ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
T–149
T
DTC B2390
A6E816467000W05
DTC B2390
Communication system between auto leveling control unit (main) and auto leveling control unit
(sub).
DETECTION
CONDITION
Warning
• incorrect servicing of the auto leveling control unit could result in electrical shock because
the unit is integrated with the discharge headlight control unit. Before servicing the auto
leveling control unit, always refer to “Discharge headlight service warnings.” (See T–25
DISCHARGE HEADLIGHT SERVICE WARNINGS)
Communication between auto leveling control unit (main) and auto leveling control unit (sub) is not
performed.
POSSIBLE
CAUSE
• Auto leveling control unit (main) malfunction
• Open or shortcircuit in wiring harness between auto leveling control unit (main) and auto leveling
control unit (sub)
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