GODIAG GT103 Pirt Electric Circuit Instruction Manual

MUL TIFUNCTION ELECTRIC CIRCUIT
Manual

GT103
PIRT ELECTRIC CIRCUIT

Statement

Please carefully read the following statement:
Goding GT103 Mini Pirt Electric Circuit Tester Instruction helps you quickly understand how to use Godiag GT103 Mini Pirt Electric Circuit Tester. Please do not use it for illegal purposes, please abide by national laws. The Instructions of Godiag GT103 Mini Pirt Electric Circuit Tester is written by GODIAG company. No company or individual is allowed to copy this manual in any form (electronic official seal, mechanical, photocopy, recording, picture or any other forms). It can not be used for commercial purposes either.

Trademark Copyright

The brand ‘GODIAG’ has been registered in China and several overseas countries.
Disclaimer and Limitation of Liability
All the information, specifications, and illustrations in this manual are the latest information before the deadline of publication. The brand GODIAG reserves the right to change it without notice. The content in the manual has been carefully reviewed, but its accuracy and integrity are not guaranteed (including product specifications, functions, and images ).
Note: before operating or maintaining the equipment, please read this manual carefully, especially the safety precautions.

Technical Service Support

www.godiag.com
+86 18813687743
Sales@godiag.com

Safety Precautions

For the safety of yourself and others, and to avoid any damage to the equipment and vehicles, please read the safety precautions carefully. There are various procedures, tools, components, and technologies used when maintaining vehicles. Their operation methods of them are different. Moreover, there are also lots of precautions for the vehicles when vehicle maintenance is carried out. Therefore, this manual cannot predict every situation and provide safety recommendations for it accordingly.

It is the responsibility of automobile maintenance technicians to fully understand the test system and reasonably use appropriate maintenance methods and test procedures. When testing, you must use appropriate operating methods to avoid threats to the personal safety of yourself and other people in the work area and to avoid damage to the equipment being used or the vehicle being tested. Before using the equipment, please refer to and follow the safety precautions and applicable test procedures provided by the vehicle or equipment manufacturer. When using the equipment please follow the instructions provided in this manual. Please carefully read, fully understand, and strictly follow all safety information and instructions provided in the manual.

The basic safety precautions that should be followed when working on the ve
◆ Please make sure that you are working in a safe environment. Automobile exhaust is harmful to human health, so please make sure that your workplace has adequate ventilation.
◆ Wear goggles that comply with ANSI standards.
◆ Adjust the gear to P (automatic) or N (manual), and make sure that the parking brake is activated (pull the handbrake).
◆ Keep the clothing, hair, hands, tools, and equipment away from running engine parts or hot engine parts.
◆ Place bricks in front of all wheels to prevent accidental movement of the vehicle.
◆ During the testing and work, someone must watch over the vehicle.
◆ Be extremely careful when working near the ignition coil, distributor cap, ignition wire, and spark plug, because these components can generate dangerous voltages.
◆ Make sure there are fire extinguishers to put out fires caused by gasoline/chemical/electrical materials nearby.
◆ Do not plug or unplug the device when the ignition is turned on or the engine is working.
◆ Keep the equipment dry and clean, and avoid contact with oil, water, or grease. Please use a clean cloth to wipe the equipment.
◆ Do not operate the diagnostic equipment while driving the vehicle to avoid car accidents caused by distractions.
◆ When the vehicles are serviced, please refer to the instructions in the maintenance manual, and operate in strict accordance with the requirements of the precautions. Otherwise, it may cause personal injury or damage to the diagnostic equipment.
◆ Do not place the diagnostic equipment on the distributor of the vehicle. Strong electromagnetic interference may cause damage to the equipment.

Product Overview

Goding GT103 Mini Part Electric Circuit Tester is a specialized circuit maintenance testing tool developed for car maintenance workers and engineers. It can be used for the test of open circuits, short circuits of the power supply line, and the output of the positive and negative anodes. It is a high- level tool for judging positive and negative anodes. Its function also covers fuse testing, relay testing, real and virtual electricity testing, and sensor testing. At the same time, the product can also be used for motor testing, lamp testing, and speed signal testing. What’s more, Goding GT103 Mini Part Electric Circuit Tester can be used for fuel injector testing and has the function of cleaning the fuel injector.
Goding GT103 Mini Part Electric Circuit Tester with a reverse connection protection circuit is used for DC 6-30V cars, motorcycles, trucks, buses, engineering vehicles, ships, tractors, special mine vehicles, and other vehicles using DC circuits.

