Jaguar XJ (X350). Service manual — part 240
GROUND or B+
•
Yaw rate/lateral
accelerometer sensor
cluster failure
C1280
Yaw rate sensor signal
failure
•
Sensor loose, not mounted
correctly
•
Yaw rate/lateral
accelerometer sensor
cluster failure
Refer to visual inspection
chart. Check sensor fitment.
Refer to dealer technical
support for advice on possible
sensor failure.
C1281
Lateral accelerometer
sensor circuit failure
•
Connector pins bent or
corroded
•
Sensor wiring damaged
•
Yaw rate/lateral
accelerometer sensor
cluster failure
For lateral/yaw rate sensor
circuit tests, GO to Pinpoint
Test
G307559p7
.
C1282
Lateral accelerometer
sensor signal failure
•
Sensor loose, not mounted
correctly
•
Yaw rate/lateral
accelerometer sensor
cluster failure
Refer to visual inspection
chart. Check sensor fitment.
Refer to dealer technical
support for advice on possible
sensor failure.
C1285
Booster solenoid circuit
failure
•
Booster solenoid circuit
open circuit, short circuit to
GROUND
•
Booster solenoid failure
For booster solenoid circuit
tests, GO to Pinpoint Test
G307559p8
.
C1286
Booster mechanical
failure
•
Brake light switch
incorrectly calibrated
•
Pedal force switch open
circuit, short circuit to
GROUND
•
Pedal force switch failure
•
Active brake booster
mechanical failure
•
ABS/DSC module failure
Contact dealer technical
support for advice on brake
pedal position switch
calibration procedure. For
pedal force switch tests, GO to
Pinpoint Test
G307559p10
.
Contact dealer technical
support for advice on possible
active brake booster or
ABS/DSC module failure.
C1287
Booster pedal force
switch circuit failure
•
Booster pedal force switch
open circuit, short circuit to
GROUND or B+
•
Booster pedal force switch
failure
For pedal force switch tests,
GO to Pinpoint Test
G307559p10
.
C1288
Pressure sensor
main/primary input
circuit failure
•
Brake pressure circuit open
circuit, short circuit to
GROUND or B+
•
Connector pins bent or
corroded
•
Damaged harness/wiring
•
Sensor failure
•
ABS/DSC module failure
For pressure sensor circuit
tests, GO to Pinpoint Test
G307559p11
.
C1295
Steering angle sensor
internal failure
•
Steering angle signal open
circuit, short circuit to
GROUND or B+, high
resistance
•
Sensor loose
•
Encoder ring contaminated
•
Sensor failure
For SA sensor circuit tests, GO
to Pinpoint Test
G307559p6
.
Check sensor fitment, check
encoder ring for debris.
C1306
Steering angle sensor–
no center found during
initialization
•
Steering angle sensor — no
center found within time
limits
Check for associated DTCs.
Reinitialize the sensor by
turning the ignition to the OFF
position, then back ON without
turning the steering wheel.
C1307
Steering wheel angle
sensor encoder ring
failure
•
Loose or damaged encoder
ring
•
Steering angle sensor failure
•
Signal wires shorted
together
Check the security and
condition of the steering angle
sensor encoder ring. Check
encoder ring for debris. For SA
sensor circuit tests, GO to
Pinpoint Test
G307559p6
.
C1440
Brake pressure sensor
signal fault
•
Pressure sensor signal
circuit open circuit, short
circuit to GROUND or B+
•
Brake pressure sensor
failure
For pressure sensor circuit
tests, GO to Pinpoint Test
G307559p11
.
C1446
Brake switch circuit
failure
•
Brake light switch signal
failure
•
Mechanical switch failure
For brake light switch circuit
tests, GO to Pinpoint Test
G307559p12
.
C1730
Sensor supply voltage
out of range (+5 volt)
•
Sensor supply voltage circuit
short circuit to GROUND or
B+
•
Defective sensor
•
ABS/DSC module failure
For sensor power and
GROUND circuit tests,
<<418-
00>>
Contact dealer technical
support for advice on possible
ABS/DSC module failure.
www.
