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44
Service Codes
Is the measured
voltage < 7.5 V?
Yes
Investigate the 12 V / 24 V board
net for :
- Defective DCDC system,
- Defective auxiliary batteries.
Is there evidence
DCDC or Auxiliary batteries are
causing
the undervoltage?
Yes
No
Refer to the system
troubleshooting Guide to
solve problems.
Refer to the
Verify Connector
Integrity
Subtree (STT01).
Is there any evidence of an
integrity loss on the VMU/ECU
interface MCU connector?
Yes
Defective MCU.
Replace MCU.
No
Complete
Inspect the VMU/ECU
interface connector.
Switch OFF the
auxiliary batteries
switch.
Switch OFF the
auxiliary batteries
switch.
B
Refer to the Dana TM4
Product installation guide
for more details on
installation and
deinstallation procedure
including safety warning
considerations.
C
Summary of Contents for SPICER TM4 SUMO HP HV Powertrain
Page 1: ...1 Dana TM4 SUMO HP HV Powertrain Troubleshooting Guide SMTS 0603 March 2022 ...
Page 9: ...9 General Information Dana TM4 Motor and MCU Components Example Dana TM4 Motor Dana TM4 MCU ...
Page 14: ...14 General Information Motor connector head Identification Dana TM4 MCU A3 Dana TM4 Motor ...
Page 36: ...36 Service Codes ...
Page 38: ...38 Service Codes ...
Page 41: ...41 Service Codes Connector type 2 pinout Connector type 1 pinout ...
Page 47: ...47 Service Codes Connector type 2 pinout Connector type 1 pinout ...
Page 51: ...51 Service Codes Motor internal resistance measurement table ...
Page 53: ...53 Service Codes ...
Page 54: ...54 Service Codes ...
Page 55: ...55 Service Codes ...
Page 57: ...57 Service Codes ...
Page 62: ...62 Service Codes Connector type 2 pinout ...
Page 63: ...63 Service Codes ...
Page 64: ...64 Service Codes ...
Page 67: ...67 Service Codes Connector type 2 pinout ...
Page 68: ...68 Service Codes ...
Page 69: ...69 Service Codes ...
Page 71: ...71 Service Codes ...
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Page 125: ...125 Service Codes References ...
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