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ELEC
EAS00790
3. The tail/brake light fails to come on.
1. Tail/brake light bulb and socket
8 Check the tail/brake light bulb and socket for
continuity.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”
8 Are the tail/brake light bulb and socket OK?
YES NO
Replace the tail/brake
light bulb, socket or
both.
LIGHTING SYSTEM
2. Voltage
8 Connect the pocket tester (DC 20 V) to the
tail/brake light coupler (wire harness side)
as shown.
Positive tester probe
JJ
JJ
J blue
11
11
1
Negative tester probe
JJ
JJ
J black
22
22
2
8 Set the main switch to “ON”.
8 Measure the voltage (DC 12 V) of blue 1 on
the meter light coupler (wire harness side).
8 Is the voltage within specification?
YES NO
The wiring circuit from
the main switch to the
tail/brake light coupler
is faulty and must be
repaired.
Refer to “CIRCUIT
DIAGRAM”.
This circuit is OK.
2
1
L
Dg
G/Y
B
Ch
DC20V
G/Y
B
Ch
L
Dg
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