C1777
Vacuum pressure
circuit failure
•
Mechanical failure in active
booster unit
•
ABS/DSC module failure
CLEAR the DTC. TEST the
system for normal operation. If
the DTC is repeated, contact
dealer technical support for
advice on possible active
booster or ABS/DSC module
failure.
C1994
DSC continuous
operation fault
•
Yaw rate sensor cluster
failure
Contact dealer technical
support for advice on possible
yaw rate sensor cluster failure.
C1997
Pressure controller
failure
•
Booster solenoid
open/short circuit, short
circuit to GROUND or B+,
high resistance
•
Booster solenoid failure
•
Pressure sensor signal
open/short circuit, short
circuit to GROUND or B+,
high resistance
•
Pressure sensor failure
For booster solenoid circuit
tests, GO to Pinpoint Test
G307559p8
.
For pressure sensor circuit
tests, GO to Pinpoint Test
G307559p11
.
C2778
Yaw rate/Lateral
accelerometer sensor
cluster power supply
failure
•
Sensor power supply
voltage open circuit, short
circuit to GROUND or B+
•
ABS/DSC module failure
For lateral/yaw rate sensor
circuit tests, GO to Pinpoint
Test
G307559p7
.
Contact dealer technical
support for advice on possible
ABS/DSC module failure.
C2783 Sensor cluster incorrect
•
Incorrect yaw rate/lateral
accelerometer sensor
cluster fitted
Contact dealer technical
support for advice on possible
yaw rate sensor cluster failure.
C2785
Yaw rate/Lateral
accelerometer
sensor(s) out of
calibration
•
Yaw rate/Lateral
accelerometer sensor
cluster not calibrated
Contact dealer technical
support for advice on
recalibration of the yaw rate
sensor cluster.
B1231
Longitudinal
acceleration threshold
exceeded
•
Check brake
hydraulic/mechanical
function/condition
•
Pressure sensor failure
•
ACC failure
•
Hydraulic unit failure
•
Mechanical failure in
booster actuation unit
Carry out a full vehicle DTC
check. Check for DTC P1696 as
an indication of an ACC system
fault. For pressure sensor
circuit tests, GO to Pinpoint
Test
G307559p11
.
For vacuum circuit tests refer
•
Brake booster vacuum low
•
Brake booster failure
to inspection and verification.
Contact dealer technical
support for further advice.
B1317
Supply voltage out of
range (HIGH)
•
Charging system failure
•
ABS/DSC module GROUND
fault
Check the battery condition
and charging system,
<<414-
00>>
B1318
Supply voltage out of
range (LOW)
•
Battery failure, loose
connections
•
Charging system failure
•
ABS/DSC module positive
supply fault
Check the battery condition
and charging system,
<<414-
00>>
B1342
ABC/DSC module
failure
•
ABS/DSC module failure
Contact dealer technical
support for advice on possible
ABS/DSC module failure
B2141
NVM configuration
failure
•
No or invalid vehicle
configuration information
received from the ECM and
stored in EEPROM
Reconfigure the ECM
<<418-
00>>
B2736
Pedal travel sensor
circuit failure
•
Pedal travel sensor circuit:
open circuit, short circuit to
GROUND or B+, high
resistance, signal wires
short circuit to each other
For pedal travel sensor tests,
GO to Pinpoint Test
G307559p9
.
B2739
Pedal travel sensor
signal circuit failure
•
Connector pins bent or
corroded
•
Pedal travel sensor signal
failure; open circuit, short
circuit to GROUND or B+,
high resistance
•
Pedal travel sensor failure
•
ABS/DSC module failure
For pedal travel sensor tests,
GO to Pinpoint Test
G307559p9
.
B2741
Yaw rate/Lateral
accelerometer sensor
cluster fault
•
Yaw rate/Lateral
accelerometer sensor
cluster failure
Contact dealer technical
support for advice on possible
yaw rate sensor failure.
U1901
Local CAN yaw
rate/lateral
accelerometer sensor
cluster communication
•
Local CAN fault
•
Control module internal
local CAN failure
•
Yaw rate/Lateral
accelerometer sensor
For CAN module circuit tests,
technical support for advice on
possible yaw rate sensor
www.
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