DANA SPICER TM4 SUMO HP HV Powertrain, Troubleshooting Manual

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123
Service Codes
TT30
Description
The Troubleshooting Tree 30 indicates an error where
the defluxing current is not large enough when the
motor speed is at high speed level.
The cooling circuit issue may raise this SysFile ID.
A road test discriminates defective Motor and
defective MCU from cooling circuit issue.
Another road test discriminates the motor from the
MCU defectives.
Note: on this error type
This error type indicates that there is not enough
defluxing current at high speed. The point of over
speed can dynamically be reduced due to overheat of
the MCU or motor. If one of those components is
overheating, there might be not enough defluxing
current at high speed and this error will be raised.
Note : Refer to the TM4 ODIN technical guide for more
information.
Note : Refer to the TM4 Product installation guide for
more details on installation and deinstallation
procedure including safety warning considerations
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
0x320C
There is not enough
defluxing current at
high speed.
1.
MCU temperature too high for the motor
speed (verify cooling).
2.
Motor temperature too high for the motor
speed (verify cooling).
3.
Defective MCU.
4.
Defective motor.