Lifan 620 Maintenance Manual page 263

II. Reverse radar system terminal:
Testing terminal Wire color
BCM (1-8) - body G/N
BCM (1-19) - body W/B
BCM (2-18) - body R/Y
BCM (2-20) - body B
BCM (2-21) - body G
BCM (2-22) - body Y
BCM (2-23) - body R/W
BCM (2-24) - body Y/R
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See Fig. 4-111 and Table 4-22.
Fig. 4-111
Table 4-22
Terminal description
Input reverse signal
Input reverse LIN signal to
instrument
Output BCM fault warning
to instrument cluster
indicator
Ultrasonic probe power
negative
Ultrasonic probe power
positive
Ultrasonic probe 1 signal
wire
Ultrasonic probe 2 signal
wire
Ultrasonic probe 3 signal
wire
262
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Test condition
Turn ignition switch to ON,
take reverse gear, always
Data transmission
When reverse radar warns
barriers
Always
Always
When probe works after
BCM sends out starting
signal
When probe works after
BCM sends out starting
signal
When probe works after
BCM sends out starting
signal
Standard
value
10～14V
10~14V
Pulse signal
generated
10~14V
Less than 1Ω
10~14V
Pulse signal
generated
Pulse signal
generated
Pulse signal
generated