p0460 JAGUAR XFR 2010 1.G Workshop Manual

Published: 12-May-2014
General Information - Diagnostic Trouble Code (DTC) Index DTC: Rear
Junction Box (RJB)
Description and Operation

Rear Junction Box (RJB)


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.
NOTES:


If a control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty
Policy and Procedures manual, 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 5-digit codes. Match the 5 digits from the scan tool to
the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the
manufacturer-approved diagnostic system).


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


Check DDW for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific
customer complaint and carry out the recommendations as required.

The table below lists all Diagnostic Trouble Codes (DTCs) that could be logged in the Rear Junction Box (RJB). For additional
diagnosis and testing information, refer to the relevant Diagnosis and Testing section in the workshop manual.
For additional information, refer to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

DTC Description Possible Causes Action P0460-11
Fuel Level Sensor A
Circuit - Circuit short to
ground
Fuel level sensor A
analogue input circuit -
short to ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
fuel level sensor A analogue input circuit for short to
ground P0460-15
Fuel Level Sensor A
Circuit - Circuit short to
battery or open
Fuel level sensor A
analogue input circuit -
short to power, open
circuit
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
fuel level sensor A analogue input circuit for short to
power, open circuit P0571-12
Brake Switch A Circuit -
Circuit short to battery
Footbrake switch digital
input signal circuits -
short to power
Refer to the electrical circuit diagrams and check
footbrake switch digital input signal circuits for
short to power P1230-12
Fuel Pump Low Speed
Malfunction (VLCM) -
Circuit short to battery
High Side output not
driven - Diagnosis
feedback indicates
output is short to power
Refer to the electrical circuit diagrams and check
fuel pump delivery module for short to power

DTC Description Possible Cause Action U300362 Battery Voltage
Mis-match in battery voltage,
of 2 volts or more, between
CJB and RJB Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system. Rear Junction Box (RJB)

CAUTIONS:


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


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 5-digit codes. Match the 5 digits from the scan tool to
the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the
manufacturer-approved diagnostic system)


When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places and with a
current calibration certificate. When testing resistance, always take the resistance of the digital multimeter 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 diagnostic trouble codes 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


Where an 'on demand self-test' is referred to, this can be accessed via the 'diagnostic trouble code monitor' tab on the
manufacturers approved diagnostic system


Check DDW for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific
customer complaint and carry out the recommendations as required

DTC Description Possible Causes Action P046011
Fuel Level Sensor
A Circuit
Fuel level sensor A
analogue input circuit -
short to ground Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check fuel level sensor A analogue input
circuit for short to ground P046015
Fuel Level Sensor
A Circuit
Fuel level sensor A
analogue input circuit -
short to power, open
circuit Carry out any pinpoint test associated with this DTC using the
manufacturer approved diagnostic system. Refer to the electrical
circuit diagrams and check fuel level sensor A analogue input
circuit for short to power, open circuit P057112
Brake Switch A
Circuit
Footbrake switch digital
input signal circuits -
short to power Refer to the electrical circuit diagrams and check footbrake switch
digital input signal circuits for short to power P123012
Fuel Pump Low
Speed
Malfunction
(VLCM)
High Side output not
driven - Diagnosis
feedback indicates output
is short to power Refer to the electrical circuit diagrams and check fuel pump
delivery module for short to power