Mazda 2002 6 - Dtc B2387

T–146–2
ON-BOARD DIAGNOSTIC [DISCHARGE HEADLIGHT]
RHID
End Of Sie
DTC B2386
A6E818867000W05
Diagnostic procedure
End Of Sie
DTC B2387
A6E818867000W06
Diagnostic procedure
PID Name
(Definition)
Unit/
Condition
Condition/Specification
Discharge headlight
control unit (RH)
terminal
CCNT
(Number of continuous codes)
—
• DTC is detected: 1—255
• DTC is not detected: 0
—
ONDEMDTC
(Number of on-demand codes)
—
• DTC is detected: 1—255
• DTC is not detected: 0
—
L_VOLT_R
(Discharge headlight control unit (RH) input
voltage)
VOLTAGE
Headlight switch at ON:
B+
D
GDL_P_R
(Output power to discharge headlight bulb (RH))
WATT
Headlight switch at ON:
35—65 W
—
GDL_V_R
(Output voltage to discharge headlight bulb
(RH))
VOLTAGE
Headlight switch at ON:
68—112 V
—
DTC B2386 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)
• Discharge headlight does not illuminate though preparation has been completed.
POSSIBLE
CAUSE
• Discharge headlight bulb malfunction
• Ignitor in front combination light is malfunctioning.
STEP INSPECTION ACTION
1 • Are DTCs B2388 and/or B2389 indicated? Yes Replace discharge headlight bulb.
(See T–28 HEADLIGHT BULB REMOVAL/
INSTALLATION)
No Ignitor in front combination light may be malfunctioning.
Replace front combination light.
(See T–26 FRONT COMBINATION LIGHT REMOVAL/
INSTALLATION)
DTC B2387 Ignitor circuit 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)
• Ignitor in front combination light is malfunctioning or poorly connected.
POSSIBLE
CAUSE
• Ignitor in front combination light is malfunctioning.
• Ignitor in front combination light is poorly connected.
STEP INSPECTION ACTION
1 INSPECT CONNECTOR CONNECTION
• Check fit of discharge headlight control unit and
headlight connectors on both sides (discharge
headlight control unit (LH) and (RH)).
• Are installation condition and fit okay?
Yes Ignitor in front combination light may be malfunctioning.
Replace front combination light.
(See T–26 FRONT COMBINATION LIGHT REMOVAL/
INSTALLATION)
No After correcting fit, clear DTC and check DTC again.
• If DTC is displayed again, replace front combination
light.
(See T–26 FRONT COMBINATION LIGHT
REMOVAL/INSTALLATION)