Yamaha XT660R Service Manual page 425

6. Voltage
• Connect the pocket tester (DC 20 V) to the
turn signal/hazard relay coupler (wire har-
ness end) as shown.
Positive tester probe → brown/white 1
Negative tester probe → ground
• Set the main switch to "ON".
• Set the turn signal switch to "
• Measure the voltage (DC 12 V) of brown/
white 1 at the turn signal/hazard relay
coupler (wire harness end).
• Is the voltage within specification?
YES
7. Voltage
• Connect the pocket tester (DC 20 V) to the
turn signal light connector or meter assem-
bly coupler (wire harness end) as shown.
È Front turn signal light
É Rear turn signal light
Ê Turn signal indicator light
Left turn signal light
Positive tester probe → chocolate 1
Negative tester probe → ground
Right turn signal light
Positive tester probe →
dark green 2 or green 3
Negative tester probe → ground
" or " ".
NO
The turn signal/haz-
ard relay is faulty and
must be replaced.
SIGNALING SYSTEM
È
Ch
Ê
• Set the main switch to "ON".
• Set the turn signal switch to "
• Measure the voltage (DC 12 V) of choco-
late 1 and dark green 2 or green 3 at
the turn signal light connectors or meter
assembly coupler (wire harness end).
• Is the voltage within specification?
This circuit is OK.
8 - 43
ELEC
É
Dg Ch
Ch R/G Y G/W Y/L
Dg G/L R/W B/W Lg
G G/L R/W B/W Lg
Ch R/G Y G/W Y/L
YES
The wiring
from the turn signal
switch to the turn sig-
nal light connectors
or meter assembly
coupler is faulty and
must be repaired.
– +
G
" or " ".
NO
circuit