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10. External lighting system
154
3. Function description – Follow Me Home
Function description of external lighting
External fault protection:
External turn
signal lamp
If any turn signal lamp fails while other turn signal lamps work normally, the
indicator lamp will flash at double frequency of CAN signal to remind the user of
the failure of turn signal lamp in question.
When the lamp output PIN is shorted to GND, drive chip will automatically cut off
the output to protect electric circuit.
The external turn signal supports following fault codes:
DTC
DTC parameter
Description
Type of fault
HIGH
MIDDLE
LOW
B1001-11
90
01
11
Left turn signal
lamp circuit
Shorted to GND
B1001-13
90
01
13
Output open circuit
B1001-19
90
01
19
Exceedance of output limit
B1002-11
90
02
11
Right turn signal
lamp circuit
GND
B1002-13
90
02
13
Shorted to GND
B1002-19
90
02
19
Exceedance of output limit
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