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TM 9-2320-312-24-2
Troubleshooting Section
4. Connect the electronic service tool to the cab
If no smoke is present, there may be a problem
data link connector and check for event code
with the fuel quality or there may be a problem
164-11 injection actuation pressure system fault
with the fuel supply.
. If an 164-11 event code has been logged
recently, refer to Troubleshooting, "Injection
2. Check the fuel quality. Refer to the Truck
Actuation Pressure -Test".
Performance and Driveability Diagnostic Guide,
LEBT3477.
i01857468
3. Check the fuel pressure. Refer to Testing and
Low Power/Poor or No
Adjusting, "Fuel System Pressure - Test".
Response to Throttle
4. Ensure that the fuel system has been primed.
Refer to Testing and Adjusting, "Fuel System -
SMCS Code: 7569
Prime".
5. Check for fuel supply lines that are restricted.
Probable Causes
6. Check the fuel filters.
The probable root causes are listed in order below:
7. If the temperature is below 0 C (32 F), check
Customer Specified Parameters (normal
for solidified fuel (wax).
operation)
8. Check for air in the fuel system. Refer to Testing
Cold Mode operation
and Adjusting, "Air in Fuel - Test".
Torque limit switch
Torque Limit Switch
Electronic system
1. Connect the electronic service tool to the cab
Vehicle speed signal
data link connector.
Power train data link
2. Check the setting for the Customer Parameter
for the "Torque Limit".
Fuel supply
If the "Torque Limit" is programmed below
Air Inlet and exhaust system
2712 Nm (2000 lb ft), check the status screen
for the torque limit switch. Ensure that the status
Malfunction of an individual cylinder
screen indicates that the torque limit switch is
off. If the status of the torque limit switch is
Low injection actuation pressure
on and a "Torque Limit" is programmed, the
system is operating correctly. If the switch that is
connected to this signal input is not switching on
Recommended Actions
and switching off, refer to Troubleshooting, "PTO
Switch Circuit - Test".
Perform the following tests in order:
Low Injection Actuation Pressure
Customer Specified Parameters
1. Check the engine oil level. Engine oil is used to
1. Check Customer Specified Parameters.
activate the high pressure hydraulic pump.
2. Verify that the complaint is not normal operation
2. Ensure that the engine oil meets the
(programmed parameter).
recommendations of the engine manufacturer.
Refer to Operation and Maintenance Manual for
3. Connect the electronic service tool to the cab
further details.
data link connector.
3. Crank the engine and monitor the injection
4. Check the following parameters:
actuation pressure and the output of the injection
actuation pressure control valve. The high
"Rating Number"
pressure oil system is operating properly if the
pressure output is a minimum of 6 MPa (870 psi).
"Top Engine Limit"

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