2010 JAGUAR XFR keyless

Published: 11-May-2011
Multifunction Electronic Modules - Remote Keyless Entry (RKE) Module
Diagnosis and Testing

Principles of Operation

For a detailed description of the Remote Keyless Entry system, refer to the relevant Description and Operation sections in the
workshop manual. REFER to: (419-10 Multifunction Electronic Modules)

Module Controlled Functions (Description and Operation), Module Controlled Functions (Description and Operation), Module Controlled Functions (Description and Operation).
Inspection and Verification


CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not
guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.
1. Verify the customer concern.
2. Visually inspect for obvious signs of damage and system integrity.

Visual Inspection
Mechanical Electrical
Misaligned door(s), hood or luggage compartment lid
Door latch(s)
Actuating rod(s)
Exterior door handle(s)
Interior door handle(s)
Door lock cylinder
Cable(s)
Luggage compartment lid exterior release switch
Fuse(s)
Wiring harness
Electrical connector(s)
Door lock actuator(s)
Remote transmitter batteries
Vehicle battery
Remote transmitter
Door lock switch(s)
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, check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.

DTC Index


CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part
number 3548-1358-00.
NOTES:


If the control module or a 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 programme is in operation, prior to
the installation of a new module/component.


Generic scan tools may not read the codes listed, or may read only five digit codes. Match the five digits from the scan
tool to the first five digits of the seven digit code listed to identify the fault (the last two digits give additional information
read by the manufacturer approved diagnostic system).


When performing electrical voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal
places, and with an up-to-date calibration certificate. When testing resistance, always take the resistance of the DMM leads
into account.


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


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


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 Cause Action B10CE24
Right Front Latch
Clutch Switch
Signal stuck high - button
stuck in active position Check for stuck right front door latch clutch switch. Refer to
the electrical circuit diagrams and check right front door
latch clutch switch circuit for short to ground B10CF24
Right Rear Latch
Clutch Switch
Signal stuck high - button
stuck in active position Check for stuck right rear door latch clutch switch. Refer to
the electrical circuit diagrams and check right rear door
latch clutch switch circuit for short to ground B10D124 Left Front Lock Button
Signal stuck high - button
stuck in active position Check for stuck left front door handle lock switch. Refer to
the electrical circuit diagrams and check left front door
handle lock switch circuit for short to ground B10D224 Left Rear Lock Button
Signal stuck high - button
stuck in active position Check for stuck left rear door handle lock switch. Refer to
the electrical circuit diagrams and check left rear door
handle lock switch circuit for short to ground B10D324
Right Front Lock
Button
Signal stuck high - button
stuck in active position Check for stuck right front door handle lock switch. Refer to
the electrical circuit diagrams and check right front door
handle lock switch circuit for short to ground B10D424
Right Rear Lock
Button
Signal stuck high - button
stuck in active position Check for stuck right rear door handle lock switch. Refer to
the electrical circuit diagrams and check left front door
handle lock switch circuit for short to ground U001000
Medium Speed CAN
Communication Bus
No subtype information Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Carry out
CAN network integrity test using the manufacturer approved diagnostic system U014000
Lost Communication
With Body Control
Module
Missing message from CJB Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Carry out
CAN network integrity test using the manufacturer
approved diagnostic system. Refer to the electrical circuit diagrams and check power and ground supplies to CJB U014200
Lost Communication
With Body Control
Module "B"
Missing message from RJB Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Carry out
CAN network integrity test using the manufacturer
approved diagnostic system. Refer to the electrical circuit diagrams and check power and ground supplies to RJB U015500
Lost Communication
With Instrument
Panel Cluster (IPC)
Control Module
Missing message from
instrument cluster Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Carry out
CAN network integrity test using the manufacturer
approved diagnostic system. Refer to the electrical circuit
diagrams and check power and ground supplies to
instrument cluster U030000
Internal Control
Module Software
Incompatibility
Invalid configuration
message is received Re-configure the RJB using the manufacturer approved
diagnostic system. Clear the DTC and retest. If the DTC is
still logged suspect the remote keyless entry module, refer
to the new module installation note at the top of the DTC
Index U201F00 External Receiver
No subtype information -
communication error Suspect the RF receiver, check and install a new RF receiver
as required, refer to the new module/component
installation note at top of DTC Index U201F13 External Receiver
Line open Refer to the electrical circuit diagrams and test RF receiver
communication circuit to remote keyless entry module for
short to ground or open circuit U201F87 External Receiver
Transmission error Refer to the electrical circuit diagrams and check the data
line between the RF receiver and the remote keyless entry
module for short, open circuit. Suspect the RF receiver or
remote keyless entry module, check and install a new RF
receiver or remote keyless entry module as required, refer
to the new module/component installation note at top of
DTC Index U210000
Initial Configuration
Not Complete
No subtype information Configure the Remote Keyless Entry module using the
manufacturer approved diagnostic system U210100
Control Module
Configuration Incompatible
No subtype information Re-configure the RJB using the manufacturer approved
diagnostic system U300049 Control Module
Internal electronic failure Install a new remote keyless entry module, refer to the
new module installation note at the top of the DTC Index U300281
Vehicle Identification
Number
Vehicle/component
mis-match. Module
previously installed to other
vehicle Install correct/new module to vehicle specification, refer to
the new module/component installation note at the top of
the DTC Index www.JagDocs.com

