1. First check the car's ignition switch to determine the normal condition of the engine;
2. If the car ignition switch is off, turn on the car ignition switch;
3. the buzzer circuit to ensure that there is no short circuit or crack;
4. Check the backup generator voltage and determine if it is at normal voltage
5. that the generator voltage is normal, check the buzzer solenoid coil for damage.
6. If damaged, the buzzer may need to be replaced; if the inspection results are normal, the buzzer can be removed to eliminate the noise.
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How to use the insulation resistance tester?
Question? Why does the new Santa Fe EPB trouble light come on?
Main answer
The initial breakdown of this car occurred whenthe engine started and the gear lever could not be moved out of the P position. At the same time, the engine malfunction occurred. Light and EPB system. The fault lights will all come on. Later, the customer used the emergency manual unlock method to move the gear lever out of the P position. At that time, the vehicle could drive, but there would be obvious impact when shifting gears . However, these defects do not persist. Sometimes, as long as the customer stops the vehicle and moves the shift lever several times, the fault may disappear. After understanding these fault phenomena, our maintenance technicians first used the original GDS diagnostic instrument to scan the MI error codes of each system in the car when picking up the car. The results showed that there were no error code recordings in the engine and system. the TRAnautomatic transmission The system and the EPB system have recorded error codes P0705 and C1646 respectively.
1. Front panel description (serial number matches the serial number on the panel layout drawing)
(1) “Power” switch, press this switch to turn on the device.
(2) “Reset” button: Press this button to stop the test. The output test current is cut off and the green light turns off. If the instrument is in an over-resistance alarm state, press this button to clear the alarm before proceeding to the next test.
(3) “Start” button: Turn on the power switch and the instrument will be in reset state. Preset the resistance value in advance and connect the load. Press this button once to adjust the test current to perform the resistance test. At this time, the green test light will illuminate. If this button is pressed without a charge is connected, an open circuit alarm will occur, which may mean that the object under test and the test instrument are not connected properly and are in an open circuit state.
(4) “Manual/Timing” switch: Press this switch and the instrument will be in the timing test state. At this time, set (7) the timer to the test duration required to complete the synchronization. test ; pop-up With this switch, the instrument is in manual test state. At this time (7), the timer will not run and the instrument must be manually “reset” once the test is complete.
(5) “Preset/Measurement” switch: Press this switch and the instrument is in the resistance preset state. At this time, adjust the “Preset Resistance” potentiometer to the required resistance setting value and test as follows. time asIf the resistance value of the tested component is greater than or equal tothe preset value, the instrument will be in a resistance limit exceeded alarm state, indicating that the tested component is not qualified. Press the reset button to clear the alarm.
(6) “Preset Resistance”: Corresponding to (5) “Preset/Measurement” switch, the resistance setting value increases clockwise and decreases counterclockwise clockwise.
(7) “Timer”: Dial switch during timing test, timing time can be set from 1-99s. When the timing test is not used, the switch (4) can be placed in "manual". " position.
(8) Multi-function display: used to display "timing time", "tested key resistance value" and "test current value"
(9) "Test" Green Light: Press the start button and the green light will turn on, indicating the dstart of the test. Before that, the load must be connected and the resistance value must be preset.
(10) “Overlimit” yellow light: When the resistance value of the component under test is greater than or equal to the resistance setting value, the instrument generates an overresistance alarm. This yellow light is. lit, indicating that the tested component is not successful at this time, press the “Reset” button to cancel the alarm signal.
(11) “Test current” adjustment: Adjust this voltage regulator to adjust the output voltage, thereby adjusting the test current in the load to the specified value.