2010 JAGUAR XFR ECU

Published: 17-Apr-2014
General Information - Diagnostic Trouble Code (DTC) Index DTC: Adaptive
Damping Module (SUMB)
Description and Operation

Adaptive Damping Module (SUMB)


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 the 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 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

he table below lists all diagnostic trouble codes (DTCs) that could be logged in the adaptive damping module, for additional
diagnosis and testing information refer to the relevant diagnosis and testing section
For additional information, refer to: Vehicle Dynamic Suspension (204-05 Vehicle Dynamic Suspension, Diagnosis and Testing).

DTC Description Possible Causes Action C101D-12
Left Front
vertical
acceleration
sensor - Short
to power
Left Front vertical
acceleration sensor
circuit short to power
Refer to the electrical circuit diagrams and check left front
vertical acceleration sensor circuit for short to power or
another circuit. Repair circuit, clear the DTC and retest the
system C101D-14
Left Front
vertical
acceleration
sensor - Short
to ground, open
circuit
Left Front vertical
acceleration sensor
circuit short to
ground, open circuit
Vertical acceleration
sensor fault
Refer to the electrical circuit diagrams and check front vertical
acceleration sensor circuit for short to ground, open circuit. If
no fault found on wiring suspect sensor. Replace sensor, clear
DTC and retest the system C101D-22
Left Front
vertical
acceleration
sensor - Signal
amplitude >
maximum
Left front vertical
acceleration sensor
insecurely mounted
Left front vertical
acceleration sensor
signal circuit short to
another circuit
Left front vertical
acceleration sensor
With vehicle parked on a level surface, read Left Front Vertical
Accelerometer voltage and check it lies in range 1.9 to 2.1
volts. If not OK then check electrical wiring for shorts, loose
connections and repair as required. If wiring OK then suspect
faulty sensor/incorrectly fitted sensor. Check the sensor is
correctly mounted, secure or replace sensor as required. Refer
to the new module/component installation note at the top of
the DTC Index, clear DTC and retest system

DTC Description Possible Causes Action internal fault
C101D-26
Left Front
vertical
acceleration
sensor - Signal
rate of change
below threshold
Left front vertical
acceleration sensor
signal circuit short to
another circuit
Left front vertical
acceleration sensor
internal fault
Refer to the electrical circuit diagrams and check Left Front
Vertical Accelerometer signal circuit for faults, if circuit is
correct suspect faulty sensor, refer to the new
module/component installation note at the top of the DTC
Index. Replace the sensor, clear the DTC and retest the
system C101D-78
Left Front
vertical
acceleration
sensor -
Alignment or
adjustment
incorrect
Left front vertical
acceleration sensor
bracket bent
Left front vertical
acceleration sensor
damaged
Check Left Front Vertical Accelerometer for location and
security, if correct suspect faulty Accelerometer, refer to the
new module installation note at the top of the DTC Index.
Replace the sensor/bracket as required, clear the DTC and
retest the system C101E-12
Right Front
vertical
acceleration
sensor - Short
to power
Right Front vertical
acceleration sensor
circuit short to power
Refer to the electrical circuit diagrams and check right front
vertical acceleration sensor circuit for short to power or
another circuit. Repair circuit, clear the DTC and retest the
system C101E-14
Right Front
vertical
acceleration
sensor - Short
to ground, open
circuit
Right Front vertical
acceleration sensor
circuit short to
ground, open circuit
Vertical acceleration
sensor fault
Refer to the electrical circuit diagrams and check right front
vertical acceleration sensor circuit for short to ground, open
circuit. If no fault found on wiring suspect sensor. Replace
sensor, clear DTC and retest the system C101E-22
Right Front
vertical
acceleration
sensor - Signal
amplitude >
maximum
Right front vertical
acceleration sensor
insecurely mounted
Right front vertical
acceleration sensor
signal circuit short to
another circuit
Right front vertical
acceleration sensor
internal fault
With vehicle parked on a level surface, read Right Front
Vertical Accelerometer voltage and check it lies in range 1.9 to
2.1 volts. If not OK then check electrical wiring for shorts,
loose connections and repair as required. If wiring OK then
suspect faulty sensor/incorrectly fitted sensor. Check the
sensor is correctly mounted, secure or replace sensor as
required. Refer to the new module/component installation
note at the top of the DTC Index, clear DTC and retest system C101E-26
Right Front
vertical
acceleration
sensor - Signal
rate of change
below threshold
Right front vertical
acceleration sensor
signal circuit short to
another circuit
Right front vertical
acceleration sensor
internal fault
Refer to the electrical circuit diagrams and check Right Front
Vertical Accelerometer signal circuit for faults, if circuit is
correct suspect faulty sensor, refer to the new
module/component installation note at the top of the DTC
Index. Replace the sensor, clear the DTC and retest the
system C101E-78 Right Front
Right front vertical
Check Right Front Vertical Accelerometer for location and vertical acceleration acceleration sensor security, if correct suspect faulty Accelerometer, refer to the sensor - bracket bent new module installation note at the top of the DTC Index. Alignment or Right front vertical Replace the sensor/bracket as required, clear the DTC and adjustment acceleration sensor retest the system incorrect damaged C1024-00
System Temporarily
Disabled Due To
Power
Interruption
During Driving -
No sub type
information
Loss of power to
control module whilst
driving
Refer to the electrical circuit diagrams and check power and
ground circuits to Adaptive Damping Control Module for
intermittent or poor connection. Repair wiring circuits as
required, clear DTC and retest the system C1030-12
Left Rear
vertical
acceleration
sensor - Short
to power
Left Rear vertical
acceleration sensor
circuit short to power
Refer to the electrical circuit diagrams and check left Rear
vertical acceleration sensor circuit for short to power or
another circuit. Repair circuit, clear the DTC and retest the
system

