DANA SPICER PACCAR 220ev, Troubleshooting Manual

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124
Troubleshooting
F0036 - High Voltage System Fault
Error Description Possible Causes Possible Solutions
The VCU has detected a HV
system isolation fault.
1) ESS fault. 1) Troubleshoot specific error.
The VCU monitors voltage and current and raises an
error if the calculated isolation resistance falls below
a certain threshold. Error F0036 is raised when an
isolation resistance of less than 500 Ω/V is detected
while in driving mode.
The BMS independently monitors isolation
resistance and will raise error F0026 (BMS fault
reason 40, 41, 42, or 43) if there is a HV system
isolation fault condition detected. VCU and BMS
fault code may both appear for the same problem.
Warning: Loss of HV system isolation can
pose an extreme hazard and may result in
high voltage being present in parts of the
vehicle that are not normally energized. Use
extreme caution and report all instances of
this error to Dana.
HMI displays or logs
Fault code F0036
Is F0026 BMS 41
also present?
Yes
No
Refer to error F0026 BMS 41
troubleshooting tree.
Contact Dana for further
investigation.