Ford Falcon. Manual - part 346

413-13-1 Parking 

Aid 413-13-1

SECTION : 413-13 Parking Aid

VEHICLE APPLICATION : 2003.0 BA Falcon
CONTENTS  

PAGE

DESCRIPTION AND OPERATION

  Reverse Sensing System  ......................................................................................................413-13-2

  System  Components  ............................................................................................................413-13-3

 Other 

Information 

 

.................................................................................................................413-13-4

DIAGNOSIS AND TESTING

  Parking Aid   ............................................................................................................................413-13-6

  Inspection and Verification  ...................................................................................................413-13-6

 WDS 

Test 

Procedure 

 

...........................................................................................................413-13-6

 DTC 

Chart 

 

............................................................................................................................413-13-6

 PID 

Chart 

 

.............................................................................................................................413-13-7

  Symptom Chart PAM  ...........................................................................................................413-13-8

  Connector Circuit Reference  ................................................................................................413-13-8

 Pinpoint 

tests 

........................................................................................................................413-13-9

REMOVAL AND INSTALLATION

  Reverse Sensing System ECU   ...........................................................................................413-13-15

  Sensors    ...............................................................................................................................413-13-16

413-13-2 Parking 

Aid 413-13-2

DESCRIPTION AND OPERATION

Reverse Sensing System

The system consists of four ultrasonic sensors

sensing zone may be altered causing inaccurate

mounted in the rear bumper, a controller and an audio

measurement of obstacles or false alarms.

warning output that is emitted from the rear audio

The system is initialized after the ignition is turned on

speakers or a speaker attached to the controller. The

and reverse gear selected. An audible tone will then

system measures the distance to the closest obstacle sound for 0.5 seconds.

when reversing and emits a corresponding audible

The Reverse Sensing System will detect objects

warning.

within the sensor range (within approximately 180cm).

The Reverse Sensing System is an auxiliary system

The coverage area is decreased around the outer

that is not intended to relieve the driver of their

corners of the bumper.

responsibility for exercising due care and attention

when reversing.
The sensors sequentially transmit short ultrasonic

pulses (48kHz) then listen for the echo reflected from

the detected object. The electronic control unit using

triangulation data from the four sensors calculates the

distance. Various sound absorbing/reflecting materials

or operating conditions can have an effect on the

detection range:

Ultrasonic waves, heavy rain and/or conditions

causing disruptive reflections may lead to objects

not being detected by the sensors.
In addition, objects that absorb ultrasonic waves

may not always be detected due to their

unfavorable surface characteristics.
Sensors that are covered in dirt, ice or mud may

cause the system to detect objects incorrectly.
If the vehicle sustains damage to the rear

bumper/fascia, leaving it misaligned or bent, the

G56520 en

413-13-3 Parking 

Aid 413-13-3

DESCRIPTION AND OPERATION (Continued)

When towing a trailer a switch fitted to the Ford

vehicle harness socket is used to disable the system.

If using a bicycle rack on the tow bar then a number

plate lamp and tail lamp should be fitted and plugged

into the trailer socket. This will disable the parking aid,

otherwise a disturbance to the sensor field will occur

when reverse is engaged triggering the continuous

audible warning.
Depending on the type of Reverse Sensing System

fitted to your vehicle, reverse warning tone system

can be increased or decreased in volume. To change

the volume of the Reverse Sensing System warning

tone, turn off the audio system, then use the volume

control to alter warning tone volume. To disable

audible warning tone, set volume to minimum.

System Components

The system comprises:

Qty

Description

Part Number

1

Control unit without loud

3R23 15K866

speaker LWB & SWB

AA

Fairmont Ghia

1

Control unit with loud

3R23 15K866

speaker Fairmont

BA

4

Ultrasonic sensor 3.1

3R23 15K859

AAW

4

Decoupling ring

3R23 15A869

AA

4

Housings

3R23 15K861

When an object is detected within the sensor range,

AA

an intermittent warning tone is emitted. As the

distance between the object and the sensors

4

Retaining Spring

3R23 15A873

decreases, the warning tone will sound at shorter

AA

intervals. A continuous warning tone sounds if the

4

Bezel

3R23 15A872

object is within 45cm of the rear bumper. A summary

*AW

of the warning tones is included in the table below.

Sensor

Warning Range Frequency Tone On

Tone Off

(cm)

Hz

<=45

1200

Continuous

0ms

<=60

1200

75ms

75ms

<=80

1200

75ms

150ms

<=105

1200

75ms

225ms

<=145

1200

75ms

300ms

<=185

1200

75ms

375ms

Hardware Error 600

Continuous

at power up

Error Message 600

Continuous

at power up

Ready Tone,

1200

0.7sec

reverse

engaged

G56520 en

413-13-4 Parking 

Aid 413-13-4

DESCRIPTION AND OPERATION (Continued)

Fairmont Module (with speaker)

Sensor Assembly

Other Information

Item

Description

1

Bezel

Painting specifications for Ultrasonic sensors

2

Bumper Fascia

The ultrasonic sensors are painted to match the

3

Housing Element

vehicle colour range. Paint is applied to a maximum

4

Retaining Spring

thickness of 120µm; additional paint must not be

applied, as this will effect the operational range of the

5

Decoupling Ring

sensor.

6

Sensor

G56520 en