2010 JAGUAR XFR Pump

Published: 11-May-2011
Climate Control - Control Components - System Operation and Component Description
Description and Operation

Control Diagram

NOTE: A = Hardwired; N = Medium speed CAN (controller area network) bus; O = LIN (local interconnect network) bus; P
= Media orientated system transport (MOST) ring.



Item Description 1 Battery 2 BJB (battery junction box) 3 CJB (central junction box) 4 Auxiliary coolant pump Comments:
All except 3.0L vehicles; 5.0L version shown, 3.0L diesel version similar.

Auxiliary Climate Control - Auxiliary Coolant Flow Pump
Removal and Installation

Removal Published: 11-May-2011


1. WARNING: Do not work on or under a vehicle supported only by a jack.
Always support the vehicle on safety stands.
Raise and support the vehicle.

2. Refer to: Air Deflector (501-02, Removal and Installation).

3.















4.
lose.
















5.
lose.
NOTE: Clamp the coolant hose to minimize coolant

















NOTE: Clamp the coolant hose to minimize coolant

the RCM and illuminated by the instrument cluster on receipt of high speed CAN bus messages. The safety belt warning indicator is not subject to the 3 second indicator check when the ignition is switched on.

The operation of the passenger seat buckle switch is as described below with the exception that the instrument cluster must
receive a hardwired signal from the belt minder control module to indicate that a passenger is occupying the seat.
The safety belt warning indicator is subject to a timer. The warning indicator is activated when the following conditions exist:
Ignition is switched on
One of the front seat belts is unbuckled
USA market only - 75 seconds has elapsed after ignition on mode is selected
Vehicle is not in reverse gear
Vehicle speed is more than 8 km/h (5 mph).

Once the above parameters are met, the instrument cluster flashes the warning indicator at 2 Hz for 10 seconds accompanied
by a simultaneous chime. After 10 seconds the chime ceases and the warning indicator is permanently illuminated for 20
seconds. This sequence is repeated every 30 seconds until one of the following events occurs:
300 seconds has elapsed
The safety belt of the occupied front seats is fastened
The ignition is switched to off mode
The vehicle speed decreases to below 5 km/h (3 mph).


NOTE: On USA market vehicles, the warning indicator in not permanently illuminated.

The safety belt minder function cannot be disabled. The seat belt minder function can be disabled.
Refer to: Safety Belt System (501-20A Safety Belt System, Description and Operation). 14. Side Lamp Indicator

The instrument cluster controls the green colored side lamp indicator on receipt of a side lamp status message on the medium
speed CAN bus from the CJB and the auxiliary junction box. The lighting switch on the LH steering column multifunction switch is connected to the instrument cluster. Selections using this switch are detected by the cluster which requests the side or
headlamp operation via a message to the CJB and the RJB. The CJB and the RJB responds with a side lamp active message and the cluster illuminates the side lamp indicator. The side lamp indicator is not subject to the 3 second indicator check when
the ignition is switched on.
15. High Beam Indicator

The instrument cluster controls the blue colored high beam indicator on receipt of a high beam status message on the medium
speed CAN bus from the CJB. The lighting switch on the LH steering column multifunction switch is connected to the instrument cluster. High beam or flash selections using this switch are detected by the cluster which requests the light
operation via a CAN message to the CJB. The CJB responds with a high beam active message and the cluster illuminates the high beam indicator. The high beam indicator is not subject to the 3 second indicator check when the ignition is switched on.
16. Rear Fog Lamp Indicator

The amber colored rear fog lamp indicator is controlled by the auxiliary junction box and illuminated by the instrument cluster
on receipt of a rear fog lamp on message on the medium speed CAN bus from the RJB. The indicator is illuminated for as long as the rear fog lamps are active. The rear fog lamp indicator is not subject to the 3 second indicator check when the ignition is
switched on.

