Jaguar XJ (X350). Manual — part 1267

to obstacles near the front or rear bumper of the vehicle when parking or travelling at a slow
speed. The system provides an assistance to the driver when parking in order to help avoid
collision with obstacles.

The sensor range at the front of the vehicle should be 0.8 meters and the sensor range at the
rear of the vehicle should be 1.8 meters. This should extend the full width of the rear bumper
and reduce to 50 cm at the vehicle corners. The vertical range is adequate to protect the
highest and lowest points of the front and rear of the vehicle. The system will detect curbs
with heights of at least 18 cm. Obstacles, such as curbs, that are low enough to pass under the
vehicle until they make contact with the tires will not be detected.

The system activates a specific speaker with a tone signifying the distance to the obstacle. The
tone consists of a beep and defined space ratio which varies depending on the calculated
distance. When the distance to the obstacle is less than 20 cm the speaker tone is continuous.

The parking aid is continuously in operation, unless towing when the system automatically
switches off. If the reverse aid develops a fault the tone will sound continuously for three
seconds when the ignition is switched on or the reverse gear is selected.

The parking aid system comprises of:

•

a module mounted in the spare wheel well just rearward of the spare tyre.

•

four rear bumper mounted sensors which have a straight electrical connector plug.

•

four front bumper mounted sensors of which the two inner sensors have a 90° angled
electrical connector in order to give clearance to the bumper reinforcing frame.

•

two audible speakers, one mounted on the rear parcel shelf and the other mounted
behind the speedo binnacle.

•

a cancellation switch that is mounted into the roof console. This is fitted for the driver
to disable the system when in slow moving traffic. This stops the front parking aid
continuously monitoring the vehicle in front, however, the system will only stay
inoperative whilst the vehicle is moving or when the ignition switch is reset OFF or
ON.

Diagnosis and testing

Parking Aid

Principles of Operation

For a detailed description of the Parking Aid, refer to the relevant Description and Operation sections

in the workshop manual.

Parking Aid

Inspection and Verification

1 . Verify the customer concern.

2 . Visually inspect for obvious signs of electrical damage.

Mechanical

Electrical

•

Obstructions or Damage to Parking
Sensors

•

Parking Sensor Face Obstructed (e.g.
snow, ice, dirt, flies etc)

•

Fuses/Relays

•

Damaged, Loose or Corroded Connector(s)

•

Damage to Wiring Loom/Incorrect
Location, Stretched or Taught

3 . If an obvious cause for an observed or reported concern is found, correct the cause (if possible)

before proceeding to the next step.

4 . If the cause is not visually evident, verify the symptom and refer to the Jaguar approved diagnostic

system.

DTC Index

Parking Aid Module

CAUTION: When probing connectors to take measurements in the course of the pinpoint

tests, use the adaptor kit, part number 3548-1358-00.

NOTE:

If the control module/component is suspect and the vehicle remains under manufacturer

warranty, refer to the Warranty Policy and Procedures manual (section B1.2), or determine if

any prior approval program is in operation, prior to the installation of a new

module/component.

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NOTE:

When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to

three decimal places and with a current calibration certificate. When testing resistance, always

take the resistance of the DMM leads into account.

NOTE:

Check and rectify basic faults before beginning diagnostic routines that involve pinpoint tests.

NOTE:

Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.

NOTE:

If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an

intermittent concern may be the cause. Always check for loose connections and corroded

terminals.

DTC

Description

Possible Causes

Action

B1299

Power Supply

Sensor Circuit

Short To Ground

•

Parking aid module,
parking distance sensor
(rear)power circuit - short
to ground

Refer to electrical circuit diagrams,

notes and check parking aid module,

parking distance sensor (rear) power

circuit for short to ground

B1342 ECU is Defective

•

Parking aid module -
memory failure (RAM)

Suspect faulty module, check and install

as required, refer to the new module

installation note at the top of the DTC

Index

B2207

ECU ROM

Checksum Error

•

Parking aid module -
memory failure (ROM)

Suspect faulty module, check and install

as required, refer to the new module

installation note at the top of the DTC

Index

B2373

LED #1 Circuit

Short to Power

•

Parking aid module,
parking aid status (roof
console LED) circuit -
short to power or open

Refer to electrical circuit diagrams,

notes and check parking aid module,

parking aid status (roof console LED)

circuit for short to power or open

circuit

circuit

B2477

Module

Configuration

Failure

•

Parking aid module -
configuration failure
(EEPROM error during
power up)

Reconfigure. If this fails suspect faulty

module, check and install as required,

refer to the new module installation

note at the top of the DTC Index

C1699

Left Rear Sensor

Circuit Short to

Power

•

Parking aid module, rear
outer left sensor data
circuit - short to power

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Refer to

electrical circuit diagrams, notes and

check parking aid module, rear outer

left sensor data circuit for short to

power

C1700

Left Rear Sensor

Circuit Failure Or

Blockage

•

Parking aid module, rear
outer left sensor data
circuit - open or short to
ground

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Refer to

electrical circuit diagrams, notes and

check parking aid module, rear outer

left sensor data circuit for open circuit

or short to ground

C1701

Left Rear Sensor

Circuit Fault

•

Parking aid module - rear
outer left sensor fault

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Suspect

rear outer left sensor fault

C1702

Right Rear

Sensor Circuit

Short to Power

•

Parking aid module, rear
outer right sensor data
circuit - short to power

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Refer to

electrical circuit diagrams, notes and

check parking aid module, rear outer

right sensor data circuit for short to

power

C1703

Right Rear

Sensor Circuit

Failure Or

Blockage

•

Parking aid module, rear
outer right sensor data
circuit - open or short to
ground

Carry out any pinpoint tests associated

with this DTC using the manufacturer

approved diagnostic system. Refer to

electrical circuit diagrams, notes and

check parking aid module, rear outer

right sensor data circuit for open circuit

or short to ground

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