DTC Description Possible Cause Action U300362 Battery Voltage
Mis-match in battery
voltage, of 2 volts or more,
between remote keyless
entry module and RJB Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system

10 Engine-compartment-lid striker 11 Engine-compartment-lid safety hook and guide Central Locking and Keyless Vehicle Locking



Item Description 1 CJB (central junction box) 2 Keyless vehicle, RH front door antenna * – integral to the handle 3 Keyless vehicle, RH rear door antenna * – integral to the handle 4 Central locking radio frequency receiver 5 RJB (rear junction box) 6 Keyless vehicle, luggage compartment antenna * 7 Keyless vehicle module 8 Keyless vehicle, LH rear door antenna * – integral to the handle 9 Keyless vehicle, LH front door antenna * – integral to the handle Comments:
(* Only with passive entry option fitted)

8 Door latch - RH rear passenger 9 Door ajar switch - RH rear passenger 10 Door latch - LH (left-hand) rear passenger 11 Door ajar switch - LH rear passenger 12 Door module - LH rear passenger 13 Door ajar switch - driver door 14 Door latch - driver door 15 Door module - driver door 16 CJB (central junction box) 17 Central-locking radio-frequency receiver 18 Keyless vehicle module Luggage Compartment Lid and Fuel Filler Door Locking

Note: A = Hardwired; N = Medium speed CAN 1 Battery 2 Megafuse (250 A) 3 RJB 4 Locking motor - fuel door 5 Keylesss vehicle module 6 Emergency key barrel - luggage compartment 7 Release latch - luggage compartment lid 8 Ajar switch - luggage compartment lid 9 Fascia switch - luggage compartment lid 10 Instrument cluster 11 CJB Passive Entry System

Item Description Note: A = Hardwired; N = Medium speed CAN 1 Battery 2 Megafuse (250 A) 3 CJB 4 Radio frequency receiver 5 Keylesss vehicle module 6 Door handle, lock/unlock switch and antenna - front passenger 7 Door latch, fast latch - front passenger 8 Door latch, fast latch - RH rear passenger 9 Door handle, lock/unlock switch and antenna - RH rear passenger 10 Door latch, fast latch - LH rear passenger 11 Door handle, lock/unlock switch and antenna - LH rear passenger 12 Door latch, fast latch - driver door 13 Door handle, lock/unlock switch and antenna - driver door
System Operation

The hinged panels are secured with latches and strikers. A remotely operated central locking system controls the locking and
unlocking of the door and luggage compartment latches. A radio frequency Smart Key allows the vehicle to be locked and
unlocked by pressing the appropriate handset buttons. Two levels of central locking system are available: remote central
locking and an optional passive entry system.

The passive entry and associated passive start system allows the driver to unlock and start the vehicle without using a vehicle
key in a door-lock or ignition switch. The passive entry system is an optional fitment while the passive start system is a
standard fitment on all vehicles. The passive start system is combined with the passive anti-theft immobilization system.
Refer to: Anti-Theft - Passive (419-01B Anti-Theft - Passive, Description and Operation).
Emergency access to the vehicle is provided by two concealed key barrels: one located in the front left-hand door handle and
one located on the underside of the luggage compartment lid finisher. An emergency, removable key blade is fitted into the
Smart Key.

Operation of either key barrel unlocks the vehicle but does not disarm the alarm system. The key barrels in the door and
luggage compartment lid are concealed by a plastic cover which can be removed by inserting the blade of the emergency key
into a slot in the cover.
Locking and unlocking conditions using the emergency key in the door key barrel:
If the alarm is not armed the vehicle can be centrally unlocked.
If the alarm is armed the door only can be opened and the alarm will be triggered.
The vehicle cannot be double locked or the alarm system armed using the emergency key.

