Mazda 6 2002, Workshop Manual

Page: 1065 / 1248

ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
T–159
T
DTC B2735
A6E816467000W11
Diagnostic procedure
End Of Sie
DTC B2735 Headlight leveling actuator signal 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 )
Output signal to headlight leveling actuator is abnormal.
POSSIBLE
CAUSE
•
Headlight leveling actuator malfunction
•
Auto leveling control unit malfunction
•
Headlight malfunction
STEP INSPECTION ACTION
1
INSPECT CONNECTOR CONNECTION
•
Check fit of auto leveling control unit.
•
Is condition of the fit okay?
Yes Possible cause is headlight wiring harness malfunction or
malfunctioning headlight leveling acutuator.
Replace headlight and go to next step. (See
T–26 FRONT
COMBINATION LIGHT REMOVAL/INSTALLATION )
No After correcting fit, clear DTC and check DTC again.
•
If DTC is displayed again, go to next step.
2
•
Does headlight leveling actuator work
properly? Yes Troubleshooting completed.
No Replace auto leveling control unit.
(See
T–30 DISCHARGE HEADLIGHT CONTROL UNIT
REMOVAL/INSTALLATION )