Jianshe JS125-6B Maintenance Manual page 195

2. Voltage
Connect the pocket tester (DC20V) to the bulb socket
coupler
Tester lead Yellow terminal
Tester lead Black terminal
Turn the main switch to
Turn the lights switch to
Check the voltage (12V) of the
the bulb socket coupler
This circuit is not faulty.
3. If the tail lamp fails to come on
1.Bulb and bulb socket
Check the bulb and the bulb socket for continuity.
2. Voltage
Connect the pocket tester (DC20V) to the bulb socket
coupler
Tester lead Blue terminal
Tester lead Black terminal
Turn the main switch to
Turn the lights witch to
Check the voltage (12V) of blue lead on the bulb
socket coupler.
this circuit is not faulty
ON
ON
brown lead on
Meets specification
(12V)
continuity
ON
ON
Meets specification
(12V)
CABLE AND ELECTRIC APPLIANCE SYSTEM
The wiring circuit from the main switch to the bulb
socket coupler is faulty, repair
Replace bulb and / or bulb socket
The wiring circuit form the main switch to the bulb
socket coupler is faulty ,repair.
185
Out of specification
No Continuity
Out of specification