Pioneer 1200 Maintenance Service Manual page 167

TROUBLESHOOTING AND ELECTRICAL SYSTEM: FE400 ENGINE
WAVETEK 5XL
V
V OFF
1000 500
200 200
20
200
2 2m
200 20
m
m
200
2000
m
k
200k
20k 200
Ω
A
2k
Ω
! !
V COM 200nA
MAX
1000 ---
FUSED
750V
3. Remove the wiring harness from the headlight (Figure 11-58, Page 11-47).
4. Use a multimeter set to 20 volts DC and place the black (–) probe of meter into the black wire terminal
of the wiring harness. Place the red (+) probe into the blue wire terminal.
5. Pull the light switch to the ON position. If the multimeter reads approximately 12 volts, replace the head-
light bulb.
6. If there is no voltage reading at the wiring harness, check continuity of the 16-gauge blue wire from the
headlight to the light switch. Use a multimeter set to 20 volts DC and attach the black (–) probe of mul-
timeter onto the negative battery terminal and place the red (+) probe into the blue wire terminal of the
wiring harness. If the multimeter reading is approximately 12 volts, the blue wire has continuity.
7. Check continuity of the 16-gauge black wire from the headlight to the ground terminal. Use a multimeter
set to 20 volts DC and place the black (–) probe of multimeter into the black wire terminal of the wiring
harness and attach the red (+) probe onto the positive battery terminal. If the multimeter reading is
approximately 12 volts, the black wire has continuity.
WAVETEK 5XL
BLUE WIRE
V
V OFF
1000
500
200 200
20
200
WIRE HARNESS
2 2m
200 20
m
m
200
2000
m
k
200k
20k 200
Ω
A
2k
Ω
! !
V COM 200nA
MAX
1000 ---
FUSED
750V
Figure 11-58 Check Voltage to Headlight Socket
2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
LIGHT
SWITCH
Figure 11-57 Headlight Diode Circuit Test
BLACK WIRE
LEFT
HEADLIGHT
11
Test Procedures
Page 11-47