Mazda 2002 6 Workshop Manual page 1055

ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
DTC B2390
Communication system between auto leveling control unit (main) and auto leveling control unit
DTC B2390
(sub).
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
DETECTION
leveling control unit, always refer to "Discharge headlight service warnings." (See
CONDITION
DISCHARGE HEADLIGHT SERVICE
Communication between auto leveling control unit (main) and auto leveling control unit (sub) is not
performed.
• Auto leveling control unit (main) malfunction
POSSIBLE
• Open or shortcircuit in wiring harness between auto leveling control unit (main) and auto leveling
CAUSE
control unit (sub)
WARNINGS)
A6E816467000W05
T–25
T
T–149