Connectors do not cause any problem even if they get a little wet.

Before body repair work is performed, all electrical components must be removed.

Even if a wire harness clamp is damaged and the wire harness is excessively slack, no repair is needed.

The oscilloscope can display voltage changes that accompany time changes.

Current is the motion of electrons, which travels from negative to positive

A faulty electronic part may be caused by a poor contact; therefore, first of all, lightly tap or shake the electronic part

When placing tester probes in contact with the connector terminals in the engine compartment, penetrate the waterproof plug with a needle

When a current flows through a conducting wire, a magnetic field is generated around the conducting wire

If the solenoid valve has a short circuit, an excessively large current may flow in the control module

In a circuit where current is flowing, an equal voltage is applied to the resistances connected in series.

If even a slight difference occurs between the sensor input value and actual condition through aged deterioration, fail-safe control is<br />enabled to provide adequate control

If the injector does not operate, the cause can be identified by inspecting the injector and its circuit.

The engine coolant temperature detected by the ECT sensor is almost consistent with the engine coolant temperature in the radiator

Materials are classified into conductors, semiconductors, and insulators according to how easily they conduct electricity.<br />Semiconductors conduct electricity most easily.

When a customer complains about a problem, conduct a customer complaint analysis only if you cannot identify the cause of the problem by troubleshooting

To disconnect a connector, unlock the connector and pull it out while holding the wiring part firmly.

When the generator B terminal is loosened, the tool may come in contact with the vehicle body, resulting in a short circuit. However, this can be prevented by turning the ignition OFF.

If the data list value "Desired Idle" on the scan tool is extremely low, a diagnosis must be conducted focusing mainly on insufficient intake air volume at idling due to a dirty throttle valve

A problem symptom appearing in an electrical component may deteriorate when the electrical component is heated

The unit of current is ampere, indicating the electrical quantity per unit time, or the flow of coulomb

When inspecting the EVAP solenoid valve, check that the air tightness is maintained when the solenoid valve is turned OFF.

When a vacuum gauge is used in inspection of a solenoid, care must be taken not to apply an excessively high negative pressure

In a circuit where current is flowing, the voltage drop across resistors in series is proportional to the resistance

When a voltage is applied to a circuit, valence electrons start traveling and the motion of valence electrons does not change even if<br />the voltage drops

If wiring that must not get wet, such as wiring in an internal harness etc., does become wet, it must be inspected together with rain leakage

In troubleshooting, you should not disconnect or connect connectors carelessly

In the circuit shown in the figure, if the resistance of the wiring between the ECM and switch is large, the voltage value in the figure increases when the switch is turned ON.

When abnormal fuel injection is suspected, the injector and its wiring are considered to be good if the injector operating sound is<br />heard

Semiconductors conduct electricity more easily than conductors and insulators

As a result of saving snapshots with a scan tool, it was found that the engine coolant temperature rose by 80 °C in only one second.<br />In this case, overheating due to insufficient coolant, a faulty radiator fan, or other problems should be suspected.

As a conductor increases in length, its resistance increases.

Understanding the "DTC detecting condition" in the service manual may allow you to reduce the time needed for troubleshooting.

In measurement with connector terminals, using a lead wire provides improved measurement accuracy

Different atoms have different numbers of valence electrons. As the number of valence electrons in the atom approaches the<br />electron capacity, current flows more easily.

When washing the engine compartment with a high pressure car washer, be careful not to expose any electrical components to water pressure for five seconds or more.

To measure the resistance inside the battery, set the multi tester to the resistance range and place the tester probes between the battery terminals to measure the resistance.

The engine control systems used in the existing Suzuki's vehicles detect a DTC when any problem occurs.

Magnetomotive force is the force that generates magnetic flux in a magnetic circuit

Even if the ECM circuit has an open circuit and the input voltage increases abnormally, no DTC is detected if it does not last long.

If a poor contact between the connector terminals is suspected, polish the terminal contact area with a file to remove stains on the surface.

The resistance of metals decreases as temperature increases

Even if the pinion is stuck extended from the starting motor, the starting motor does not fail because the overrunning clutch operates.

The magnetic field is generated to the left in the direction in which the current flows.

Because the actuator is activated based on the commands from the control module, the control module always has a grip on the<br />operation of the actuator

The force of electricity causes valence electrons to get out of their orbits, thereby causing current to flow.

As a result of saving snapshots with a scan tool, it was found that the "Inj Pulse Width" was frequently recorded to be 0.000 ms during idling.<br />In this case, the injectors are suspected of having an intermittent open circuit.

