HEADLAMP LEVELING MODULE - EXPORT
DESCRIPTION
The Headlamp Leveling Module or HID Translator
Module is the remote electronic sub-component of the
headlamp leveling system. The HID translator module
is used to translate communication of the headlamps
leveling system. The sensors communicate over a
K-Line to the headlamp stepper motors, then to the
translator module. To enable the scan tool to read sys-
tem inputs and outputs, and to retrieve Diagnostic
Trouble Codes (DTC’s), the translator module must
convert this K-Line data into Controller Area Network
(CAN) data.
The HID translator module is located inside the right
front engine compartment, just behind the headlamp
unit. It is mounted to a stamped steel bracket by one
fastener and has one electrical connector that con-
nects it to the wiring harness.
OPERATION
The system is designed to automatically level the vehicles headlamps, regardless of cargo or passenger loads or
road conditions. When the vehicle is loaded with passengers and/or cargo, as the ignition is turned to RUN, the
system will look at the front and rear sensors and make an adjustment based upon feedback from the sensor to see
if it has approximately 27.5 degrees from its zero or neutral position. The headlamp stepper motor then adjusts the
headlamp up or down for proper headlamp aiming. The system is dynamic. The headlamp level will be adjusted
while driving if required based on sensor inputs.
NOTE: If the headlamp leveling module (HID translator module) or sensors are replaced, the system needs
to be calibrated using a Scan Tool.
When in calibration mode, the key in the RUN position, the vehicle doors, trunk/liftgate, and hood must be closed.
In addition, no one is seated in vehicle, the vehicle may not be touched (bounced or bumped) until the calibration
is complete. The headlamps must be ON to power the stepper motors. The approximate calibration time is 12 - 15
seconds. The scan tool will display a “status of calibration” message. These being either “still in progress”, “passed”,
or “failed.”
If a system fault occurs, the translator module will store the Diagnostic Trouble Code (DTC) and enable it to be read
using the scan tool and assist in diagnosing the headlamp leveling system.
8L - 106
LAMPS/LIGHTING - EXTERIOR - SERVICE INFORMATION
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