Hisun HS700UTV-4 Maintenance Handbook page 342

6. If the differential gear lock indicator light fails to come on:
(1). Bulb and bulb socket
• Check the bulb and bulb socket for continuity.
(2). Differential gear lock indicator light relay
• Remove the differential gear lock indicator light
relay from the wire harness.
• Connect the pocket tester (Ω × 1) and the
battery (12 V) to the differential gear lock
indicator light relay terminals.
• Check the differential gear lock indicator light
relay for continuity as follows.
Tester (+) lead Black/White
terminal ①
Tester(–)lead Black
Terminal ②
Battery(+)terminal
terminal ③
Battery (–)terminal
Terminal ④
Tester(–)lead Black/ White
terminal ①
Tester(+) lead Black
terminal ②
(3). Four-wheel drive switch
Refer to "CHECKING THE SWITCH".
ELECTRICAL COMPONENTS
CONTINUITY
Continuity
Brown
Black/red
No
continuity
CONTINUITY
CONTINUITY
NO CONTINUITY
Replace the bulb and/or bulb socket.
NO CONTINUITY
Replace the differential gear lock indicator light
relay.
NO CONTINUITY
Replace the gear motor.
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