Parking Sensor Buzzer Does Not Activate/Buzzer Sound Is Small (Parking Sensor System): Notes

NOTE:

• If there is any vehicle malfunction complaint lodged by a customer, perform FORWARD (PARKING SENSOR SYSTEM) malfunction diagnosis according to the troubleshooting procedure. (See FORWARD (PARKING SENSOR SYSTEM) .)

PARKING SENSOR BUZZER DOES NOT ACTIVATE/BUZZER SOUND IS SMALL TROUBLESHOOTING REFERENCE

Description

PARKING SENSOR BUZZER DOES NOT ACTIVATE/BUZZER SOUND IS SMALL The parking sensor buzzer is not activated even if the parking sensor switch is turned on. (Parking sensor indicator illumination is normal) The volume of the parking sensor buzzer is small.

Possible Causes

The volume setting of the buzzer is at minimum or close to minimum. Front parking sensor buzzer connector or terminal malfunction Rear parking sensor buzzer connector or terminal malfunction Parking assist unit connector or terminal malfunction Short to ground in wiring harness between the following terminals: Front parking sensor buzzer terminal B-Parking assist unit terminal Y Front parking sensor buzzer terminal A-Parking assist unit terminal Z Rear parking sensor buzzer terminal B-Parking assist unit terminal W Rear parking sensor buzzer terminal A-Parking assist unit terminal X Short to power supply in wiring harness between the following terminals: Front parking sensor buzzer terminal B-Parking assist unit terminal Y Front parking sensor buzzer terminal A-Parking assist unit terminal Z Rear parking sensor buzzer terminal B-Parking assist unit terminal W Rear parking sensor buzzer terminal A-Parking assist unit terminal X Open circuit in wiring harness between the following terminals: Front parking sensor buzzer terminal B-Parking assist unit terminal Y Front parking sensor buzzer terminal A-Parking assist unit terminal Z Rear parking sensor buzzer terminal B-Parking assist unit terminal W Rear parking sensor buzzer terminal A-Parking assist unit terminal X Front parking sensor buzzer malfunction Rear parking sensor buzzer malfunction Parking assist unit malfunction

Fig 1: Parking Assist Unit Circuit Diagram

Courtesy of MAZDA MOTORS CORP.