Lighting System - Nilfisk RS 1301 Betriebsanleitung, Originalanleitung

Problem
ENGINE GLOW PLUG SYSTEM
The glow plug warning light does not turn
on when the ignition switch is turned on.
The glow plug warning light is always on
once the ignition switch is turned on.
Choke system at very low temperature.

LIGHTING SYSTEM

The running lights do not turn on.
The low beams do not turn on.
At normal ambient temperature, the glow plug warning light should turn on for several seconds.
Possible disconnection of the dashboard warning light.
The warning light does not turn on during the check or when a positive is applied to the display
reference pin.
There is no voltage in this pin.
Check the integrity of the control unit warning light output. When the ignition switch restarts, the light
always turns on for several seconds, making an integrity check relatively easy.
The signal lasts for about 5 - 8 seconds at ambient temperature of around 20 °C.
The signal never occurs in the control unit output.
The fuse F13 is intact.
There is no ground potential on the control unit.
The ground potential is properly connected.
Very low ambient temperature or a fault in the warning light output of the glow plug control unit.
The insertion time of the glow plugs is greater than 180 seconds.
At very low temperatures, it is diffi cult to start the engine and the engine speed is not smooth until the
engine is cold.
There is voltage on pin 99/2.
There is no voltage on pin 99/2.
The K20 relay coil is intact.
There is no negative reference on pin 99/3, by forcing the reference the relay K20 is charged.
There is negative reference on pin 99/3 but K20 relay is not charged.
The fuse F13 is intact.
There is negative reference on pin 99/3, the K20 relay is charged, but there is no solenoid valve
output.
The ignition switch is off.
The ignition switch is turned on (the fl ashing light is working), the combination switch is turned on, but
the lights do not turn on.
The fuse F29 is intact.
The combination switch connections are correct and the combination switch is switching over the
commands properly.
The K17 relay does not activate, but there is activation signal from the combination switch on pin 86.
The control signal for the lights is not being passed on by the combination switch.
Relay K17 is active and there is voltage on pin 87.
The licence plate light is on, but the running light indicator light on the dashboard is off.
The engine is not running.
The engine is running, the running lights are on and the control on the combination switch is on, but
the low beams are still off.
Relay K19 is not receiving positive activation (measured on pin 23/7).
Relay K19 is not receiving positive activation (measured on pin 15/8).
There is positive activation from the combination switch on pin 86 of relay K19.
Relay K19 is receiving potential from the electronic board but is not activated.
Relay K19 is not receiving negative potential from the electronic board.
Relay K19 is operating properly.
RS 1301
USER MANUAL
Possible cause
33018310(3)2010-01 A
ENGLISH
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