E-TON EV3 E-MO - Page 65

LIGHTING SYSTEM
6-9
CHECKING THE LIGHTING SYSTEM
1. The headlight fail to come on.
1. Headlight bulb and socket
• Check the headlight bulb and socket for
continuity.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”
• Are the headlight bulb and socket OK?
2. Voltage
• Connect the pocket tester (DC 20 V) to the
headlight couplers as shown.
Replace the headlight
bulb, socket or both.
YES
NO
Positive tester probe
red/white
brown/yellowNegative tester probe
2
2
1
1
–+
ELEC
Br/Y
Br/Y
R/W
R/W
12V 35W
• Set the main switch to “ON”.
• Measure the voltage (DC 12 V) on the
headlight coupler (wire harness side).
• Is the voltage within specification?
Wiring circuit from
the main switch to
the headlight light
coupler is faulty and
must be repaired.
This circuit is OK.
YES
NO
3. The tail/brake light fails to come on.
1. Tail/brake light bulb and socket
• Check the tail/brake light bulb and socket
for continuity.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”
• Are the tail/brake light bulb and socket OK?
2. Voltage
• Connect the pocket tester (DC 20 V) to the
tail/brake light coupler (wire harness side)
as shown.
Positive tester probe
red/white
Negative tester probe
brown/yellow
Replace the
tail/brake light bulb,
socket or both.
YES
NO
12V 21/5W
R/W
Br/Y
G/Y
1
2
1
2
• Set the main switch to “ON”.
•Measure the voltage (DC12V) on the
tail/brake light coupler (tail/brake light
side).
• Is the voltage within specification?
Wiring circuit from
the main switch to
the tail/brake light
coupler is faulty and
must be repaired.
This circuit is OK.
YES
NO
Br/Y
R/W
G/Y