The direction of electromagnetic force is determined by the direction in which the current flows.

The ECM can detect a failure if there is a significant difference between the input signal and actual condition due to an open- or<br />short-circuited signal line or for other reasons.

Even if wire harness coating is not broken, only the core wire may have been broken

If the resistance of a hot solenoid valve is checked, the solenoid valve may be misdiagnosed as having an excessively high resistance

When a voltage is applied to a circuit, valence electrons start traveling and the motion of valence electrons does not change even if<br />the voltage drops

At a customer complaint analysis, you are required to ask customers questions with knowledge necessary to conduct troubleshooting

The resistivity of a semiconductor increases with an increase in temperature.

If the board inside the control module is suspected of being faulty, measure the resistance in the circuit inside the control module<br />with the digital-type multi tester set to the resistance range.

When the wiring resistance in an electronic control circuit is measured, disconnecting the battery negative terminal prevents unnecessary current from flowing in the control module.

Hall IC-type sensors, like potentiometer-type sensors, should be inspected by measuring the internal resistance

In automotive electric wiring, no problem occurs with the contact resistance between the terminals as long as the connector is fit<br />properly

If the resistance is excessively high due to a corroded ECT sensor terminal, the engine coolant temperature detected by the ECM will be higher than the actual engine coolant temperature

Even if the CKP sensor is installed improperly and the distance between the CKP sensor and sensor plate increases, the speed can be detected accurately.

If you form a conducting wire into a coil shape, the higher the number of windings of the coil, the stronger the magnetic field<br />generated.

According to Joule's first law, the amount of heat released by a conductor is proportional to the product of the current flowing<br />through the conductor and the resistivity of the conductor.

Since clamps come in a variety of shapes, they should be carefully removed while feeling for the shape of the clip.

If a resistance is present at a connection inside the battery, part of electricity the battery originally has is consumed by the internal<br />resistance, causing the output voltage to drop.

For solenoid valves with duty control, the control module adjusts the voltage acting upon the solenoid valve to adjust the opening angle of the plunger.

There must be no slack at all in the harness.

The Hall IC is a sensor for detecting changes in magnetic flux density

If you cannot identify malfunction symptoms by test-driving the vehicle based on the results of the customer complaint analysis, you should perform a repair based on the presumed cause of the problem

The control module receives signals mainly due to changes in the current.

The engine coolant temperature detected with a scan tool is 100 °C but the actual engine coolant temperature is 80 °C. In such a case, a DTC is always detected

When a connector is disconnected, the technician for the previous work may have forgotten to connect it or its lock mechanism may have failed.

Re-connecting a connector may improve a poor terminal contact

Even if the actual intake air volume does not change, the ECM judges that the intake air volume has changed if the output voltage of<br />the MAF sensor changes due to a faulty MAF sensor or circuit.

Disconnect the battery negative terminal before disconnecting connectors. After that, do not connect the battery negative terminal with any connector disconnected.

Electrical resistance is the difficulty of electric current flow.

In the figure, all the resistors of the potentiometer are checked. If the potentiometer has an open circuit, the input voltage to the ECM becomes 0 V

In the solenoid valve shown in the figure, when the transistor in the control module turns ON, the voltage of the power source acts upon the solenoid valve

If connectors become wet due to oil leakage, there is the risk of short circuiting

The EVAP solenoid valve should be inspected for clogging by simply breathing into it.

The speed sensor uses the FET in it to detect changes in the magnetic flux caused by the rotation of the sensor plate.

If the sensor plate tooth is chipped, the CKP sensor cannot detect the tooth.

Even if the ECM or BCM, which are connected to a permanent power supply, are disconnected from the power supply, all the settings are memorized.

To remove a relay, lightly shake the relay side to side.

If the sensor input signal does not meet any of the conditions given in the "DTC detection condition," the status remains in "Current<br />DTC" until the ignition is turned OFF

Because customers may exaggerate problems or have misunderstandings, a customer complaint analysis is not useful in troubleshooting.<br />Therefore, you do not need to conduct a customer complaint analysis

For hall IC-type sensors, check the output voltage with the power source connected to the sensor.

If a sensor fails, a DTC is detected without exception. You do not need to inspect the systems on which no DTC has been detected.

If, instead of the signal line of the ECT sensor, the ground line has a significantly high resistance, the input voltage is not affected.

A possible reason why the voltage acting upon a load is low is a poor contact between the connector terminals.