SPEEDOMETER

The speedometer is driven by high speed CAN signals transmitted by the ABS module. The wheel speeds are measured by sensors reading the rotational speed of the rear wheels from toothed targets on the hubs. An average of the two wheel speeds
are passed from the sensors to the ABS module in the form of pulsed signals. The ABS module converts these signals into a speed output on the high speed CAN to the instrument cluster. The same speed outputs from the wheel speed sensors are also used to calculate the distance the vehicle has travelled.

TACHOMETER

The tachometer is driven by an engine speed signal transmitted on the high speed CAN from the ECM. The signal is derived from the CKP (crankshaft position) sensor. The signal is received by the instrument cluster microprocessor and the output from
the microprocessor drives the tachometer.

FUEL GAGE

The fuel gage is controlled by CAN messages from the RJB. The RJB reads the values output by the fuel level sensors every 131 ms and transmits a fuel tank contents value, corrected for battery voltage, in a CAN message to the instrument cluster. A fuel pump symbol is displayed to the left of the linear gage. An arrow above the symbol shows the driver on which side of the
vehicle the fuel filler cap is located. Above the linear fuel gage, is a LCD (liquid crystal display) area which displays odometer
and trip readouts. When a trip computer function is selected, these are replaced by a trip computer display for the trip function
selected.

LIQUID CRYSTAL DISPLAY

In the area above and below the message center is a LCD display. The area below the message center displays a linear fuel www.JagDocs.com

Specific warning lamp
'ON' C–1
Check with IDS for DTCs related to
identified vehicle system. . . C–2
Check for open circuit/shorts in wiring
related to warning lamp circuit (module,
sensor, switch) where appropriate. . . C–3
Perform cluster Self-Diagnostic Mode/ETM
test 3. Frost/ice warning illuminated in mixed red and
amber; therefore colour differs from other
warning lamps. When this test is ended,
warning lamps currently required to be 'ON' will
remain illuminated. . C–4
Check the specific vehicle system
indicated by the warning lamp
illuminated? What is the warning lamp telling me? Does this
check out with the DTC logged by the system indicating the fault? Fuel gauge operation D–1
Perform Self-Diagnostic Mode/ETM test 21
to establish if fuel level input to cluster is
out of range or invalid. 0 - 9 = short circuit; gauge will show empty. 10
– 254 = normal range. 255 = open circuit;
gauge will show empty. --- = missing signal; gauge will show empty. . D–2
Check gauge function versus
Self-Diagnostic Mode/ETM test 21. 0 = empty, 254 = full. 255 = invalid; gauge will
show empty. . D–3
Check for open circuit/shorts in wiring
between the Fuel Delivery Module, Jet
Pump Module and Rear Electronic Module (REM). . Fuel gauge reading E–1
Check gauge position versus
Self-Diagnostic Mode/ETM test 21. 0 = empty to 254 = full (255 invalid; gauge will
show empty). Other values percentage of above range e.g. 127 = half. . E–2
Calculate percentage fuel level from figure
obtained from Self-Diagnostic Mode/ETM
test 21 and compare to IDS vehicle fuel percentage test. Self-Diagnostic Mode fuel level percentage can
be calculated as follows: Value from
Self-Diagnostic Mode test 26 ÷ 254 x 100 = %
shown on gauge. . E–3
Monitor value of Self-Diagnostic Mode
test/ETM test 21 (during test drive) to
establish if input drops out of range. 0 - 9 = short circuit; gauge will show empty. 10
– 254 = normal range. 255 = open circuit;
gauge will show empty. --- = missing signal; gauge will show empty. . E–4
Monitor 'FUEL LEVEL' in IDS data logger
(during test drive) to correlate gauge position to vehicle reported fuel level. Gauge function is damped so will not follow
rapidly changing Fuel Delivery Module values. Speedometer
operation H–1
Monitor Self-Diagnostic Mode/ETM test 19
(during test drive) check to establish if
vehicle speed input to cluster is out of range or invalid. Display speed input in 1/10 mile/h, no decimal
point shown, and is compensated for tire size
etc. Displays ---- or INV if message is not
received or if received data is invalid. Speedometer reading I–1
During test drive compare speedometer
position to Self-Diagnostic Mode/ETM test
19, displayed value. Self-Diagnostic Mode displayed speed figure will
be approx 3% higher than speed indicated by
speedometer. Allowed tolerance – minus nothing/+ 10% + 2.5 mile/h. . I–2
Monitor Self-Diagnostic Mode/ETM test 19
(during test drive) to establish if vehicle
speed input to cluster drops out of range
or is invalid. Displays ---- if message is not received or if
received data is invalid for two seconds or more. . I–3
Check that installed wheels and tires are
standard Jaguar fitment. Confirm wheel
size in IDS, 'ADD REMOVE ACCESSORY'
section. Non standard wheels and tires may lead to
speed indication inaccuracies. Incorrectly set
wheel size will result in speed indication
inaccuracies. Trip and odometer distance
accumulation will also be incorrect. Tachometer operation J–1
Perform Self-Diagnostic Mode/ETM test 20
to establish if vehicle rpm input to cluster
out of range or invalid. Displays ---- or INV if message is not received
or if received data is invalid. Tachometer reading K–1
Check tachometer position versus
Self-Diagnostic Mode/ETM test 20, displayed value. Tachometer accuracy +/- 100 rpm. . K–2
Monitor 'ENGINE RPM' in IDS data logger
at constant engine rpm to compare
tachometer indicated engine rpm to
engine rpm reported by Engine Control
Module (ECM). Tachometer accuracy +/- 100 rpm. . K–3
Monitor Self-Diagnostic Mode test/ETM
test 20, (during test drive) to establish if
input to cluster drops out of range or is
invalid. Displays ---- or INV if message is not received
or if received data is invalid. Gauge judder L–1
Perform Self-Diagnostic Mode test/ETM
test 2, to prove out smooth gauge operation. . Gauge noise M–1
Perform vehicle road test. Gauges should
not be audible during operation in drive cycle. . www.JagDocs.com

