Linhai HY740STL 2018 Service Manual page 216

CHAPTER 8 ELECTRICAL
TROUBLESHOOTING
Procedure
Check:
4. 1. 1Fuse
5. 2. Battery
3. Main switch
4. 4WD/Diff lock switch
1.fuse
refer to "CHECKING SWITCHES"
section
2. Battery
Check the battery condition.
Refer to "BATTERY INSPECTION"
section in CHAPTER 3
3. Main switch
CHECK SWITCHES
4. 4WD/Diff lock switch
CHECK SWITCHES
5. controller
⚫ Disconnect the controller from the
wire harness.
⚫ Connect the controller input to the
battery.
Battery (+) lead→Brown/Black
M550 SERVICE MANUAL 16.0
5.controler
6. solenoid
7. Wiring connection
NO CONTINUITY
Replace the fuse
INCORRECT
Clean battery terminals
Recharge or replace the battery
NO CONTINUITY
Replace the main switch
NO CONTINUITY
Replace the switch
CHAPTER 7 ELECTRICAL CTRICAL PAGE 8- 34