KZYEE KM05 Power Circuit Probe Tester User Manual

The KZYEE KM05 package typically includes the following components:

• 1x KZYEE KM05 Super Probe Circuit Tester
• 1x Extension Cable (13FT)
• 1x Battery Clip Cable
• 1x Probe Tip
• 1x User Manual

This image illustrates the KZYEE KM05 Power Circuit Probe Tester, showing its main unit, the 13-foot extension cable, and the battery clip cables ready for connection to a vehicle's electrical system.

The KM05 features four distinct modes, selectable via the mode button, for precise diagnostics:

• DC Voltage Mode: Used to measure direct current voltage, identify power lines, and detect shorts.
• AC Voltage Mode: Used to measure alternating current voltage, useful for checking sensors and signal waves.
• Resistance Mode: Measures electrical resistance, ideal for testing wires, grounds, and fuses.
• Diode Mode: Verifies the direction and integrity of diodes within a circuit.

The KM05 allows for safe activation of components by sending power or ground through the probe tip. This function is useful for testing relays, lights, fuel injectors, fans, and blower motors directly on the vehicle without disassembly. Built-in circuit protection safeguards vehicle ECUs.

This image illustrates various vehicle components such as lights, dashboard, door mechanisms, wipers, AC accessories, and radiator fans, all of which can be activated and tested using the KM05 Power Circuit Probe Tester.

This image shows the KZYEE KM05 Power Circuit Probe Tester being used to activate a component (a car bulb) while held in hand, demonstrating its utility for testing components both on and off the vehicle.

In Resistance mode, use the probe tip with a ground wire or auxiliary ground wire to test the continuity of wires and components. If the display shows "0.0Ω", the ground is good, the green LED will light up, and a beep will sound. The LCD will display "OL" if resistance is greater than 100KΩ. You can also verify continuity to ground or the battery using the power switch. If the circuit breaker trips, it indicates a secure connection with low resistance. The probe tip can pierce plastic insulation for testing without breaking connections.

For signal circuit testing, such as a MAP sensor, set the tool to AC Voltage mode. Connect the probe tip to chassis ground or the auxiliary ground lead. Connect a vacuum pump to the MAP sensor. Contact the probe tip to the MAP sensor positive terminal and observe the LCD readings, which should show a sine wave in normal conditions. Apply vacuum and check for changes. An abnormal LCD reading indicates a sensor problem.

The KM05 features Red/Green LEDs to instantly indicate wire polarity. A red LED signifies a positive connection (power), a green LED indicates a negative connection (ground), and no light suggests an open circuit or break. This feature aids in quickly identifying shorts, bad grounds, or reverse connections without needing a separate multimeter.

To locate short circuits, which often manifest as a blown fuse or tripped electrical protection device:

1. Remove the blown fuse from the fuse box.
2. Use the probe tip to activate each contact of the fuse and power it up.
3. The contact that causes the circuit breaker to trip indicates the short circuit.
4. Note the wire's identification code or color, and trace the wire along the harness as far as possible. The tip probe can be inserted directly into the insulation.

To test trailer lights and connections:

1. In DC voltage mode, clamp the auxiliary ground wire to the trailer ground line.
2. Detect the contacts on the socket, then apply voltage to the tip of the probe.
3. Check the trailer lights or other connections.

Note: If the circuit breaker trips, the contact may be grounded. Allow the breaker to cool for 15 seconds before resetting.

Probe the suspected ground wire or contact with the probe tip. If the green LED goes out, the red LED lights up, and the tool emits a beep, then this is not a true ground. If the circuit breaker trips, it is likely that the circuit has a good ground. However, be aware that large-current components, such as starter motors, can also cause the breaker to trip.

This image illustrates the wide range of applications for the KZYEE KM05, including testing turn signals, fuses, general circuits, switches, tail lights, and car bulbs.

This image showcases the broad applicability of the KZYEE KM05, demonstrating its use across various vehicle types such as cars, SUVs, trucks, ships, motorcycles, and buses.

This image reinforces that the KZYEE KM05 is not limited to cars but can be used on a diverse range of vehicles, including SUVs, ships, buses, motorcycles, heavy-duty trucks, and pickups.

The KM05 features an 8A auto-reset circuit breaker to protect both the vehicle and the tool from overloads. If the current exceeds the limit, the tool will disconnect power and emit an audible alarm. Allow the breaker to cool for approximately 15 seconds before resuming operation. This eliminates the need for fuse replacement.