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Page Title:
Usage of Transmission Style Switches |
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 387
TM 9-2320-312-24-2
Troubleshooting Section
"Automatic Option 1"
The service brake pedal position switches, the
neutral switch and the clutch switch are used in the
"Automatic Option 2"
cruise control mode, the PTO mode, the fast idle
mode, and the idle mode in order to discontinue
"Automatic Option 3"
the cruise operation, the PTO operation, the fast
idle mode, or the idle operation. The capability
"Automatic Option 4"
to override the idle shutdown timer is determined
by the "Allow Idle Shutdown Override" parameter
"AT/MT/HT Option 1"
setting. The "Allow Idle Shutdown Override" is a
Customer Parameter.
"AT/MT/HT Option 2"
Usage of Transmission Style Switches
"AT/MT/HT Option 3"
The "Transmission Style" parameter determines
"AT/MT/HT Option 4"
the switches that will be used. The following
switches can be used with being dependent on the
parameter setting:
A service brake pedal position (switch 1) is required
for all configurations. The service brake pedal
Clutch pedal position
position (switch 1) connects to the ECM through
connector P1 terminal 45. The service brake pedal
Neutral
position (switch 2) connects to the ECM through
connector P1 terminal 64. The clutch pedal position
Service brake pedal position (switch 1)
switch connects to the ECM through connector P1
terminal 22. The neutral switch connects to the ECM
Service brake pedal position (switch 2)
through connector P1 terminal 62.
Some engines that were built before JULY 1999
Refer to Table 194 for additional information.
may have a Basic ECM. The Basic ECM was used
Table 194
only on General Motors chassis. Other chassis used
engines that were built with a Full Feature ECM.
Switch Usage.
Basic ECM software does not have the parameter
Setting For
Service
Service
Transmission
for "Transmission Style". For these systems, a
Brake
Brake
Style
jumper wire must be installed between the clutch
Clutch
Neutral
Switch
Switch
Parameter
switch input and the sensor common when an
1
2
automatic transmission is installed. When the jumper
wire is installed, the "Clutch Switch" status will
"Manual"
X
X
always indicate "OFF". Engines that were built after
"Automatic
JULY 1999 use only one type of ECM that can be
X
Option 1"
configured for "Basic" or "Full Feature" operation.
A new parameter was added in order to provide
"Automatic
X
X
Option 2"
this flexibility. The "Truck Manufacturer" parameter
was added in order to allow the configuration of the
"Automatic
X
X
X
"GM Basic" operation or the "Other Full Feature"
Option 3"
operation. This parameter is programmed at
"Automatic
Caterpillar when the engine is built. The parameter
X
X
Option 4"
for "Transmission Style" is not available for engines
that have software that is dated prior to SEP00
"AT/MT/HT
X
and the parameter for "Truck Manufacturer" is
Option 1"
programmed to "GM". SEP00 and newer engines
"AT/MT/HT
that are programmed to "GM" use the "Transmission
X
X
Option 2"
Style" parameter. The factory default for the "GM"
setting is the "Universal" option. The "Universal"
"AT/MT/HT
X
X
X
option provides identical features as the "Basic"
Option 3"
system that is described above. If the "Transmission
"AT/MT/HT
Style" parameter is programmed to the "Universal"
X
X
Option 4"
option, a jumper wire must be installed between the
"Universal
clutch switch input and the sensor common when an
X
X
X
Option"
automatic transmission is installed. Otherwise, the
"Transmission Style" parameter can be programmed
to match the specific arrangement of the vehicle.
If the "Transmission Style" parameter is programmed
to one of the following options, the input for the
Clutch Pedal Position Switch is not used.
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