660 / 1428
648
ELECTRICAL
GENERAL SYMPTOMS AND DIAGNOSTICS
CONDITION
POSSIBLE CAUSES
CORRECTION/REFERENCE ITEM
1. HEAD LAMP
Single head lamp (RH or LH)
1) Grounding point loose
Tighten grounding properly
not working
2) Head Lamp connector
Fix connector properly
(3 pole) loose
3) Bulb Fused.
Replace bulb
Single head lamp (RH or LH)
1) High / Low beam filament in Replace bulb
not working in
the bulb blown
high/low beam
2) High/Low beam terminal
Insert the terminal into the connector
properly
(pink/blue wire) has come
out off the connector
Both lamps not working in
1) Head lamp high / low beam Fix the fuse in the base properly. If
high / low beam
fuse (20A) in fuse box
blown, check for short in the circuit
loose/blown
and then replace the fuse
2) Connectors at combi-switch Fix the connectors properly
loose/10 pole connector
from main W/H to cockpit
W/H loose
3) High / Low beam switch in Replace combi-switch
combi-switch faulty
High beam does not come
1) Connector loose at combi
Fix the connector properly
on when flash switch is activated
switch
2) Flash switch faulty
Replace combi-switch
2. FRONT PARKING LAMPS
Single parking lamp
1) Connector (2 pole) loose Fix the connector properly
not working
2) Bulb loose/fused
Fix the bulb properly. Replace
bulb if blown
3) Grounding point loose
Tighten the grounding properly
4) Parking lamp LH/RH fuse Fix the fuse in the base firmly. If blown,
(10A) in cabin fuse box
check for short in the circuit and then
loose/blown
replace the fuse
5) Battery supply not reaching Check the continuity from battery to
parking lamp LH/RH fuse the lamps through the combi-switch,
input
Front W/H and Floor W/H connectors
and rectify the discontinuity in the
circuit.
Both parking lamps not working 1) Combi-switch connectors Fix the connectors properly
loose/20 pole connector
from Front W/H to Cabin
W/H loose
2) Combi switch faulty
Replace combi-switch