WORKSHOP MANUAL
TC 108 SD - TC 118 SD
CHAPTER
REVISION
FROM ...
PAGE
7.1
0
2018
3 of 3
TROUBLESHOOTING OF THE ELECTRICAL
SYSTEM
IMPORTANT
Faulty electronic cards must always be replaced without trying to repair them or re place single components.
PROBLEM
CAUSE
REMEDY
9. The battery light is blinking
Recharge overvoltage
Check the recharge circuit
Battery insufficiently charged at startup
Recharge the battery
10. Abnormal, uncontrolled lighting up of
the LEDs or irregular card operation
Faulty or wet electronic card
Check and dry with low pressure tepid air (hair-dryer)
Bad earthing of the electronic card
Check and put right
11. The 10 A fuse cuts in
The safety devices have cut in or are faulty
Check the operation of the microswitch operation and the rel-
evant wiring
Accidental detaching of an electrical wire
Check all wiring
Starting of engine not permitted
After checking that the conditions are met, check all the micros-
witches and the relative wiring.
12. The 10 A fuse cuts in
Short circuit or overload on the power side of the card
(ignition block, starter relay, headlamps and recharger
connector)
Find and replace the defective user
Short circuit or damage to the electronic card protec-
tion (power side)
Replace the panel/circuit board group with one that is known to
work; if the problem does not reoccur replace the faulty group
definitively
13. The 25 A fuse cuts in
Faults in the battery charging circuit
Replace fuse (25 A) and check the recharge circuit