DTC Description Possible Causes Action C1030-14
Left Rear
vertical
acceleration
sensor - Short
to ground, open
circuit
Left rear vertical
acceleration sensor
circuit short to
ground, open circuit
Vertical acceleration
sensor fault
Refer to the electrical circuit diagrams and check left Rear
vertical acceleration sensor circuit for short to ground, open
circuit. If no fault found on wiring suspect sensor. Replace
sensor, clear DTC and retest the system C1030-22
Left Rear
vertical
acceleration
sensor - Signal
amplitude >
maximum
Left Rear vertical
acceleration sensor
insecurely mounted
Left Rear vertical
acceleration sensor
signal circuit short to
another circuit
Left Rear vertical
acceleration sensor
internal fault
With vehicle parked on a level surface, read Left Rear Vertical
Accelerometer voltage and check it lies in range 1.9 to 2.1
volts. If not OK then check electrical wiring for shorts, loose
connections and repair as required. If wiring OK then suspect
faulty sensor/incorrectly fitted sensor. Check the sensor is
correctly mounted, secure or replace sensor as required. Refer
to the new module/component installation note at the top of
the DTC Index, clear DTC and retest system C1030-26
Left Rear
vertical
acceleration
sensor - Signal
rate of change
below threshold
Left Rear vertical
acceleration sensor
signal circuit short to
another circuit
Left Rear vertical
acceleration sensor
internal fault
Refer to the electrical circuit diagrams and check Left Rear
Vertical Accelerometer signal circuit for faults, if circuit is
correct suspect faulty sensor, refer to the new
module/component installation note at the top of the DTC
Index. Replace the sensor, clear the DTC and retest the
system C1030-78
Left Rear
vertical
acceleration
sensor -
Alignment or
adjustment
incorrect
Left Rear vertical
acceleration sensor
bracket bent
Left Rear vertical
acceleration sensor
damaged
Check Left Rear Vertical Accelerometer for location and
security, if correct suspect faulty Accelerometer, refer to the
new module installation note at the top of the DTC Index.
Replace the sensor/bracket as required, clear the DTC and
retest the system C1A03-12
Left Front
Height Sensor -
Circuit short to
power
Height sensor circuit
shorted to another
cable
Height sensor internal
fault
Refer to the electrical circuit diagrams and check Front Left
Height Sensor circuit for short to power, If circuit correct
suspect Sensor internal fault, replace as required C1A03-14
Left Front
Height Sensor -
Circuit short to
ground or open
Wiring to sensor
(signal) open circuit
Wiring to height
sensor partial short to
ground
Wiring to height
sensor short to other
cable
Height sensor internal
electrical fault
Disconnect electrical connector to height sensor and inspect
connector pins & terminals for evidence of corrosion or water
ingress. If no corrosion found, disconnect harness at Control
Module. A: Check for short circuits between any of the 3
terminals and vehicle ground. B: Check for electrical continuity
between the two connectors for each of the 3 terminals.
Reconnect electrical connector at Control Module only. C:
Check voltages at terminals within height sensor connector
(sensor not connected), with respect to vehicle body. •
Voltage to sensor ground connection should be ~0v • Voltage
to sensor signal connection should be ~0v • Voltage to sensor
supply connection should be ~5v All voltages should be within
± 0.15v C1A03-21
Left Front
Height Sensor -
Signal amplitude
< minimum
Height sensor linkage
not connected
Height sensor or
bracket loose
Height sensor bracket
bent
Incorrect height
calibration
Height sensor linkage
toggled
Height sensor water
ingress
Wiring to height
sensor partial short to
ground
Wiring to height
sensor short to other
cable
Height sensor
Inspect for damage or loose fixings. NOTE If any height
sensor fixings were slackened or found to be loose or if a
height sensor was changed, the vehicle ride height MUST be
re-calibrated. Confirm that the correct height sensor part
number is fitted, as specified in the service parts database.
To check height sensor: Disconnect electrical connector to
height sensor and inspect connecter pins & terminals for
evidence of corrosion or water ingress. If no corrosion found,
disconnect harness at Control Module. A: Check for short
circuits between any of the 3 terminals and vehicle ground. B:
Check for electrical continuity between the two connectors for
each of the 3 terminals. Reconnect electrical connector at
Control Module only. C: Check voltages at terminals within
height sensor connector (sensor not connected), with respect
to vehicle body. • Voltage to sensor ground connection should
be ~0v • Voltage to sensor signal connection should be ~0v •
Voltage to sensor supply connection should be ~5v All
voltages should be within ± 0.15v. To check sensor operation
on the vehicle: Check for water ingress around the height

