PREVOST H3-41 Maintenance Manual page 334

SECTION 07: TRANSMISSION
FUNCTION
PID/SID
Sensor for
the pressure
of the supply
air (SEPrSA)
Sensor for
the pressure
of the supply
air (SEPrSA)
Sensor for
the pressure
of the supply
air (SEPrSA)
Sensor for
the speed on
PID161
the counter
shaft (SESC)
50
PA1621 Maintenance Manual All Series | January 2017
ERROR
FMI
J1587
Activate: 1.
Sensor signal is
in normal range
Data valid but 2. Pressure is
below below 5.0 [bar]
FMI1
operational Deactivate: 1.
range Sensor signal is
in normal range
2. Pressure is
above 5.0 [bar]
Activate: The
sensor signal is
Voltage
above normal
above normal
FMI3 range
or shorted
Deactivate: The
high
sensor signal is
in normal range
Activate: The
sensor signal is
Current below below normal
FMI5 normal or range
open circuit Deactivate: The
sensor signal is
in normal range
Activate: 1. The
sensor signal is
within normal
range and,
2. The counter
shaft speed
differs from both
the main shaft
speed (SESM)
and the vehicle
speed received
Data valid but from the vehicle
below ECU when the
FMI1
operational counter shaft is
range rotating
Deactivate: 1.
The sensor
signal is within
normal range
2. The counter
shaft speed and
the main shaft
speed are equal
when the
counter shaft is
rotating
CONDITION SYMPTOM
Yellow lamp is
sent
The symbol for
compressed air,
gearbox is sent
Gear changes
may be absent
Reduced clutch
performance
Yellow lamp is
sent
Yellow lamp is
sent
Yellow lamp is
sent
Reduced gear
change
performance
Gearbox brake
up shifts can not
be used
Slip point can
not be updated
which will give
reduced
performance at
starts
Start gear
engagement
only possible at
standstill and
when the vehicle
speed is high
enough to
synchronize the
main box with
the engine
COMMENT
Detailed condition to
activate:
The following conditions
must be fulfilled for a time of
2.0s in order to activate:
A gear (not neutral) is
engaged in the gearbox
The value of the input shaft
speed calculated from the
main shaft speed sensor
(SESM) is more than
300rpm, or the value of the
input shaft speed calculated
from the counter shaft
speed sensor (SESC) is
more than 300rpm
-The values of the input
shaft speed calculated from
the counter shaft speed
sensor (SESC) and the
main shaft speed sensor
(SESM) differ more than
50rpm
-The values of the input
shaft speed calculated from
the counter shaft speed
sensor (SESC) and the
vehicle speed received from
the vehicle ECU differ more
than 30rpm
-The values of the input
shaft speed calculated from
the main shaft speed sensor
(SESM) and the vehicle
speed received from the
vehicle ECU differ less than
30rpm
-There is no active fault on
any of
-The sensor for the main
shaft speed (SESM)
-The sensor for the position