Mazda 2002 6 - Dtc B2388; Dtc B2389

ON-BOARD DIAGNOSTIC [DISCHARGE HEADLIGHT]
T–146–3
T
End Of Sie
DTC B2388
A6E818867000W07
Diagnostic procedure
End Of Sie
DTC B2389
A6E818867000W08
Diagnostic procedure
DTC B2388 Discharge headlight operating voltage out of range.
DETECTION
CONDITION
Warning
• Incorrect servicing of the discharge headlight control unit could result in electrical shock.
Before servicing the discharge headlight control unit, always refer to “Discharge headlight
service warnings”. (See T–25 DISCHARGE HEADLIGHT SERVICE WARNINGS)
• Discharge headlight operating voltage is outside specification (68V—112V) when inspected 3 minutes
after illumination.
POSSIBLE
CAUSE
• Discharge headlight bulb malfunction
• Discharge headlight bulb life
STEP INSPECTION ACTION
1 INSPECT DISCHARGE HEADLIGHT BULB
• Does discharge headlight illuminate normally?
Yes After correcting fit, clear DTC and check DTC again after
more then 3 minutes low beam on.
• If DTC is displayed again, replace discharge
headlight bulb.
(See T–28 HEADLIGHT BULB REMOVAL/
INSTALLATION)
No Replace discharge headlight bulb.
(See T–28 HEADLIGHT BULB REMOVAL/
INSTALLATION)
DTC B2389 Discharge headlight illumination malfunction
DETECTION
CONDITION
Warning
• Incorrect servicing of the discharge headlight control unit could result in electrical shock.
Before servicing the discharge headlight control unit, always refer to “Discharge headlight
service warnings”. (See T–25 DISCHARGE HEADLIGHT SERVICE WARNINGS)
• Automatic reillumination (discharge headlight reilluminates automatically when illumination is
interrupted during normal illumination) occurs twice within 1 minute.
POSSIBLE
CAUSE
• Discharge headlight bulb malfunction
• Discharge headlight bulb life
STEP INSPECTION ACTION
1 INSPECT DISCHARGE HEADLIGHT BULB
• Does discharge headlight illuminate normally?
Yes After correcting fit, clear DTC and check DTC again.
• If DTC is displayed again, replace discharge
headlight bulb.
(See T–28 HEADLIGHT BULB REMOVAL/
INSTALLATION)
No Replace discharge headlight bulb.
(See T–28 HEADLIGHT BULB REMOVAL/
INSTALLATION)