DTC Description Possible Cause Action B100962
Ignition
Authorisation
LS CAN fault
CJB ignition, power and
ground supply circuits - short,
open circuit
Instrument cluster power and
ground supply circuits - short,
open circuit
Incorrect CJB or instrument
cluster installed
Target SID synchronization
error following re-programming
Noise/EMC related error Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check CAN
communications between CJB and instrument cluster. Refer
to the electrical circuit diagrams and check CJB ignition,
power and ground supply circuits for short, open circuit and
instrument cluster power and ground supply circuits for short,
open circuit. Check correct CJB and instrument cluster
installed. Perform the Immobilisation application from the
Set-up menu using the manufacturer approved diagnostic
system. Check CAN network for interference/EMC related
issues B100987
Ignition
Authorisation
CJB ignition, power and
ground supply circuits - short,
open circuit
LS CAN fault
Instrument cluster power and
ground supply circuits - short,
open circuit
Low battery voltage <9 volts Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check CJB ignition, power and
ground supply circuits for short, open circuit and instrument
cluster power and ground supply circuits for short, open
circuit. Check CAN communications between CJB and
instrument cluster. Check battery is in serviceable condition
and fully charged B100A62
Fuel Pump
Authorisation
LS CAN fault
RJB power and ground supply
circuits - short, open circuit
Instrument cluster power and
ground supply circuits - short,
open circuit
Incorrect RJB or instrument
cluster installed
Target SID synchronization
error following re-programming
Noise/EMC related error Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Check CAN
communications between RJB and instrument cluster. Refer
to the electrical circuit diagrams and check RJB power and
ground supply circuits for short, open circuit and instrument
cluster power and ground supply circuits for short, open
circuit. Check correct RJB and instrument cluster installed.
Perform the Immobilisation application from the Set-up menu
using the manufacturer approved diagnostic system. Check
CAN network for interference/EMC related issues B100A64
Fuel Pump
Authorisation
Target SID synchronization
error following re-programming
RJB power and ground supply
circuits - short, open circuit
LS CAN fault Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Perform the
Immobilisation application from the Set-up menu using the
manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit. Check CAN
communications between RJB and instrument cluster B100A87
Fuel Pump
Authorisation
RJB power and ground supply
circuits - short, open circuit
LS CAN fault
Instrument cluster power and
ground supply circuits - short,
open circuit
Low battery voltage <9 volts Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit and instrument cluster
power and ground supply circuits for short, open circuit.
Check CAN communications between RJB and instrument
cluster. Check battery is in serviceable condition and fully
charged B100B67
Column Lock
Ground
Authorisation
Algorithm based failure-signal
is incorrect after the event
Instrument cluster power and
ground supply circuits - short,
open circuit
LS CAN fault
RJB power and ground supply
circuits - short, open circuit
Vehicle speed present when
attempting to power ESCL
Engine speed present when
attempting to power ESCL
PowerMode status > 4 when
attempting to perform lock
action If a non start issue has not been identified, clear the DTC
and check vehicle starts correctly. If a non start issue has
been identified run the manufacturers approved diagnostic
system Start Authorisation Application. Carry out any
pinpoint tests associated with this DTC using the
manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit and instrument cluster
power and ground supply circuits for short, open circuit.
Check CAN communications between RJB and instrument
cluster. Check for invalid vehicle speed signal from
ABS/instrument cluster gateway. Check for invalid engine
speed signal from ECM/instrument cluster gateway. Check for
invalid signal from CJB B100B87
Column Lock
Ground
Authorisation
Instrument cluster power and
ground supply circuits - short,
open circuit
LS CAN fault
RJB power and ground supply
circuits - short, open circuit Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check RJB power and ground
supply circuits for short, open circuit and instrument cluster
power and ground supply circuits for short, open circuit.
Check CAN communications between RJB and instrument
cluster

