Mazda 2002 6 Workshop Manual page 1065

ON-BOARD DIAGNOSTIC [HEADLIGHT AUTO LEVELING SYSTEM]
DTC B2735
DTC B2735 Headlight leveling actuator 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 to headlight leveling actuator is abnormal.
• Headlight leveling actuator malfunction
POSSIBLE
• Auto leveling control unit malfunction
CAUSE
• Headlight malfunction
Diagnostic procedure
STEP
INSPECT CONNECTOR CONNECTION
• Check fit of auto leveling control unit.
• Is condition of the fit okay?
1
• Does headlight leveling actuator work
properly?
2
End Of Sie
INSPECTION
WARNINGS)
Yes Possible cause is headlight wiring harness malfunction or
malfunctioning headlight leveling acutuator.
Replace headlight and go to next step. (See
COMBINATION LIGHT
No After correcting fit, clear DTC and check DTC again.
• If DTC is displayed again, go to next step.
Yes Troubleshooting completed.
No Replace auto leveling control unit.
(See T–30 DISCHARGE HEADLIGHT CONTROL UNIT
REMOVAL/INSTALLATION)
A6E816467000W11
T–25
ACTION
T–26 FRONT
REMOVAL/INSTALLATION)
T–159
T