2-19
BEFORE DRIVING
74LH0-74E TROUBLESHOOTING
SYMPTOMS PROBABLE CAUSES REMEDIES
Transmitter function (Unlock/Lock/car
locator function) not working 1. Battery of the transmitter is weak.
2. Transmitter is exposed to water or it is
wet.
3. D/L or Dome fuse for controller is blown
in the vehicle.
4. In case if any door is open or door
sensor is shorted with the body ground,
remote will not activate the central
locking/ alarm system.1. Check the battery.
2. Dry the transmitter and check it.
3. Check and replace the D/L or Dome
fuse.
4. Check if all doors are properly closed
and door switch functioning is O.K.
Operation distance of the transmitter is
less than 20m but still transmitter (Unlock/
Lock/car locator) is not working 1. Battery of the transmitter is weak.
2. Strong RF interference. (e.g. Radio
Towers, High Voltage Transmission line
near by)1. Check the battery.
2. Drive the vehicle away from the
particular spot and re-test the control
distance.
It is difficult to activate or deactivate the
system in certain area using the
transmitter. 1. The strong interference caused by
excessive RF activity in a particular
area1. The interference is temporary and only
while the vehicle is in that area.
Alarm is not triggered even if any door(s)/
engine hood/trunk/tailgate opened in arm
stage.1. The contact point of the door(s), front
bonnet or rear boot switch is faulty.
2. The connection of the door(s), front
bonnet or rear boot switch is loose.1. Replace the defective Switch.
2. Make proper connection.
Siren does not sound when alarm is
triggered. 1. The connection of the siren wire is
loose.
2. Siren is faulty. 1. Make proper connection.
2. Change the siren.
Seat Belts and Child Restraint Systems: 3
