DANA SPICER TM4 SUMO HP HV Powertrain, Troubleshooting Manual

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167
Service Codes
STT02: Verify Cooling Circuit Integrity
Description
The sub Troubleshooting Tree
“Verify Cooling Circuit
Integrity” deals with the issue where the cooling
circuit of the motor and the MCU.
Note : Refer to integration vehicle installation manual.
Note : Refer to the TM4 Product installation guide for
more details on cooling agent mixture.
Note : On cooling agent
Wrong cooling agent can create dust / rust in the
cooling circuit.
To correctly diagnose the faulty system, connect the
Diagnostic Tool (see «Diagnostics» section for test
equipment and descriptions) and follow the
procedure of Troubleshooting Tree below.
See “Safety Warnings” and “Troubleshooting Tips”
sections
for general guidelines on system
diagnostics.
Related Process
The STT02 call the following process:
•
Appendix 5: Cooling agent precautions
Related TT External input Possible Causes
TT21 TT22 TT23 TT24
TT25 TT30
None.
1. The lack of coolant, the air within the motor an MCU lead to the
system overheat.
2. A slowdown cooling flow in the cooling circuit leads to the system
overheat.
3. The cooling agent mixture is not as specified within the product
installation guide.
4. There is an issue with the radiator.