Mazda 6 2002 - Page 1000

T148
ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
DTC TABLE
A6E816467000W02
• DTCs are common for present and past malfunction diagnosis.
End Of Sie
DTC B1342
A6E816467000W03
Diagnostic procedure
End Of Sie
DTC B2141, B2477
A6E816467000W04
Diagnostic procedure
End Of Sie
DTC Description Page
B1342 Auto leveling control unit system. (See T148 DTC B1342)
B2141 Configuration setting system for auto leveling control unit. (See T148 DTC B2141, B2477)
B2390
Communication system between auto leveling control unit (main) and
auto leveling contro unit (sub).
(See T149 DTC B2390)
B2477 Auto leveling control unit setting system. 
B2607 Auto leveling control unit controlling system. (See T151 DTC B2607)
B2615
Front auto leveling sensor or rear auto leveling sensors power supply
system.
(See T153 DTC B2615)
B2616 Front auto leveling sensor signal system. (See T155 DTC B2616)
B2619 Rear auto leveling sensor signal system. (See T157 DTC B2619)
B2626 Headlight zerosetting system for auto leveling control unit. (See T158 DTC B2626, B2477)
B2735 Headlight leveling actuator signal system. (See T159 DTC B2735)
DTC B1342 Auto leveling control unit system.
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)
Auto leveling control unit does not work properly.
POSSIBLE
CAUSE
• Auto leveling control unit malfunction
• Poor fit of auto leveling control unit
STEP INSPECTION ACTION
1
INSPECT AUTO LEVELING CONTROL
UNIT CONNECTION
• Check fit of auto leveling control unit.
• Is condition of the fit okay?
Yes Replace auto leveling control unit.
(See T30 DISCHARGE HEADLIGHT CONTROL UNIT
REMOVAL/INSTALLATION)
No After correcting fit, clear DTC and check DTC again.
• If DTC is displayed again, replace auto leveling control
unit. (See T30 DISCHARGE HEADLIGHT CONTROL
UNIT REMOVAL/INSTALLATION)
DTC B2141,
B2477
Configuration setting system for auto leveling control unit.
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)
Configuration for auto leveling control unit is not set.
POSSIBLE
CAUSE
• Configuration for auto leveling control unit is not set or the setting is invalid
ACTION
Check connections of each sensor and the unit. Then connect WDS or equivalent and perform configuration.
(See T30 AUTO LEVELING CONTROL UNIT CONFIGURATION)