DANA TM4 SUMO MD MV, Troubleshooting Manual

Page: 57 / 182

57
Service Codes
TT06: Abnormal Battery Current Condition
Description
The troubleshooting tree 06 describes an error where
the DC battery current exceeded the allowed
parameters.
This error is likely the result of the MCU being set to
Standby or failure while the vehicle was at a high
speed.
The check of the Specific SysFile ID occurring at the
same time of another specific SysFile ID leads to
determine if the MCU is defective.
The MCU itself may be defective.
Note : Refer to the TM4 Product installation guide for
more details on installation and deinstallation
procedure including safety warning considerations.
Note : Refer to the Application Note High-speed fault
management document.
Note : Any SysFile ID raised by the system while the
vehicle is beyond the "unsafe speed" will activate the
phase short circuit mechanism through the MCU
power switch modules. This mechanism is activated
to maintain the DC bus under the high voltage
maximum limit. At the time the motor phases are short
circuited through the MCU power modules, the
battery current will temporarily exceed the threshold
limit upon failure and raise this SysFile ID error. This
error can therefore be ignored following the 0x3113
warning (TT26) "Back EMF Motor reduction
mechanism activated (phases are short-circuited)".
Other error(s) must be investigated.
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 0x0319
DC battery current
exceeded allowed
parameters
1.
0x3113 error occurred at the same time
that may lead to a defective MCU
2.
0x050B error occurred at the same time
that may lead to an error at the VCU/ECU
level.
3.
Another SysFile occurred at the same
time.
4.
Defective MCU.