Tabla de contenido
Publicidad
FAILURE ANALYSIS
TROUBLE
Despite existing lens with the function icon on
the panel, the red LED indicator does not light up
when activated function key is pressed, neither is
the correspondent charge enabled. However, the
display shows "function disabled".
Function is enabled when key is pressed, visual
indicators (LCD and LED) say charge is enabled,
but it does not work.
Upper or auxiliary windshield wiper will not turn
off.
Display indicates a module is failing.
Display reading is "confuse" or illegible.
Control panel will not turn on.
System asks to turn ignition on, but it is already
on.
Vehicle starts, but charges will not turn off.
Bell will not ring when cord is pulled.
Bell rings even when buttons are not pressed and
the cord is not pulled.
Display shows battery problem.
Display indicated error, but charge is turning on.
112
POSSIBLE CAUSES
Function is not enabled.
Contact Marcolopolo's technical maintenance department.
Check wiring (electric whip), from the module connector to the charge – pay attention to how wires/cables are crimped to
connector terminals;
Connection problems; charge short-
Check cables/wires amendments quality, if they exist;
circuited; charge is "open";
Check whether the connector terminals are rusty;
Charge programming via keypad is
Check if charge is short-circuited, or if any bolts are short-circuiting the electric whip, etc. Check if the module and charge
incomplete or incorrect.
connectors are correctly attached;
Check if the current consumption of the charge is above what is specified on the module tag;
Check if the front module and windshield wiper connectors are correctly attached;
No return from the end of the windshield
Check if the windshield wiper course end return wire is well connected;
wiper course.
Check whether the connector terminals are rusty;
Check if the return wire is severed.
Make sure that the modules are fed;
Programming error. Serial
Make sure that module connectors are correctly attached;
communication wiring error.
Check if serial communication wiring is short-circuited or "open";
Check if the module connector terminals are rusty;
Reset control panel by checking which fuse fuses it, remove it and reconnect it after 10 seconds.
Display initiation failure.
User must remove feeding fuse from the panel and check if it is really off.
Make sure that the feeding fuse is correctly attached and in perfect conditions;
Feeding failure.
Check if wiring is short-circuited or "open";
Serial communication failure on module
entry +15.
Check if serial communication wiring is short-circuited or "open";
No ignition signal on system respective
Check whether the connector terminals are rusty;
entry.
Check if +15 input signal of the SCML system is on high level of tension (18 to 32Vdc), when ignition is on.
Check if serial communication wiring is short-circuited or "open";
No ignition signal on module.
Check whether the connector terminals are rusty;
Check if +50 input signal of the SCML system is on high level of tension (18 to 32Vdc), when ignition is on.
Check if serial communication wiring is short-circuited or "open";
No bell signal module.
Check whether the connector terminals are rusty;
Check if the input signal of the SCML system cord is on low level of tension (close to 0Vdc) when is on.
Button panel cables short-circuited to
Check the button panel connections. If the wiring is short-circuited to the bus body (through a bolt or wires touching the
bus body.
metallic parts of the bus(, this kind of trouble may happen.
Battery is discharged or with elevated
Make sure that the battery tension is between 20 and 32 Volts.
tension.
Low output current consumption.
Increase charge inserting a 21W lamp to test if the error indication disappears.
ANALYSIS
Publicidad
Tabla de contenido
