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circuit and adapters
Circuit repair kit
OBDEMOTO 3003
  • DESCRIPTION
OBDEMOTO MST3003 Circuit repair kit manual
This product is an electrician combination kit, designed to provide circuit maintenance personnel with a more comprehensive use of tools to facilitate work and improve work efficiency.
  1. use guide of the stringer:
 Use the hook of the slinger to hook the corresponding wire, rotate the handle to pierce the wire, and connect the multimeter with the cable to complete the measurement of the wire.

 
  1. Guidelines for the use of diode test lamps:
Mainly to test the signal of the injector, there is a signal that the test light will flash. If the test light is always on or off, the injector signal is abnormal.
Use a slinger to puncture the two wires of the corresponding injector and connect the test lamp.
 

 
  1. the use of potentiometers:
Mainly to simulate the sensor signal, observe the changes of the data stream through the corresponding computer detector to determine the quality of the line.
Main analog pressure sensor types: pressure sensors: rail pressure sensors, oil pressure sensors, intake pressure sensors, urea pump pressure sensors, etc.
The analog pressure sensor is used as shown in the figure below. The positive and negative electrodes can be exchanged during use. The middle line must be connected to the signal line; 

 
After the connection is completed, the voltage of the rotary knob signal line will change between 0-5V to determine the quality of the line.
 
When simulating the temperature sensor, only 2 lines are used: the positive and signal can be used, and the signal and negative can be used.
Main analog temperature sensor types: water temperature sensor, intake air temperature sensor, oil temperature sensor, fuel temperature sensor, urea tank temperature sensor, liquid level sensor, post-treatment exhaust temperature sensor, etc.
After the connection is completed, the voltage of the rotary knob signal line will change between 0-5V to determine the quality of the line.
Other guidelines for the use of fuses and resistors are not described here, please refer to the vehicle's service manual.