DTC Description Possible Cause Action B100D96
Column Lock
Authorisation -
Component
internal failure
Battery voltage at electric
steering column lock control
module too low
Torque load on steering
column
CAN fault
Electric steering column lock
control module - Internal
failure
Clear DTC, repeatedly lock and unlock car using the
key fob and retest
If fault persists, check that the vehicle battery supply
voltage is between 9-16 volts. Rectify as required
Ensure the column lock bolt movement is not
obstructed or restricted (the parked position of the
road wheels may be exerting a turning force through
the steering column, preventing the lock from
releasing. The steering wheel may need to be held
against the force to allow the column lock to
release). Clear DTC, repeatedly lock and unlock car
using the key fob and retest
If fault persists, complete a CAN network integrity
test using the manufacturers approved diagnostic
system. Alternatively, refer to the electrical circuit
diagrams and check CAN circuits between the central
junction box, the instrument cluster and the
electronic steering column lock. Refer to the electrical
circuit diagrams and check the central junction box,
the instrument cluster and the electronic steering
column lock power and ground supply circuits for short
circuit to ground, short circuit to power, open circuit,
high resistance. Repair circuit(s) as required. Clear
DTC, perform an on demand self-test and retest
If fault persists, check and install a new electric
steering column lock control module as required B102487 Start Control Unit
Smart card docking station
failure - slave node not
responding Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check the smart card docking
station LIN circuit for short, open circuit. Suspect the smart
card docking station, check and install a new docking station
as required, refer to the new module/component installation
note at the top of the DTC Index B104611
Front Fog Lamp
Control Switch
Fog lamp switch circuit - short
to ground Refer to the electrical circuit diagrams and check fog lamp
switch circuit for short to ground B104615
Front Fog Lamp
Control Switch
Fog lamp switch circuit - short
to power, open circuit Refer to the electrical circuit diagrams and check fog lamp
switch circuit for short to power, open circuit B104811
Brake Fluid Level
Switch
Brake fluid level switch circuit
- short to ground Refer to the electrical circuit diagrams and check brake fluid
level switch circuit for short to ground B10A011
Wiper/ Washer
Switch
Wash/wipe circuit - short to
ground Refer to the electrical circuit diagrams and check wash/wipe
circuit for short to ground B10A015
Wiper/ Washer
Switch
Wash/wipe circuit - short to
power, open circuit Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check wash/wipe circuit for
short to power, open circuit B10A611 Main Light Switch
Master lighting switch circuit -
short to ground Refer to the electrical circuit diagrams and check master
lighting switch circuit for short to ground B10A615 Main Light Switch
Master lighting switch circuit -
short to power, open circuit Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check master lighting switch
circuit for short to power, open circuit B112B87
Steering Wheel
Module
Steering wheel module failure
- slave node not responding Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check the clockspring LIN
circuit for short, open circuit. Suspect the clockspring, check
and install a new clockspring as required, refer to the new
module/component installation note at the top of the DTC
Index B115C7A
Transfer Fuel
Pump
Fuel pump system fault Check for fuel system jet pump or jet pump fuel level sensor
fault B1A8515
Ambient Light
Sensor
Autolamp sensor circuit - short
to power, open circuit Carry out any pinpoint tests associated with this DTC using
the manufacturer approved diagnostic system. Refer to the
electrical circuit diagrams and check autolamp sensor circuit
for short to power, open circuit

