Yamaha YW50P Service Manual page 196

S,O.A,S*S*EM IE'Ecl I
Y P 8 0 6 0 2 2
2. If t h e b r a k e l i g h t f a i l s t o c o m e o n :
J l. Bulb and bulb socket
Refer to "CHECKING SWITCHES" section.
~ 7 CONTINUITY
J 2. Brake switch (Front/Rear)
Refer to "CHECKING SWI SWITCHES" section.
, ~ CONTINUITY
NO CONTINUITY
J Replace the bulb and/or bulb socket.
NO CONTINUITY
I 1
J Replace brake switch.
3. Voltage
• Connect the pocket tester (DC20V) to the
bulb socket connector.
Tester (+) lead~>Green/Yellow terminal (~
Tester (-) lead~>Black terminal (~
- -
/ % '
• T u r n t h e m a i n s w i t c h t o o n .
• T h e b r a k e l e v e r is p u l l e d in.
• C h e c k f o r v o l t a g e (12V) o f t h e " G r e e n / Y e l -
l o w " l e a d o n t h e b u l b s o c k e t c o n n e c t o r .
~ MEETS
SPECIFICATION
J This circuit is not faulty.
OUT OF SPECIFICATION
4. Wiring connection
Wiring circuit from the main switch to the
bulb socket connector is faulty. Repair.
Refer to "SIGNAL SYSTEM WIRING DIA-
GRAM
"
7-37