Page 252 - Workshop Manual - Tunland (2017)

04-114 DIAGNOSTICS - REVERSE RADAR SYSTEM

SYSTEM SPECIFICATION

1 . Summary
After the objects are emitted by ultrasonic wave, a set of reflected wave will return to
reverse radar probe, and radar controller uses the interval time between emission
wave and reflected wave to measure the distance, so as to remind the driver that there
04
are obstacles at the rear.
2 . Components functions

Components Function
• Check the distance between the vehicle
Reverse Radar Probe
and the obstacles.

• According to the distance of the obstacles,
Intermittent buzzer
buzz to inform the driver.

• Judge the rough distance between the
Reverse Radar Controller vehicles and the obstacles based on the
signals from ultrasonic sensor.

• Send the reverse signal to reverse radar
Switch, reverse lamp
probe.

3 . Self-check functions of reverse radar probe

(a) Turn the ignition switch to “ON”.
(b) Transfer to reverse gear and reverse radar probe self checks.
• If the function of reverse radar probe is normal, then the buzzer will buzz once
and the buzzing time is 0.5 seconds.
• If the function of one of the reverse radar probes are abnormal, then the buzzer
will buzz two times and the buzzing time is 0.5 seconds with interval of 0.5
seconds.
• If the function of two of the reverse radar probes are abnormal, then the buzzer
will buzz three times and the buzzing time is 0.5 seconds with interval of 0.5
seconds.
4 . The check scope and the segmentation of reverse radar probe

(a) The check scope and the segmentation of reverse radar probe on both sides

5 . The distance of the obstacles, the response frequency of the buzzer and buzz
methods