NO SPEECH
DETECTED None
Jaguar Voice system is expecting a voice
command . Repeat required voice command. STORING None
Jaguar Voice system is storing input telephone information. None COMMAND
CANCELLED None
Jaguar Voice button has been pressed
and held. Previous command cancelled. SEARCHING None
Jaguar Voice system is searching for requested information from phone book. None HOLD BUTTON TO CANCEL None
Jaguar Voice system has requested a
command to be cancelled. None FUEL LEVEL LOW
Amber warning triangle
illuminated LCD. Fuel level in fuel tank has fallen below
low fuel warning limit. Replenish fuel tank. FUEL PUMP
SYSTEM FAULT Amber warning triangle
illuminated LCD. Fuel pump or FPDM fault has occurred.
Investigate cause of fault. Interrogate
ECM for faults and diagnose using an approved Jaguar Diagnostic System. WASHER FLUID
LOW Amber warning triangle
illuminated LCD. Fluid level has fallen below low level
switch in windshield washer reservoir. Replenish reservoir. DOOR OPEN
Red text is illuminated in
LCD and vehicle view Door is open or incorrectly closed. Close open door. showing open luggage
compartment lid is
displayed. BOOT OPEN
Red text is illuminated in
LCD and vehicle view Luggage compartment lid is open or incorrectly closed. Close open luggage compartment lid. showing open door location
is displayed. COLUMN ADJUST None
Manual column adjust has been selected
on steering column adjustment switch. None COLUMN ADJUST
AUTO None
Automatic column adjust has been
selected on steering column adjustment
switch. None MEMORY 1 / 2 / 3 / 4 SETTINGS
RECALLED None
Memory button has been pressed to
recall memory positions for seat, steering column and mirrors. None MEMORY 1 / 2 / 3 / 4 SETTINGS
SAVED None
Memory has been saved for one of the
memory button positions. None SEAT BELT
MINDER None
Engine has been started and driver
and/or front passenger seat belt has not
been fastened. Fasten seat belt(s). CHECK
PEDESTRIAN
SYSTEM Red warning triangle
illuminated in LCD. A fault has occurred with the pedestrian
protection system. Investigate cause of fault. Interrogate
pedestrian protection system control
module for faults and diagnose using
an approved Jaguar Diagnostic System. INERTIA SWITCH TRIPPED Amber warning triangle
illuminated LCD. Message appears when the crash status
signal from the RCM (restraints control
module) changes to crash detected or a
fault in the restraints system prevents
the message from being transmitted. RCM can be rest with an ignition on/off cycle. If fault has occurred, then
investigate cause of fault and
interrogate the RCM for faults and diagnose using an approved Jaguar
Diagnostic System. VALET MODE None
Confirmation that valet mode has been
entered. None VEHICLE ARMED None
Confirmation that alarm and
immobilization has been achieved. None SMART KEY NOT
FOUND PLEASE
INSERT IN SLOT Red warning triangle
illuminated in LCD. Smart key has not been detected by the
passive system inside the vehicle. Smart key not present in vehicle. May
be caused by a flat smart key battery.
Replace internal battery in smart key.
May also be due to a communications problem. CHECK SMART
KEY None The smart key detected is not the
correct smart key for the vehicle. Use the correct smart key coded to the
vehicle. REMOVE SMART
KEY None
Smart key is in the start control module
and has been recognized by the passive
start system. Remove smart key from the start
control module. SMART KEY
BATTERY LOW None
Battery voltage in smart key is
becoming low, resulting in a decrease in
effective range of the smart key
transmitter. Replace smart key internal battery. PRESS BRAKE
WHEN STARTING None The stop/start button has been pressed
without the brake pedal depressed. This
will turn on the ignition power mode 6. To start engine, press brake pedal,
then press stop/start button. GEARBOX NOT IN
PARK None The transmission is not in the 'park'
position. Engine starting will be prohibited until 'park' is selected. Put transmission in the park position. www.JagDocs.com

