Jeep WK2 Grand Cherokee Adaptive Bi-Xenon Headlamps

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Adaptive Bi-Xenon headlamps

 

The Adaptive Bi-Xenon headlamps have been launched for the 2014 mannequin yr, and discontinued (for unknown causes) on the finish of the 2015 mannequin yr. They will most like reappear on future fashions of the Grand Cherokee.

The adaptive ahead lighting headlamps alter as much as 15 levels to assist illuminate the street round corners at evening. These high-tech headlamps “comply with” the steering wheel based mostly on pace and steering angle to provide the benefit of seeing what’s up forward. HID headlamps additionally help the ahead lighting characteristic and supply wonderful lighting.

An extra advantage of adaptive headlights is that they forestall glare off the headlights for oncoming visitors. Also, if the automobile goes uphill or downhill, the headlights sense that and the bulbs will level downward/upward, once more to assist shield oncoming visitors from glare and “blinding.” When driving, oncoming visitors is normally on the left facet of a car and thus it is necessary when turning left to have headlights that don’t level straight into oncoming visitors. As a car turns proper, there are not any oncoming lanes to the proper facet of the automobile and in flip the sunshine can shine at a bigger angle. The headlamps even have a characteristic that auto-levels them when car weight change happens to keep up optimum goal. This characteristic is nice for if you find yourself turning corners as a result of it lights the street forward of you, moderately than ready for the sunshine to meet up with you.

Bi-xenon adaptive HID headlights present a really crisp and brilliant gentle, with a blue-tinted hue coming off the lights. These headlamps present extra gentle output than customary reflector lamps and in addition generate much less warmth, which is vital in stopping the LED bulbs inside from burning out.

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Vehicles outfitted with the optionally available Adaptive Front Lighting System (AFLS) (which incorporates the options previously often known as the headlamp leveling system) are additionally outfitted with an AFLS module. The AFLS module is hooked up to the passenger headlamp meeting.

This module works along side the entrance and rear axle (leveling) sensors, the headlamp leveling motors, the headlamp swiveling motors and email correspondence inputs obtained over the Controller Area Network (CAN) knowledge bus from different digital modules within the car. The module gives computerized headlamp beam goal adjustment to compensate for modifications in car top or route attributable to modifications in car loading, acceleration, deceleration, steering wheel angle and YAW price.

Concealed inside the module housing is the circuitry of the module itself, which features a microcontroller. The module is related to the car electrical system by means of an integral connector receptacle by a take out and connector of the headlamp and sprint wire harness.

Description

Vehicles outfitted with the optionally available Adaptive Front Lighting System (AFLS) (which incorporates the options previously often known as the headlamp leveling system) are additionally outfitted with an AFLS module. The AFLS module is hooked up to the passenger headlamp meeting.

This module works along side the entrance and rear axle (leveling) sensors, the headlamp leveling motors, the headlamp swiveling motors and email correspondence inputs obtained over the Controller Area Network (CAN) knowledge bus from different digital modules within the car. The module gives computerized headlamp beam goal adjustment to compensate for modifications in car top or route attributable to modifications in car loading, acceleration, deceleration, steering wheel angle and YAW price.

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Concealed inside the module housing is the circuitry of the module itself, which features a microcontroller. The module is related to the car electrical system by means of an integral connector receptacle by a take out and connector of the headlamp and sprint wire harness.

The AFLS module can’t be adjusted or repaired and, if ineffective or broken, it should be changed. The AFLS module is Flash programmable.

 

Operation

The microcontroller within the Adaptive Front Lighting System (AFLS) module accommodates the logic circuits and controls all the options of the AFLS. The AFLS module additionally controls the capabilities beforehand carried out by the Automatic Headlamp Leveling Module (AHLM). The AFLS module makes use of On-Board Diagnostics (OBD) and communicates with different digital modules within the car in addition to with a diagnostic scan device utilizing the Controller Area Network (CAN) knowledge bus. The AFLS module can be a Local Interface Network (LIN) grasp node and makes use of this methodology of communication to speak with the 2 stepper motors inside every proper and left entrance lamp unit.

The AFLS module microcontroller constantly displays email correspondence inputs from the Body Control Module (BCM) (also referred to as the Common Body Controller/CBC), the Integrated Center Stack (ICS), the Steering Angle Sensor (SAS), the Steering Column Control Module (SCCM) microcontroller and the Controller Antilock Brake (CAB) (also referred to as the Antilock Brake Module/ABM, the Antilock Brake System/ABS module or the Electronic Stability Control/ESC module). The AFLS module additionally energizes or de-energizes the entrance and rear axle sensors as acceptable to observe the car top. When the axle sensors are energized, the AFLS module displays and evaluates the Pulse Width Modulated (PWM) return alerts from these sensors.

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The AFLS module makes use of these inputs to find out steering wheel angle, car pace, accelerator pedal place, car yaw price and ABS standing. It then makes use of inside programming algorithms to compute the right email correspondence management outputs to offer over the LIN bus to the LIN slave headlamp leveling and headlamp swiveling stepper motors to regulate the headlamp beams vertically or horizontally as required. The AFLS module additionally constantly displays return inputs from the leveling and swiveling motors to verify stepper motor responsiveness in addition to the right positioning of the headlamp beams.

The AFLS module receives battery voltage on a fused ignition change output (RUN) circuit, and is grounded always by means of a tough wired distant floor level. These connections permit the AFLS module to function solely when the ignition change is within the ON place. The AFLS module additionally displays all the AFLS circuits and parts, then units energetic and saved Diagnostic Trouble Codes (DTC) for any monitored system defects it detects. The laborious wired circuits of the AFLS module could also be identified utilizing typical diagnostic instruments and procedures. Refer to the suitable wiring data. However, typical diagnostic strategies is not going to show conclusive within the prognosis of the AFLS module or the digital controls or communication between modules and different units that present some options of the AFLS. The most dependable, environment friendly, and correct means to diagnose the AFLS module or the digital controls and communication associated to AFLS operation requires using a diagnostic scan device. Refer to the suitable diagnostic data.

2014 Grand Cherokee SRT Adaptive Bi-Xenon headlamp

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