Dtc B2388; Dtc B2389 - Mazda 2002 6 Workshop Manual

ON-BOARD DIAGNOSTIC [DISCHARGE HEADLIGHT]
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DTC B2388

DTC B2388 Discharge headlight operating voltage out of range.
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
DETECTION
service warnings". (See
CONDITION
• Discharge headlight operating voltage is outside specification (68V—112V) when inspected 3 minutes
after illumination.
• Discharge headlight bulb malfunction
POSSIBLE
• Discharge headlight bulb life
CAUSE
Diagnostic procedure
STEP
1 INSPECT DISCHARGE HEADLIGHT BULB
• Does discharge headlight illuminate normally?
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DTC B2389

DTC B2389 Discharge headlight illumination malfunction
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
DETECTION
service warnings". (See
CONDITION
• Automatic reillumination (discharge headlight reilluminates automatically when illumination is
interrupted during normal illumination) occurs twice within 1 minute.
• Discharge headlight bulb malfunction
POSSIBLE
• Discharge headlight bulb life
CAUSE
Diagnostic procedure
STEP
1 INSPECT DISCHARGE HEADLIGHT BULB
• Does discharge headlight illuminate normally?
T–25 DISCHARGE HEADLIGHT SERVICE
INSPECTION
T–25 DISCHARGE HEADLIGHT SERVICE
INSPECTION
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)
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)
A6E818867000W07
WARNINGS)
ACTION
A6E818867000W08
WARNINGS)
ACTION
T–146–3
T