DTC Description Possible Cause Action B115B11 Driver Seat Heater
Driver seat heater supply circuit
- short to ground Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check driver
seat heater supply circuit for short to ground B115B15 Driver Seat Heater
Driver seat heater supply circuit
- short to power, open circuit Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check driver
seat heater supply circuit for short to power, open circuit B117513
Driver Door Ajar
Switch
Driver door ajar switch signal
circuit - open circuit Refer to the electrical circuit diagrams and check driver
door ajar switch signal circuit for open circuit B117613
Passenger Door
Ajar Switch
Passenger door ajar switch
signal circuit - open circuit Refer to the electrical circuit diagrams and check
passenger door ajar switch signal circuit for open circuit B117712
Screenwash Level
Switch
Screenwash level switch signal
circuit - short to power Refer to the electrical circuit diagrams and check
screenwash level switch signal circuit for short to power B11C013
Driver Side Rear
Door Ajar Switch
Left rear door ajar switch signal
circuit - open circuit Refer to the electrical circuit diagrams and check left rear
door ajar switch signal circuit for open circuit B11C113
Passenger Side
Rear Door Ajar
Switch
Right rear door ajar switch
signal circuit - open circuit Refer to the electrical circuit diagrams and check right
rear door ajar switch signal circuit for open circuit B122223
Master Lock/Unlock
Switch
Master lock or unlock switch
digital input circuit - signal
stuck low Refer to the electrical circuit diagrams and check master
lock and unlock switch digital input circuits for short to
ground, open circuit B123711
Gear Shift Module
Early Wake-up
Transmission shift module
wake-up control circuit - short
to ground Carry out any pinpoint tests associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
transmission shift module wake-up control circuit for
short to ground B123712
Gear Shift Module
Early Wake-up
Transmission shift module
wake-up control circuit - short
to power Refer to the electrical circuit diagrams and check
transmission shift module wake-up control circuit for
short to power B123713
Gear Shift Module
Early Wake-up
Transmission shift module
wake-up control circuit - open
circuit Refer to the electrical circuit diagrams and check
transmission shift module wake-up control circuit for
open circuit B123E13 Crank Enable
OK to crank signal circuit -
open circuit Refer to the electrical circuit diagrams and check OK to
crank signal circuit for open circuit B1A8596
Ambient Light
Sensor
Light sensor internal electronic
failure Check and install a new sensor as required B1C4513
Front Wiper Park
Position Switch
Windshield wiper motor park
switch signal circuit - open
circuit Refer to the electrical circuit diagrams and check
windshield wiper motor park switch signal circuit for open
circuit B1C4523
Front Wiper Park
Position Switch
Signal stuck low Refer to the electrical circuit diagrams and check front
wiper park position switch input circuit for short, open
circuit B1C7812 Powerwash Relay
Powerwash relay control circuit
- short to power Refer to the electrical circuit diagrams and check
powerwash relay control circuit for short to power B1C7814 Powerwash Relay
Powerwash relay control circuit
- short to ground, open circuit Refer to the electrical circuit diagrams and check
powerwash relay control circuit for short to ground, open
circuit B1C7911 Front Washer Pump
Screenwash pump control
circuit - short to ground Refer to the electrical circuit diagrams and check
screenwash pump control circuit for short to ground