DTC Description Possible Causes Action U3000-47
Control Module -
Watchdog/safety
microcontroller failure
Control module internal
watchdog/safety
MicroController failure
Refer to the electrical circuit diagrams and check
the power and ground circuits to the component.
Refer to the warranty policy and procedures
manual if a module is suspect U3000-49
Control Module - Internal
electronic failure
Control module internal
electronic failure (internal
error)
Clear DTC, cycle ignition and retest. If fault
persists, refer to the electrical circuit diagrams
and check the power and ground circuits to the
component. Repair as required, clear DTC and
retest
If fault persists, check and install a new
blindspot monitoring control module as required.
Refer to the warranty policy and procedures
manual if a module is suspect U3003-62
Battery Voltage - Signal
compare failure
Mis-match in battery
voltage, between Central
Junction Box and Blind
Spot Monitoring System
module, of 2 volts or more
Check the module connector for security and
integrity. Refer to the electrical circuit diagrams
and check the Control module supply voltage.
Check vehicle battery voltage and state of
charge. Check the power signal line to the
module

DTC Description Possible Causes Action B1145-11
Glovebox Locking
Motor - Circuit short to
ground
Glovebox latch locking motor
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 glovebox latch locking motor circuit for
short to ground B1145-12
Glovebox Locking
Motor - Circuit short to
battery
Glovebox latch locking motor
control circuit - short to
power
Refer to the electrical circuit diagrams and check
glovebox latch locking motor control circuit for
short to power B1145-13
Glovebox Locking
Motor - Circuit open
Glovebox latch locking motor
control circuit - open circuit
Refer to the electrical circuit diagrams and check
glovebox latch locking motor control circuit for
open circuit B1146-12
Passive sounder
Supply - Circuit short
to battery
Security passive sounder
control circuit - short to
power
Refer to the electrical circuit diagrams and check
security passive sounder control circuit for short
to power B1146-14
Passive sounder
Supply - Circuit short
to ground or open
Security passive sounder
control circuit - short to
ground, open circuit
Refer to the electrical circuit diagrams and check
security passive sounder control circuit for short
to ground, open circuit B1158-11
Front Passenger Seat
Heater Sensor - Circuit
short to ground
Front passenger seat heater
sensor 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 front passenger seat heater sensor
circuit for short to ground B1158-13
Front Passenger Seat
Heater Sensor - Circuit
open
Front passenger seat heater
sensor circuit - 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 front passenger seat heater sensor
circuit for open circuit B1159-11
Driver Seat Heater
Sensor - Circuit short
to ground
Driver seat heater sensor
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 sensor circuit for
short to ground B1159-13
Driver Seat Heater
Sensor - Circuit open
Driver seat heater sensor
circuit - 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 sensor circuit for
open circuit B115A-11
Front Passenger Seat
Heater - Circuit short
to ground
Front passenger 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 front passenger seat heater supply
circuit for short to ground B115A-15
Front Passenger Seat
Heater - Circuit short
to battery or open
Front passenger 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 front passenger seat heater supply
circuit for short to power, open circuit B115B-11
Driver Seat Heater -
Circuit short to ground
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

