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11-472
Reverse Radar
11.14.6.5 The Sensor Detecting Ability May Drop Because
1. The snow or water falls on the sensor probe.
2. Very hot or cold days.
3. There is an obstacle, and its diameter is less than 14 cm (5.5 in) and its length is less than 1 m (39 in).
11.14.6.6 The False Alarm May Be Triggered Because
1. On an uneven road, cobblestone pavement and lawn.
2. The system is close to other ultrasonic sources such as vehicles horn, motorcycle engine noise, commercial vehicle air brake
etc.
3. Heavy rain and water splashing.
4. Close to a radio equipment such as a Walkman and so on.
5. The sensor is covered by snow etc.
11.14.6.7 The System Can Not Detect The Following Objects
1. Objects with sharp corners and ropes.
2. Objects that can absorb ultrasonic, such as cotton, snow and sponges.
11.14.6.8 Possible Scenarios
1. According to vehicle speed and the obstacles shape, alarm levels may not be continuous.
2. When the sensor height and rear bumper changes, or the vehicle towed objects are in the detecting area, the system may send
a false alarm.
3. The system may not detect objects within 30 cm (11.8 in).
4. When the sensor error is detected, check whether the sensor surface is covered by dust, snow, water, etc.. If it is the case,
remove the dust, snow, water, etc from the sensor surface.
5. Avoid sensor surface being squeezed, impacted and scratched and so on.
6. If a vehicle is loaned to others to use, please notify the user of these Notices.
11.14.6.9 Fault Symptom List
Symptoms
System is unable to self-test (buzzer does
not ring)
Gear at R, buzzer rings
Self Test Right Corner Sensor Malfunction
EC718/EC718RV EC715/EC715RV 10/2009
Suspected Parts
1. Reverse Radar Control Module Power
Supply Circuit
2. Harness and Connectors
3. Instrument Cluster
1. Harness and Connectors
2. Reverse Radar Control Module
3. Harness and Connectors
4. Reverse Radar Control Module
1. Sensor
2. Harness and Connectors
Body Electric
Refer to Page
Refer to
11.14.6.10 System Unable to Self-
test (Buzzer Did Not
Ring).
Refer to
11.14.6.11 Buzzer Continuously
Ring with Gear at
R.
Refer to
11.14.6.12 Self-test Right Corner
Sensor
Malfunction.
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