Model: EVK100 (light duty)
Insufficient power, occasionally storage battery light on during driving.
Possible reasons: bad charging of the DCDC; bad contact of the low-voltage line; low-voltage battery fault.
Read the VCU DTC. Shown as follows:
Possible reasons in the manual:
Loose BMS plug
Bad contact of the high voltage cable harness
BMS Self-issue
Voltage checkout:
Contact the authorized technician if the above items are not found after a close inspection:
Measure the DDCDC, shows 12.5V of the storage battery；
Start up the vehicle, shows 13.8V at the beginning; after 4 minutes, extra 0.4v increases; after turned off, 0.4v short within 4 minutes.
Replace with a new storage, still the same issue.
The issues occurred during bumpy roads. So inspect the low-voltage supply again.
The positive terminal of the power switch is loose;
The issue is no more after fastening the part.
