Mazda 6 2002 Workshop Manual page 1010

ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
STEP
INSPECT WIRING HARNESS BETWEEN
REAR AUTO LEVELING SENSOR
CONNECTOR AND HEADLIGHT (LH)
CONNECTOR
• Disconnect rear auto leveling sensor
connector (6-pin) and headlight (LH)
connector (4-pin).
3
• Is there no continuity between the following
connectors?
— Rear auto leveling sensor connector
(terminal B) and headlight (LH) connector
(terminal 2B)
— Rear auto leveling sensor connector
(terminal B) and headlight (LH) connector
(terminal 2A)
INSPECT HEADLIGHT (LH)
• Disconnect auto leveling control unit (main)
connector (20-pin) and headlight (LH)
connector (4-pin).
4
• Is there continuity between the following
connectors?
— Auto leveling control unit (main) connector
(terminal F) and headlight (LH) connector
(terminal 2D)
INSPECT HEADLIGHT (LH)
• Disconnect auto leveling control unit (main)
connector (20-pin) and headlight (LH)
connector (4-pin).
• Is there continuity between the following
connectors?
— Auto leveling control unit (main) connector
5
(terminal G) and headlight (LH) connector
(terminal 2D)
— Auto leveling control unit (main) connector
(terminal K) and headlight (LH) connector
(terminal 2D)
— Auto leveling control unit (main) connector
(terminal E) and headlight (LH) connector
(terminal 2D)
End Of Sie
DTC B2626, B2477
DTC B2626,
Headlight zeroset system for auto leveling control unit.
B2477
Warning
• • • • incorrect servicing of the auto leveling control unit could result in electrical shock because
DETECTION
CONDITION
Headlight zeroset for auto leveling control unit is not set.
POSSIBLE
• Headlight zeroset for auto leveling control unit is not set or the setting is invalid
CAUSE
Diagnostic procedure
Check connections of each sensor and the unit. Then connect WDS or equivalent and perform headlight zeroset.
(See T–31 HEADLIGHT ZEROSET)
End Of Sie
T–158
INSPECTION
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
DISCHARGE HEADLIGHT SERVICE
Yes Go to net step.
No Repair or replace wiring harness between rear auto leveling
sensor and headlight (LH).
Yes Go to net step.
No Possible cause is an open circuit in headlight (LH). Replace
headlight (LH). (See
REMOVAL/INSTALLATION)
Yes Replace rear auto leveling sensor.
(See T–32 REAR AUTO LEVELING SENSOR REMOVAL/
INSTALLATION)
No Possible cause is an open circuit in headlight (LH). Replace
headlight (LH). (See
REMOVAL/INSTALLATION)
WARNINGS)
ACTION
ACTION
T–26 FRONT COMBINATION LIGHT
T–26 FRONT COMBINATION LIGHT
A6E816467000W10
T–25