ELECTRIC SYSTEM TMS800E SERVICE MANUAL
3-12
Published 01-29-2014, Control # 496-00
Diagnostic Lights
The console indicator lights are located in the carrier cab
console. Refer to Section 3 in the Operator’s Manual. The
lights are linked to various parts of the crane by the control
modules and notify the operator when a certain condition
occurs during the operation of the crane. When the ignition
key is turned to the ON position, all indicators on the top row
of the console will illuminate solid, all at the same time for
approximately two seconds as a diagnostic test. For any
lamp not illuminating during this period, following the steps in
the General Troubleshooting Section to identify and repair
the issue or replace the lamp if it is determined to be faulty.
Engine Stop Indicator Lamp - This lamp is the top portion of
the first indicator lamp. It will illuminate red when it is
commanded on by the engine ECM. This is accomplished by
a J1939 CAN message from the engine ECM to the crane's
master module. When this lamp is on, an engine fault
condition is active. The engine's fault code(s) may be
obtained by the Engine Stop Lamp and Warning Lamps as
described below or the superstructure cab's operator's
display. When this lamp is illuminated red after the two
second pre-test, the warning buzzer will be sounding.
Engine Amber Warning Indicator Lamp - This lamp is the top
portion of the second indicator lamp. It will illuminate amber
when it is commanded on by the engine ECM. This is
accomplished by a J1939 CAN message from the engine
ECM to the crane's master module. When this lamp is on, it
indicates there are critical operator messages and diagnostic
fault codes which require prompt operator attention. It is also
used to flash diagnostic fault codes. The engine's fault
code(s) may be obtained by the Engine Stop Lamp and
Warning Lamps as described below or the superstructure
cab's operator's display.
Engine Malfunction Indicator Lamp (MIL) - This lamp is only
installed on units with an ISX engine and will be located at
the top portion of the third indicator. It will illuminate amber
when it is commanded on by the engine ECM for any failure
that could affect tail pipe emissions. This is accomplished by
a J1939 CAN message from the engine ECM to the crane's
master module. When this lamp is on, an engine fault
condition is active. The engine's fault code(s) may be
obtained by the Engine Stop Lamp and Warning Lamps as
described below or the superstructure cab's operator's
display.
In addition to alerting the operator of system faults, the
warning light, in conjunction with the stop light, is used in the
diagnostic operation of the engine control system. The
diagnostic mode begins when the ignition and engine
diagnostic switch is on and the engine is not running. The
amber light flashes at the beginning of a fault code
sequence, the red light flashes the three-, four-, or five-digit
code for the active fault and the amber light flashes again to
separate the previous red light sequence from the next one.
Each code will be flashed twice before moving to the next
code. When all codes have been flashed, the sequence will
begin again. If no codes are present, both the warning and
stop lights will remain on.
The engine fault codes, while active, may also be obtained
by navigating to the service screen of the superstructure
cab's operator's display.
Crane system Module Off Line Indicator Lamp - This lamp is
the bottom portion of the first indicator lamp. It will illuminate
red any time one of the crane control modules or the engine
electronic control module (ECM) is not in communication
with the crane's master module. The service tool may be
connected to the Crane's USB diagnostic connector
mounted on the carrier cab power panel to determine which
module(s) is off line. Service tool components and software
may be obtained by contacting Manitowoc Crane Care.
Crane system Electrical System Diagnostic Lamp - This
lamp is the bottom portion of the second indicator lamp. It will
illuminate red when there is fault condition on one of the
crane module's outputs. The fault may be determined by
accessing the code from the superstructure cab's operator's
display or the service tool may be connected to the Crane's
USB diagnostic connector mounted on the carrier cab power
panel to determine output is faulty. Service tool components
and software may be obtained by contacting Manitowoc
Crane Care.
The bottom portion of the switch is the electrical system
diagnostic indicator. There are three conditions for this
indicator as follows:
a. On solid with buzzer sounding - There is an
interruption of communication over the main CAN
bus control line between the crane’s electronic
control modules. Proper crane operating condition
shall be restored as quickly as possible.
b. Flashing with buzzer sounding - An undesirable
condition with the crane’s joysticks has been
detected. Proper crane operating condition shall be
restored before performing any hydraulic function.
c. Flashing without buzzer - An undesirable
component or electrical system condition has
occurred.
Alternator Replacement
NOTE: On cranes with air conditioning it may be
necessary to move the compressor to gain access
to the alternator.
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