Product Structure Introduction

1. Probe
2. The green LED light is the indicator light for the fuel injector and relay function output
3. LED positive and negative indicators (Foggy bi-color LED light. Green light is 0v/GND negative circuit indicator, red light is the circuit indicator of voltage higher than 1v)
4. Port of the Buzzer
5. Output switch（press the first position for the battery positive output, Press the second position for battery negative output ）
6. fuel injection nozzle relay function switch
7. Auxiliary ground wire
8. The test connection port of the fuel injector, relay
9. Clip to connect the positive electrode of the battery
10. Clip to connect the negative electrode of the battery

Product Parameters

Power Supply

This product is powered by a vehicle battery. Please connect the black battery clip to the negative terminal of the vehicle battery, and the red battery clip to the positive terminal of the vehicle battery. When the tool is connected to the battery (power supply), the lighting LED will be on too.

Self-Test Before Use

Before testing the circuit or auto parts, please make sure that the tool is good and passes the self-test.
Self-Test Steps：

1. Connect the device to the car battery. (as shown in figure 1)
2. Connect the probe pin to the positive electrode of the battery, and the foggy bi-color LED light should be red. The buzzer makes a rapid sound. (as shown in figure 2)
3. Connect the probe pin to the negative terminal of the battery, and the foggy bi-color LED light should be green. The buzzer makes a low-frequency sound. (as shown in figure 3)
4. Activate the output function switch. When you press the power switch forward, the probe will output positive battery power. The foggy bi-color LED light should be red. The buzzer makes a rapid sound. Release the switch, the red light should be off and the sound disappears. The probe’s positive output vanishes. (as shown in figure 4)
5. Activate the output function switch, when you press the power switch backward, the probe will output negative battery power. The foggy bi-color LED light should be green. The buzzer makes a low-frequency sound. Release the switch, and the green light should be off and the sound disappears. The probe’s negative output vanishes.
   After the above self-test, if your tool can work normally, then you can use it without worry.

Product Function and Application Method

The working voltage of this product is DC 6V-30V.

1. Power Circuit Judgement
   a. The complete circuit judgment–Godiag GT103 Mini Part Electric Circuit The tester detects from the starting point to the ending point of the same power line.
   If the electrical characteristics remain the same, it means that the circuit path is complete and normal.
   b. The open circuit judgment –Godiag GT103 Mini Part Electric Circuit Tester detects from the starting point to the ending point of the same power line. If the electrical characteristics appear at the starting point but disappear at the end of the power supply, it means that the circuit path is open.
   c. The short circuit judgment–Godiag GT103 Mini Part Electric Circuit Tester detects from the starting point to the ending point of the same power line. If the electrical characteristics appear at the starting point but different electrical characteristics appear at the ending point of the power supply, it means that this power line is short with other lines.
   

2. Individual Accessory Test
   It can be used to test illumination lamps, turn signal lights, door lock actuators, window regulator lift motor, car horn, switch, solenoid valve, relay, oil pump, fuel injector, ABS pump motor, engine control unit (ECU), etc.

Operating Steps：

1. Connect the black battery clip of the Godiag GT103 Mini Part Electric Circuit Tester to the negative electrode of the battery and the red battery clip to the positive electrode of the battery. If Goding GT103 Mini Part Electric Circuit Tester’s lighting LED lights, it means that the power supply of the device is normal.
2. Connect the device’s auxiliary ground wire clip to the negative pole of the component to be tested.
3. Connect the probe to the positive pole of the module. If the module has low resistance, the foggy bi-color LED light of the device should be green. The buzzer emits a low-frequency sound. (Indicates that the module is connected properly)
4. Press the ship-shaped function switch forward, the positive charge of the vehicle battery is input to the probe via the device, and the foggy bi-color LED light should be red. The buzzer makes a rapid sound. If the module works normally, it means that the module is in normal status. (If it does not work properly, it means that the module is  damaged.)

3.）Socket Module Components Test
If the maintenance technicians or engineers have already known the principle of control and the module components are connected to the vehicle normally, they can directly input positive or negative electricity to the socket via the probe, and they can judge the cause of failure according to the testing result.

4. Test of Modules Installed in the Vehicles
This product can test modules installed in the vehicles. Engineers can judge the performance of components based on their own experience and technology. Let the probe output positive or negative electricity to achieve the purpose of testing a single component.
Use this product to perform activation tests on the modules or components installed in the vehicle. Find the positive circuit and connect the probe to the positive electrode of the circuit. If the foggy bi-color LED light should be green, the buzzer emits a low-frequency sound, it means that the GND connection of the module or component is normal. Press the Godiag GT103 Mini Part Electric Circuit Tester power output function switch forward, positive electricity will be output to the probe circuit. If the vehicle module or component can work normally, it means that there is a problem with the vehicle’s positive power supply circuit for this module.
Note: If the pressing of the positive output causes a trip and open circuit, it means that the tool has been overloaded. The following reasons may explain it: The probe is directly in contact with GND or the component you are testing is short-circuited. If the positive output of the product is delivered to a high-current module or component, it will cause the product to trip. At this time, reconnect the device and it will function normally.

