Mazda 2002 6 Workshop Manual page 1063

ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
DTC B2619
DTC B2619 Rear auto leveling sensor signal system.
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
Output signal is not sent from the rear auto leveling sensor.
• Rear auto leveling sensor malfunction
POSSIBLE
• Open or short circuit in wiring harness between rear auto leveling sensor and headlight (LH)
CAUSE
• Headlight (LH) malfunction
Diagnostic procedure
STEP
INSPECT REAR LEVELING SENSOR
CONNECTION
1 • Check installation condition of rear auto
leveling sensor and fit of connector.
• Are installation condition and fit okay?
INSPECT WIRING HARNESS BETWEEN
REAR AUTO LEVELING SENSOR
CONNECTOR AND HEADLIGHT (LH)
CONNECTOR
• Disconnect rear auto leveling sensor
connector (6-pin) and headlight (LH)
2
connector (4-pin).
• Is there continuity between the following
connectors?
— Rear auto leveling sensor connector
(terminal B) and headlight (LH) connector
(terminal 2D)
INSPECTION
WARNINGS)
Yes Go to next step.
No After correcting fit, clear DTC and check DTC again.
• If DTC is displayed again, go to next step.
Yes Go to next step.
No Repair or replace wiring harness between rear auto leveling
sensor and headlight (LH).
A6E816467000W09
T–25
ACTION
T–157
T