DTC Description Possible Causes Action B117E-72 Front Power Window Up
- Actuator stuck open
Door module internal relay
sticking open
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117E-73 Front Power Window Up
- Actuator stuck closed
Door module internal relay
sticking closed
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117E-92 Front Power Window Up
- Performance or
incorrect operation
Set when auto window up was
interrupted (e.g. by pressing
local switch)
Check the window operation. Clear the DTC
and retest B117F-72
Front Power Window
Down - Actuator stuck
open
Door module internal relay
sticking open
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B117F-73
Front Power Window
Down - Actuator stuck
closed
Door module internal relay
sticking closed
Renew the relevant front door module. Refer
to the warranty policy and procedures
manual if a module is suspect B1189-29
Front Window Position
Sensor - Signal invalid
Missing signal from hall sensor
1 or 2
Sensor circuit fault
Hall sensor fault
Refer to the electrical circuit diagrams and
check the hall sensor circuit between the
door module and window motor. Repair as
necessary. If the problem persists, renew the
window motor B118A-29
Rear Window Position
Sensor - Signal invalid
Missing signal from hall sensor
1 or 2
Sensor circuit fault
Hall sensor fault
Refer to the electrical circuit diagrams and
check the hall sensor circuit between the
door module and window motor. Repair as
necessary. If the problem persists, renew the
window motor B11D1-83
LIN Bus "C" - Value of
signal protection
calculation incorrect
LIN Bus checksum error; driver
switchpack internal fault
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the driver
door window switch and the door module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the driver door
window switch B11D1-86
LIN Bus "C" - Signal
invalid
LIN Bus header error; driver
switchpack internal fault
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the driver
door window switch and the door module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the driver door
window switch B11D1-87
LIN Bus "C" - Missing
message
Slave node communication
missing; driver switchpack
internal fault
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the driver
door window switch and the door module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the driver door
window switch B11F6-11
Driver Folding Mirror
Motor - Circuit short to
ground
Driver folding mirror motor
circuit short circuit to ground
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror fold circuit between the
drivers door module and the mirror assembly.
Repair as necessary B11F6-15
Driver Folding Mirror
Motor - Circuit short to
battery or open
Driver mirror heater output
circuit short circuit to power or
open circuit
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror fold circuit between the
drivers door module and the mirror assembly.
Repair as necessary www.JagDocs.com

