Service manual

ELEC
SIGNALING SYSTEM
8-35
ss
WARNING
• Handle the thermo switch with special
care.
• Never subject the thermo switch to
strong shocks. If the thermo switch is
dropped, replace it.
Thermo switch
16 Nm (1.6m • kg)
Three bond sealock
®
10
• Does the thermo switch operate properly as
described above?
3. Voltage
• Connect the pocket tester (DC 20 V) to the
meter coupler (wire harness side) as
shown.
Positive tester probe

brown 
Negative tester probe

green/red 
• Set the main switch to “ON”.
• Measure the voltage (DC 12 V) of brown 
and green/red  at the meter coupler.
• Is the voltage within specification?
Replace the thermo
switch
The wiring circuit
from the main
switch to the meter
coupler is faulty
and must be
repaired.
LY
Br
Ch Dg
RB
Gy GR
BY Sb G LG
Dg Ch L GR Y Gy
RBrBBYSbG
RY
RYLG
Br
G
R
/
The circuit is OK.
YES
NO
YES
NO

