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IICL CHASSIS INSPECTOR COMPLETE EXAM 2024| ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS| SCORED 100%
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IICL CHASSIS INSPECTOR COMPLETE EXAM 2024| ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS| SCORED 100%
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IICL CHASSIS INSPECTOR COMPLETE EXAM 2024|ACTUAL EXAM QUESTIONS AND CORRECT
ANSWERS| SCORED 100%
What is traction control?
Helps the ABS improve vehicle traction by minimizing wheel slip on the drive axle during acceleration.
What is ABS?
Antilock braking systems are electronic systems that monitor and control wheel slip during vehicle
braking.
What are the components of ABS?
electronic control unit (ECU), wheel speed sensors, modulator valves, exciter rings
In ABS, what is the function of the electronic control unit (ECU)?
Processes all ABS info and signal functions. Receives and interprets voltage pulses generated by the
sensor pickup as the exciter teeth pass by, and uses this info to determine: (a) impending wheel lock,
and (b) when/how to activate the ABS modulator valves.
In ABS, what is the function of the modulator valves?
Regulate air pressure to the brakes during ABS action. ECU commands mod valve to either change the
air pressure to the brake chamber, or hold the existing pressure.
In ABS, what are the 2 main components of the wheel speed sensors?
(1) exciter, and (2) pickup
, In ABS, what is an exciter?
A ring with notched teeth, also known as sensor ring, tooth wheel, tone ring, and exciter.
In ABS, what is an pickup?
Commonly called "the sensor" which contains a wire coil/magnet assembly, which generates pulses of
electricity as teeth of the exciter pass in front of it.
Which pin/wire is the power supply for ground on a 7-way plug?
Pin 1 - white
Which pin/wire is the power supply for stop and antilock on a 7-way plug?
Pin 2 - red
Which pin/wire is the power supply for power for electronic control unit (ECU) on a 7-way plug?
Pin 3 - blue
Which pin/wire is the power supply for identification, front and intermediate markers, front clearance,
rear markers, license, tail and rear clearance on a 7-way plug?
Pin 4 - brown
Which pin/wire is the power supply for right directional on a 7-way plug?
Pin 5 - green
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