voltage. Check battery parameters.
1）Check battery voltage；
2）Check battery voltage；
3）Check if main contactor is connected.
1）Restart the key；
2）Check the load and harness of controller at 5V and
12V port.
BMS temperature protection
Check the lithium battery temperature
Check the lithium battery temperature
BMS monocell over-discharge
Need to charge or check CAN communication harness
of lithium battery
Check the voltage of single lithium battery
BMS overcurrent protection
Check the discharge current of lithium battery
Check whether the lithium battery under the charging
state
BMS current-limiting protection
Check the discharge current of lithium battery
Check the discharge current of lithium battery
BMS communication failure
Check CAN communication harness of lithium battery
Instrument CAN communication
failure
Check CAN communication wiring harness and data
between instrument and controller
Use the correct authentication information
Remote terminal communication
is down
Check the CAN communication line between the
control system and IDT module
4.6.3 Fault diagnosis of ZAPI
Table 4-4 Fault list of Main pump, main traction
ACE3 traction master alarms （node 2.0）and ACE3 pump master alarms
（node 5.0）
Cause:
This is a safety related test. It is a self-diagnosis test that involves the logic between
master and supervisor microcontrollers
Troubleshooting:
This alarm could be caused by a CAN bus malfunctioning, which blinds
master-supervisor communication
Cause
A hardware problem in the logic board due to high currents (overload). An
overcurrent condition is triggered even if the power bridge is not driven.
Troubleshooting
The failure lies in the controller hardware. Replace the controller.
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