The vehicle can be centrally locked and unlocked from inside using the interior handle release levers on the front doors only.
Central locking and unlocking can also be performed using lock and unlock buttons on the vehicle's fascia. The driver can select
locking options, single point entry or drive away locking for example, from a menu available on the touch screen.

Central Locking – Radio Frequency Remote System

The radio frequency central locking system, provides locking and unlocking of the vehicle from inside and outside of the
vehicle. The system is operated using buttons on the Smart Key, which transmits radio frequency signals to the central locking
radio frequency receiver.

The system provides additional security by double-locking the doors from outside the vehicle if the lock button, on the Smart
Key, is pressed twice within 3 seconds; this function is not applicable in North American Specification (NAS) and Japanese
markets.

Additional buttons on the Smart Key provide for the convenience operation of the luggage compartment lid release, headlamp
delay and panic alarm functions. A global open or close feature is also available in certain markets using the lock/unlock
buttons.

Passive Entry

On vehicles fitted with the optional passive entry system, the vehicle can be unlocked without the use of a key blade or
pressing buttons on the Smart Key. The Smart Key operates the passive entry system in addition to the passive start system.
Refer to: Anti-Theft - Passive (419-01B Anti-Theft - Passive, Description and Operation).
The passive entry system is controlled by the keyless vehicle module and five low frequency antennas. One antenna located in
each door handle and one antenna located behind the rear bumper cover.

When a vehicle door handle is pulled to the first five-percent of its travel and the Smart Key is within one meter of the handle;
the Smart Key receives the low-frequency signal transmitted from the keyless vehicle module. The Smart Key responds with a
radio frequency transmission of its authorization code. The radio frequency signal is received by the central locking radio-
frequency receiver and passed to the keyless vehicle module which checks and approves the code as valid. Once the handle is

door modules.

Locking of the vehicle is performed by pressing one of the buttons located on each exterior door handle, with the Smart Key
within a one meter range of the vehicle. When the door handle button is pressed, the keyless vehicle module transmits a
low-frequency signal via the low-frequency handle antenna to the Smart Key. The Smart Key transmits a radio frequency signal
which is verified by the keyless vehicle module and allows the doors to be locked or double locked and the alarm system to be
armed.

To double lock the vehicle, the button on the exterior door handle must be pressed twice within three seconds, with the Smart
Key within one meter range of the vehicle.

If a door, engine-compartment lid or the luggage compartment lid is ajar when an attempt to lock the vehicle is made, an error
tone is emitted and no locking action will occur.
Refer to: Anti-Theft - Active (419-01A Anti-Theft - Active, Description and Operation).


Engine Compartment Lid Latches Component Description

Two engine-compartment lid latches are located on the front crossmember. An engine-compartment lid release lever is located
below the instrument panel on the left-hand 'A' pillar and is connected with a cable to the latches. An engine-compartment lid
ajar switch is integrated in the engine-compartment lid latch.

Door Latches

The door latches are located at the rear of each door and engage with a striker on the adjacent pillar. Each door latch motor
assembly contains micro-switches for lock, unlock and door ajar. Motors provide for the central door locking and the double
locking feature. The electrical control for the door latch components is provided by the CJB and RJB via the driver's and
passenger door modules.

The interior door handles are connected by a cable to the latch release mechanisms. The interior door handles also incorporate
a locking facility to allow the doors to be locked from inside the vehicle when all the doors are closed. If a door is ajar the
locking feature is inhibited.

Luggage Compartment Lid Latch

The luggage compartment latch is attached to the bottom of the lid. The latch can be released electrically by pressing the
interior release button located on the outboard side of driver's lower knee bolster; a release button is also provided on the
Smart Key. There is also a release switch on the underside of the luggage compartment lid finisher.

On NAS vehicles an emergency release cable is attached to the latch. This allows the latch to be manually opened by pulling a
handle located in the luggage compartment lid interior trim.

Fuel Filler Door

The fuel filler door is electrically locked by a motor located on the fuel door housing. The fuel door is locked when the vehicle
is locked and alarmed. The fuel door can be opened when the vehicle is unlocked or locked:

via an interior handle,
via drive-a-way locking,
via the lock switch on the fascia,
via the external door key barrel. www.JagDocs.com