DTC Description Possible Causes Action B11F7-11
Passenger Folding Mirror
Motor - Circuit short to
ground
Passenger folding mirror motor
circuit short circuit to ground
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror fold circuit between the
passenger door module and the mirror
assembly. Repair as necessary B11F7-15
Passenger Folding Mirror
Motor - Circuit short to
battery or open
Passenger mirror heater output
circuit short circuit to power or
open circuit
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror fold circuit between the
passenger door module and the mirror
assembly. Repair as necessary B1A98-83
LIN Bus Circuit #1 -
Value of signal
protection calculation
incorrect
Value of signal protection
calculation incorrect
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the rear
door control unit and the Driver Door Module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the rear door control
module B1A98-86
LIN Bus Circuit #1 -
Signal invalid
Signal invalid
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the rear
door control unit and the Driver Door Module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the rear door control
module B1A98-87
LIN Bus Circuit #1 -
Missing message
Missing message
Refer to the electrical circuit diagrams and
check the LIN Bus circuit between the rear
door control unit and the Driver Door Module.
Check the connectors for integrity and
security. Clear the DTC and retest. If the
problem persists, renew the rear door control
module B1C09-11
Driver Left/Right Mirror
Motor Circuit - Circuit
short to ground
Driver mirror adjustment motor
circuit short circuit to ground
Mirror left/right motor failure
Refer to the electrical circuit diagrams and
check the mirror motor circuit between the
drivers door module and the mirror assembly.
Repair as necessary B1C09-15
Driver Left/Right Mirror
Motor Circuit - Circuit
short to battery or open
Driver mirror adjustment motor
circuit short circuit to power or
open circuit
Mirror left/right motor failure
Refer to the electrical circuit diagrams and
check the mirror motor circuit between the
drivers door module and the mirror assembly.
Repair as necessary B1C10-11
Driver Up/Down Mirror
Motor Circuit - Circuit
short to ground
Driver mirror adjustment motor
circuit short circuit to ground
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror motor circuit between the
drivers door module and the mirror assembly.
Repair as necessary B1C10-15
Driver Up/Down Mirror
Motor Circuit - Circuit
short to battery or open
Driver mirror adjustment motor
circuit short circuit to power or
open circuit
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror motor circuit between the
drivers door module and the mirror assembly.
Repair as necessary B1C11-11
Passenger Left/Right
Mirror Motor Circuit -
Circuit short to ground
Passenger mirror adjustment
motor circuit short circuit to
ground
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror motor circuit between the
passenger door module and the mirror
assembly. Repair as necessary B1C11-15
Passenger Left/Right
Mirror Motor Circuit -
Circuit short to battery
or open
Passenger mirror adjustment
motor circuit short circuit to
power or open circuit
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror motor circuit between the
passenger door module and the mirror
assembly. Repair as necessary B1C12-11
Passenger Up/Down
Mirror Motor Circuit -
Circuit short to ground
Passenger mirror adjustment
motor circuit short circuit to
ground
Mirror motor failure
Refer to the electrical circuit diagrams and
check the mirror motor circuit between the
passenger door module and the mirror assembly. Repair as necessary

DTC Description Possible Causes Action B1060-15
Seat Headrest Motor
Output - Circuit short to
battery or open
Driver seat headrest motor
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 headrest motor circuit for short to
power, open circuit B1063-31
Seat Cushion Extension
Motor Speed/Position
Sensor - No signal
Harness/connector problem
No signal from sensor
Sensor/motor malfunction
Check the seat wiring harness/connectors
for security/integrity
Refer to the electrical circuit diagrams and
check the seat cushion motor sensor
circuit. Repair circuit as required. Clear DTC
and retest B1064-31
Seat Headrest Motor
Speed/Position Sensor - No
signal
Harness/connector problem
No signal from sensor
Sensor/motor malfunction
Check the seat wiring harness/connectors
for security/integrity
Refer to the electrical circuit diagrams and
check the seat headrest motor sensor
circuit. Repair circuit as required. Clear DTC
and retest B1065-24
Cushion extend switch -
Signal stuck high
Signal stuck high
Check for a stuck switch. Refer to the
electrical circuit diagrams and check driver
seat switch pack to seat module LIN circuit
for short, open circuit and cushion extend
circuit for short to ground B1066-24
Cushion retract switch -
Signal stuck high
Signal stuck high
Check for a stuck switch. Refer to the
electrical circuit diagrams and check driver
seat switch pack to seat module LIN circuit
for short, open circuit and cushion retract
circuit for short to ground B106D-24
Headrest up switch - Signal
stuck high
Signal stuck high
Check for a stuck switch. Refer to the
electrical circuit diagrams and check driver
seat switch pack to seat module LIN circuit
for short, open circuit and headrest up
circuit for short to ground B106E-24
Headrest down switch -
Signal stuck high
Signal stuck high
Check for a stuck switch. Refer to the
electrical circuit diagrams and check driver
seat switch pack to seat module LIN circuit
for short, open circuit and headrest down
circuit for short to ground B1A98-83
LIN Bus Circuit #1 - Value
of signal protection
calculation incorrect
Value of signal protection
calculation incorrect
Check LIN network for interference/EMC
related issues B1A98-86
LIN Bus Circuit #1 - Signal
invalid
LIN bus Header error
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Check LIN
network for interference/EMC related
issues B1A98-87
LIN Bus Circuit #1 -
Missing message
Slave node communication
missing. LIN bus circuit - short
to ground, power, open circuit
(ECU Types 7 & 8)
Refer to electrical circuit diagrams and test
LIN Bus between seat switch pack and
control module for short to ground, power,
open circuit, check power and ground
supplies to switch pack B1A98-88 LIN Bus Circuit #1 - Bus off
Bus off
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system. Refer to
electrical circuit diagrams and test LIN Bus
between seat switch pack and control
module for short to ground or power