BYD S1 EV User Manual page 49

EPS fault warning indicator
EPS is equipped with a motor to reduce the force required to turn the steering wheel.
Tip
● When turning the steering wheel, the sound of the motor operation ("Buzzing") will
be sent. The does not mean a fault.
In the following two cases, the steering system warning indicator is not turned on,
but the steering feel is heavy, which does not mean a fault:
■
When turning the steering wheel for a long time under parking status
●
If the steering wheel is turned for a long time under parking status, the
performance of EPS will be reduced to prevent a heavy operation of the steering
wheel due to the system overheating. In this case, do not turn the steering wheel
frequently, must park the car and turn the power supply to "OFF" position, to
return it to normal operation within 10min.
■
When the battery is low-voltage
●
EPS minimum operation voltage is 9V. When the battery voltage is below 9V,
EPS will not provide the steering assist. In this case, must check the battery
conditions and charge or replace the battery if necessary.
● If the power supply is returned to "OFF" position, EPS system may not provide the
steering assist; therefore, do not return the power supply to "OFF" position during
driving process. If the power supply is returned to "OFF" position during driving
process, please hold the steering wheel, park the car in a safe place and contact
BYD Auto Authorized Service Station for inspection immediately.
Warning
●
If EPS fault warning indicator is turned on, it is recommended to park the car in a
safe place and contact BYD Auto Authorized Service Station for inspection
immediately. In this case, the steering operation will be very heavy and the steering
wheel should be held during driving process.
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