Ford Kuga
Service Manual
Parking Aid » Parking Aid (System Operation and Component Description)
Component Description

Rear parking aid speaker

The rear parking aid speaker, in addition to its actual function, is also used for audible indication of various types of error in the front and rear parking aids. If the rear parking aid speaker becomes defective, the front parking aid speaker will then be used to indicate failure modes.

If an error is detected in the system, a signal tone is emitted via the speaker for 3 seconds.

Parking aid sensors

CAUTIONS:

Always keep sensors free from dirt, ice and snow. Do not use any sharp objects to clean the sensors.
If a high-pressure cleaner is used to wash the vehicle, the jet must only be aimed at the sensors briefly at a distance of at least 20 cm.

The parking aid sensor consists of the following:

Plastic housing
Aluminum membrane with Piezo disc
Decoupling ring
Printed circuit board (PCB)

The parking aid sensor consists of a sensor and a holder. The holder makes sure that each parking aid sensor is correctly orientated in relation to its location in the rear bumper.

The sensors have a 3-pin connector which is connected to the wiring harness of the front bumper. This in turn is connected to the main body wiring harness. Three pins provide for power supply, ground and signal lines to and from the parking aid module.

The disc resonates at a frequency of ca. 50kHz, producing the ultrasonic output. The disc also receives the reflected echo signal from any objects within range.

Parking aid module

The parking aid module has three connectors which provide for power, ground and MS CAN bus connections, as well as the front and rear parking aid sensors, the parking aid switch and parking aid speaker.

The parking aid module carries out self-check routines and when the parking aid is active, checks the parking aid sensor wiring for short or open circuits. If a concern is detected, a diagnostic trouble code (DTC) is stored in a memory in the parking aid module and the front and rear parking aid sensors will be disabled until the DTC is cleared and the ignition cycled. The driver recognizes a problem through the flashing LED and a shrill continuous tone, which is emitted for 3 seconds when the parking aid is activated. If the parking aid is working properly, short tones are emitted instead of this continuous tone. DTCs can be read using the Ford approved diagnostic tool through the data link connector (DLC).

Front parking aid speaker

The front parking aid speaker, in addition to its actual function, is also used for audible indication of various types of error in the front and rear parking aids when the rear parking aid speaker fails.

Parking aid switch

The parking aid switch is a non-locking switch with an integrated LED for switching the parking aid on and off. When pressed, the parking aid switch momentarily connects a ground to the parking aid module. The LED indicates when the parking aid is active. The LED is controlled by the parking aid module.

The parking aid switch allows the driver to disable the parking aid when reverse gear is selected or to activate the parking aid sensors when not in reverse gear.

If a high tone is emitted for 3 seconds and the lights in the switch flash, this indicates that there is a fault. The system is then deactivated.

Parking aid camera module

The data from the optional parking aid is sent to the module via the Mid Speed CAN data bus. The signals from the steering angle sensor are sent to the module via cable. The module is connected to the navigation device via a video-in/out cable.

Parking Aid Camera

Parking Aid Camera