E-TON EV3 E-MO Service Manual download pdf (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

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