DANA SPICER TM4 SUMO HP HV Powertrain, Руководство по устранению неисправностей

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108
Service Codes
TT23
Description
The Troubleshooting Tree 23 indicates an error where
an internal temperature sensor had a reading which
was greater than the limit and causes MCU defective
state.
Note : Refer to the MCU installation guide for more
details on installation and deinstallation procedure
including safety warning considerations.
Note : There is air in the cooling circuit. The air must
be let out of the cooling circuit.
Note : The flow of the cooling liquid is too low to cool
the motor. Refer to the cooling system
troubleshooting Guide.
Note : The temperature of the liquid temperature is too
high to cool the motor. The system must turn Ignition
off, and the coolant mixture must be replaced. Refer to
the cooling system Service Manual.
Note : The mixture of the cooling liquid was done badly,
which does not let the coolant cool the motor. Replace
the mixture of cooling liquid. Refer to the cooling
system Service Manual.
Note : The DC cable crimping on one or more of the DC
connection (lug or POC). Replace the cable.
To correctly diagnose the faulty system, connect the
Diagnostic Tool (see «Diagnostics» section for test
equipment
and descriptions) and follow the
Troubleshooting Tree procedure below.
See “Safety Warnings” and “Troubleshooting Tips”
sections for general guidelines on system diagnostics.
System Mode Referred by SysFile ID Condition Possible Causes
Operational
0x3112
The internal EMI
section temperature
measurement went
over the limit and
caused the system to
go in a fault state.
1.
Air in the cooling circuit.
2.
Cooling liquid flow too low or nil
(cooling pump issue).
3.
Cooling liquid temperature too high.
4.
Wrong cooling agent mixture used
–
(can create dust/rust in the cooling
circuit).
5.
DC loose contact point(s)
connection(s) on MCU.
6.
Wrong DC cable crimping.
7.
Defective MCU.