Sensor; Main Harness; Harness (Short) (For Sensor No.3,4) - Mazda 6 Installation Instructions Manual

11．TROUBLESHOOT
Procedure
• Switch the ignition ON (engine off)
1
• Turn system switch on
Bring a piece of cardboard close to each sensor to verify that
the intermittent beeper sound changes depending on the
2 distance.
* When verifying, shift the shift lever to the reverse position.
Verify that a beep sound is not heard even though cardboard
3 comes close to each sensor when the system switch is
turned off.
If a beeper sound is not heard or is heard continuously, verify the following troubleshooting:
Proce
dure
1 Beep sound is not heard even if each sensor operates
While the system switch is turned on, the malfunction alarm
2 sound (continuous or inconsistent sound for 1 s or more) is
heard even though obstructions are not detected.
When the sensor is operated, a beep sound is heard
3
continuously
Operation
Operation
23
Inspection item(s)
－
• Connection between sensor wiring harness and
control unit
• Connection between each sensor and sensor
wiring harness
• Connection between control unit and buzzer
• Connection between switch and wiring harness
Inspection item(s)
• Is there a device generating ultrasonic waves
near the vehicle?
(Air compressor, high-pressure car washer,
impact wrench, or electric drill)
• Connection between sensor wiring harness and
main wiring harness
• Connection between sensor and sensor wiring
harness
• Are there obstructions around the vehicle?
• Is the ground detected?
* If beep sound stops after placing cardboard on
the ground, the ground may be detected.
Is the sensor installed in the direction indicated
in the instructions?
Up side
Rear bumper
Sensor tab
Sensor tab

Sensor