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54-26
CHASSIS ELECTRICAL –
HEADLAMP AND FRONT TURN-SIGNAL LAMP
SERVICE SPECIFICATIONS
Items
Headlamp aiming for low
beam
beam
Headlamp intensity cd
SPECIAL TOOLS
Tool
A
B
C
D
TROUBLESHOOTING
The special tool (MB991223) should always be used to measure voltages and resistances when carrying
out troubleshooting.
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptoms
The lighting monitor buzzer doesn't sound under the following conditions while tail
lamps or headlamps illuminate.
When the ignition switch is turned to OFF and the driver's side door is open.
Headlamp leveling does not occur when the headlamp leveling switch is operated.
Headlamp and Front Turn-signal Lamp
Vertical direction
Horizontal direction
Number
Name
MB991223
Harness set
A: MB991219
A: Test harness
B: MB991220
B: LED harness
C: MB991221
C: LED harness
adapter
D: MB991222
D: Probe
MB990784
Ornament remover
Standard value
60 mm below horizontal (H)
Position where the 15_ sloping section
intersects the vertical line (V)
–
Use
Making voltage and resistance measure-
ments during troubleshooting
A: Connector pin contact pressure in-
spection
B: Power circuit inspection
C: Power circuit inspection
D: Commercial tester connection
Removal of switch garnish
54200030052
Limit
–
–
30,000 or more
54200060099
54200070573
Inspection
Reference
procedure
page
1
54-27
3
54-28
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