Negative circuit module and component circuit activation test. Find the GND connection of the vehicle module according to the circuit schematic diagram. After the probe touches GND, the foggy bi-color LED light should be red. The buzzer makes a rapid sound,, and the function switch is pressed backward to output the negative circuit to the probe. If the vehicle module or component can work normally, it means that there is a problem with the GND wiring of the module.

WARNING : Haphazardly applying a 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.

5.）The Module Test Demonstration
Fuse test, vehicle LAN circuit test, real electricity virtual electricity test,
crankshaft sensing, camshaft sensing.
6）Fuel Injector Testing and Cleaning Fuel Injector Testing：

1. Connect the black battery clip of the Godiag GT103 Mini Part Electric Circuit Tester to the negative electrode of the battery and the red battery clip to the positive electrode of the battery. If the lighting LED of Godiag GT103 Mini Part Electric Circuit Tester is on, the power supply of the equipment is normal.
2. Connect the fuel injector test line to the fuel injector to be tested.
3. Press the fuel injector relay function button and the buzzer will beep once. The function output green light flashes.
4. The control signal is sent to the plug of the fuel injector to drive the fuel injector to open and close.
   Note: If the pressing of the positive output causes a trip and open circuit, it means that the tool has been overloaded. The following reasons may explain it: The probe is directly in contact with GND or the component you are testing is short-circuited.
   If the positive output of the product is delivered to a high-current module or component, it will cause the product to trip. At this time, reconnect the device and it will function normally.

Manual Cleaning of Fuel Injectors

1. Prepare a fuel injector cleaner pressurized can or a carburetor cleaner pressurized can(nozzle diameter of the pressurized cans: 4mm). Connect the fuel injector and manually clean the connector.
2. Connect the black battery clip of the Godiag GT103 Mini Part Electric Circuit Tester to the negative electrode of the battery and the red battery clip to the positive electrode of the battery. If Goding GT103 Mini Part Electric Circuit Tester’s illumination LED lights, it means that the power supply of the device is normal.
3. Connect the injector test line to the injector that needs to be cleaned.
4. Press the fuel injector relay function button and the buzzer will beep once. The function output green light flashes.
5. Hold the manual cleaning tool tightly with your hand, and firmly fix the fuel injector with your fingers to prevent the pressure of the cleaner can from washing away the fuel injector.
6. Clean the fuel injector under the Godiag GT103 Mini Part Electric Circuit Tester program.
   (Note: Pay attention to the hazards of liquid to the human body during manual cleaning, and take protective measures. Do not operate in dangerous places with open flames because the pressurized cans are extremely flammable. Choose an open place to facilitate the discharge of cleaning liquid.)

7.）Relay Test
Three Kinds of Relay Connection

1. Conventional Relays
   Relay port 86, Positive power supply (red), 85 power supply negative (black), 30 COM (yellow), 87 Normally Open (green),87a Normally Closed (blue)

2. Special Relays
   Relay port 1. Negative power supply (black), 2. Positive power supply (red),3. COM (yellow), 4. Normally Closed (blue), 5. Normally Open (green)

3. Other Relays(port definition is not specific) Users define the connection according to the port of the relay.

Relay Test Procedures

1. Prepare relay test leads and connection adapters.
2. According to the characteristics of the relay, customers can distinguish, the coil end of the relay, the common end, the normally open end, and the normally closed end. Connect the relay.
3. Connect the black battery clip of the Godiag GT103 Mini Part Electric Circuit Tester to the negative electrode of the battery and the red battery clip to the positive electrode of the battery. If the Godiag GT103 Mini Part Electric Circuit Tester displays normally, and the illumination LED lights it means that the power supply of the equipment is normal.
4. Press the function button of the fuel injector relay and the buzzer will beep once. Function output green light flashes.
5. The relay test signal is transmitted to the relay test line and the relay adapter to drive the relay to work.
   Result Judgment:
   A.For relays with normally open and normally closed functions, the red power light on the relay adapter flashes; for the normally open, green light flashes; for the normally closed, the blue light flashes.
   B.For relays with only the normally open function, the red power light on the relay adapter flashes; for the normally open, the green light flashes; for the normally closed, the blue light goes out.

Product Size

Package Includes:

Warranty Service

This product provides a one-year warranty service. This warranty does not apply to damages caused by improper use, accident, flood, lightning, or if the product was altered or repaired by anyone other than the Manufacturer’s Service Center. If the device needs to be repaired, please fill in the service information below:

Contact name:
Return address:
Phone Number:
Concise and Comprehensive Problem Description:
Proof of Purchase
Send the device to the local dealer.

https://h5.shengcai.net/wwei/url?url=H666G_0Kx6G

ABOUT US

SHENZHEN SINO TECHNOLOGY CO., LTD

www.godiag.com
Sales@GoDiag.com
+86 18813687743
Room 301, Building 1, Bada Industrial Park,
No. 9 Tangkeng Road, Liuyue Community,
Henggang Street, Longgang District, Shenzhen

References

• GoDiag - China Professional OBD Manufacturer

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