Yamaha TDM850 1996 Service Manual page 304

2. Meter light does not come on.
1. Voltage
S Connect the pocket tester (20 V) to the bulb
socket coupler.
Tester (+) lead ! Blue terminal
Tester (–) lead ! Black terminal
S Turn the main switch to "ON".
S Turn the lights switch to "ON" or "PO" position.
S Check for voltage (12 V) on the "Blue" lead at
the bulb socket connector.
This circuit is good.
3. Taillight does not come on.
1. Voltage
S Connect the pocket tester (DC 20 V) to the
bulb socket connector.
Tester (+) lead ! Blue/Red terminal
Tester (–) lead ! Black terminal
S Turn the main switch to "ON".
S Turn the lights switch to "ON" or "PO" position.
S Check for voltage (12 V) on the "Blue/Red"
lead at the bulb socket connector.
This circuit is good.
1
2
MEETS
SPECIFICATION
1
2
MEETS
SPECIFICATION
LIGHTING SYSTEM
OUT OF SPECIFICATION
Wiring circuit from main switch to bulb socket
connector is faulty, repair.
OUT OF SPECIFICATION
Wiring circuit from main switch to bulb socket
connector is faulty, repair.
8-28
ELEC