As a professional OBD2 scanner, Foxwell NT630 Plus can not only provide an accurate and professional diagnosis of ABS/SRS/SAS faults but also removes air from the internal brake fluid chambers after servicing the brakes.
Moreover, It can perform active tests that can save your time and labor costs, temporarily allowing you to activate or control ABS/Airbag system and component, including switches, sensors, relays & actuators.
The following content will explain the all-around special diagnostic functions of Foxwell NT630 Plus to the customers who have already purchased this product or want to place an order to get one.
What are Special Function Tests & what can they do?
Special tests are bi-directional diagnostic tests on anti-lock brake systems and airbags. The tests let you use the scanner to temporarily activate or control a vehicle system or component, and when you exit the test, the system/component returns to normal operation.
Some tests display command to the operator. For example, if “Press Brake Pedal” displays, the operator has to press and hold the brake pedal and then continue. The number and type of tests will vary for each vehicle, year, and components.
Typical special test options include:
●ABS Manual Control Tests–allows to manually control the actuators in order to test ABS motors, solenoids, solenoid enables relays, EMBs, and more.
●ABS Motor Test–allows to manually control the ABS pump motor.
●ABS Version Test–displays the name of the brake system and the ABS controller version number, software ID, and sequence value.
●Actuator Tests–allows to manually control the actuators in order to test AYC valves, inlet valves, outlet valves, pump motors, and TRACS valves.
●Auto Bleed Test, Automated Bleed, or Service Bleed–removes air from the internal brake fluid chambers after servicing the brakes
Before bleeding the brake system, make sure no diagnostic codes are present.
Do not let the master cylinder run dry during the brake bleeding procedure.
Warning Messages for the Vehicle Tests:
After bleeding the brake system, check the brake pedal for excessive travel or a “spongy” feel. Bleed again if either condition is present.
● Automated Test – automatically commands each solenoid valve and the pump motor on and off to test for proper operation.
● Brake Bleed Preparation Test – prepares the brake lines for bleeding by clearing the air from the modulator. The test rehomes all the ABS and TCS motors, cycles the TCS motors, and then returns all motors to the “home” position at the bottom of the bore.
● Function Test – automatically commands the ABS relay, valve solenoids, and pump motor on and off to test for proper operation.
● Gear Tension Relief Test – relieves tension from the ABS motor gears so you can separate the ABS motor pack from the ABS hydraulic modulator.
● Hydraulic Control Tests – allows to manually engage and disengage the ABS solenoids for troubleshooting the hydraulic functions.
● Idle Up Manual Control Test – allows to manually control the idle up actuators.
● Lamp Tests – allows to manually control the ABS or TCS warning or indicator lamps.
● Motor Rehome Test – prepares the brake lines for bleeding by clearing the air from the modulator. The test returns all ABS motors to their “home” positions.
● Pump Motor Tests – allows to manually control the pump motor.
● Relay Test – allows to manually engage and disengage either the ABS or TCS relays in order to test relay operation.
● Requested Torque Test – allows to manually control the engine torque to test for proper operation of the traction control system (TCS).
● Setup SDM Serial Number (Air Bag Sensing and Diagnostic Module) – allows programming a new airbag serial number into the dash integration module (DIM). You use this test after installing a new airbag; otherwise, a diagnostic trouble code will be set when you turn on the ignition.
● Solenoid Tests – allows to manually control the inlet and output valve solenoids.
● System Identification – displays information about the brake system, the vehicle, and the ABS controller.
● TCS Test – allows controlling the pump motor in order to apply fluid pressure to the front wheel circuits.
● Traction Control System (TCS) Manual Control Tests – allows performing motor tests and an adjuster assembly control test.
● Voltage Load Test – “loads” the ABS battery supply circuit to test for adequate battery capacity
How to perform special tests on a vehicle?
1. Scroll with the arrow keys to highlight the special function test you want to perform from the menu and press the ENTER key.
2. A group selection screen, test selection screen, several step-by-step instruction screens, or bi-directional control screen may appear. Read the screens and follow all instructions. If necessary, use the function keys to perform commands or answer any questions. If more than 3 function keys displays, use up and down arrow keys to select a command and press the ENTER key to confirm.
3. When completed, press the BACK key to return to previous screens.
Message to be noted:
Not all function options listed above are applicable to all vehicles. Available options may vary by the year, model, and make of the test vehicle.
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