on wires and components attached or disconnected from the vehicle’s electrical system.

When the probe tip is connecting a good ground, the LCD will indicate “0.0Ω ” and green LED will be on. If the tone feature is turned on, a low pitched tone will sound.

Circuit Probe KitCircuit Probe Kit

Continuity Testing

In other cases, the LCD only indicates the resistance value.

If the resistance value is greater than 200kΩ , the LCD will show “0L”.

There is also another way to prove continuity of connections to ground or battery. Power up the connection using the power switch. If the circuit breaker trips you know that you have a good solid low resistance connection.

NOTE: You can use the probe tip to test the plastic insulation on a wire. This means that you can test the circuit without disconnecting anything.

Power Circuit KitPower Circuit Kit

Signal Circuit Testing

Once you extract a DTC from the vehicle and realize that troubleshooting begins with some kind of sensor circuit, there is a quick test you can perform to verify the code.

Testing your sensor is easy while using the tool.

For example, you suspect there is a problem with your M.A.P. Sensor circuit, then follow the procedure involved with testing this sensor:

Set the tool in AC Voltage mode, using the probe tip with chassis ground or the auxiliary ground lead.Connect vacuum pump to MAP sensor.Contact the probe tip to the MAP sensor positive terminal and observe the LCD

readings which should be a sine wave in normal condition.Apply vacuum.Release vacuum and observe the LCD readings.If the LCD readings are abnormal, there is a problem with the sensor.

Circuit KitCircuit Kit

Activating Components in Your Hand

While the tool is in DC Voltage mode, by using the probe tip in connection with the auxiliary ground lead, components can be activated right in your hand, thereby testing their functions.

Connect the auxiliary ground lead to the negative terminal or ground side of the component being tested. Then contact the probe tip to the positive terminal of the component, the green LED should light, indicating continuity through the component.

While keeping an eye on the green LED, quickly press and release the power switch forward. If the green LED went out and the red LED came on, you may proceed with further activation. Rock the power switch forward and hold it down to provide power to your component.

Power CircuitPower Circuit

Activating Components in Your Hand

With the power switch rocked forward, power will flow from the positive lead on the battery into the probe tip, through the tip into the component’s positive terminal, into the component and out of the component, through the auxiliary ground lead and back into the tool, and back to the vehicle battery’s ground.

If the green LED goes off instantly or if the circuit breaker tripped, the tool has been over-loaded. This could happen for the following reasons:The contact you are probing is a direct ground or negative voltage.The component you are testing is short-circuited.The component is a very high current component (i.e., starter motor).If the circuit breaker is tripped, reset it by waiting for it to cool down (15 seconds) and then pressing the reset button.

AC DC Digital Voltage TesterAC DC Digital Voltage Tester

Testing Trailer Lights and Connections and Activating Components in The Vehicle

While the tool in DC Voltage mode, clip the auxiliary ground lead to the trailer ground, probe the connects at the jack and then apply voltage to the probe tip. This lets you check the function and orientation of the connector and trailer lights.

If the circuit breaker tripped, that contact is likely a ground. Reset the circuit breaker by letting it cool down for 15 seconds and pressing the reset button until it clicks into place.

While the tool in DC Voltage mode, contact the probe tip to the positive terminal of the component, the green LED should light, indicating continuity to ground. While observing the green LED, quickly depress and release the power switch forward. If the green LED went out and the red LED came on, you may proceed with further activation.

Car Electrical Test Tool KitCar Electrical Test Tool Kit

Activating Components in The Vehicle

If the green LED went off at that instant or if the circuit breaker tripped, the tool has been over-loaded. This could happen for the following reasons:The contact you are probing is a direct ground.The component you are testing is short-circuited.The component is a very high current component(i.e., starter motor).If the circuit breaker is tripped, reset it by waiting for it to cool down (15 sec.) and then pressing the reset button.

WARNING : Haphazardly applying voltage to certain circuits can cause damage to a vehicle’s electronic components. Therefore, it is strongly advised to use the vehicle manufacturer’s schematic and diagnosing procedure while testing.

NOTE : When powering up components, you can increase the life of power switch if you first press the switch, then contact the tip to the component. The arcing will take place at the tip instead of the connects of the switch.

Automotive Circuit TesterAutomotive Circuit Tester

Activating Components w/Ground

While the tool in DC Voltage mode, contact the probe tip to the negative terminal of the component, the red LED should light. While observing the red LED, quickly depress and release the power switch rearward. If the red LED went out and the green LED came on, you may proceed with further activation. If the green LED went off at that instant or if the circuit breaker tripped, the tool has been over-loaded. This could happen for the following reasons:

The contact you are probing is a direct positive voltage.The component you are testing is short-circuited.The component is a very high current component(i.e., starter motor).If the circuit breaker is tripped, reset it by waiting for it to cool down (15 sec.) and then pressing the reset button.WARNING : With this function, if you are connecting a protected circuit, a vehicle’s fuse can be blown or tripped if you apply ground to it.

Automotive Power Circuit Probe TesterAutomotive Power Circuit Probe Tester

Product guides and documents