Frelander 2. Manual — part 27
DTC
Description
Possible Cause
Action
B1086-77 Air distribution damper
motor mechanical failures -
Commanded position not
reachable
Obstruction in flap
movement
Range greater than
expected default
Clear obstruction from flap. Clear the DTC and
retest. If the problem persists, remove the defrost
vent/register blend door actuator and check the
blend flap operation
B1086-87 Air distribution damper
motor bus signal/message
failures - Missing message
LIN Bus fault
Actuator fault
Refer to the electrical circuit diagrams and check
the face/feet air distribution door motor LIN Bus
circuit, power and ground supply circuits for short
circuit to ground, short circuit to power, open
circuit, high resistance
B1087-4A LIN bus A system internal
failures - Incorrect
component installed
Incorrect module installed
Incorrect car configuration
data being transmitted
Ensure correct module is installed. Check and
correct car configuration file using manufacturer
approved diagnostic system
B1087-54 LIN bus A system
programming failures -
Missing calibration
LIN systems calibration
routine failed
Run LIN systems calibration routine and clear DTC
using manufacturer approved diagnostic system
B1087-83 LIN bus A bus
signal/message failures -
Value of signal protection
calculation incorrect
Possible fault with one or
more LIN nodes
Clear DTC and monitor for re-occurrence
B1087-86 LIN bus A bus
signal/message failures -
Signal invalid
Incorrect stepper motor/s
installed
Run LIN Arbitration routine using manufacturer
approved diagnostic system. Carry out pinpoint
tests associated with this DTC using the
manufacturer approved diagnostic system
B1087-88 LIN bus A bus
signal/message failures -
Bus off
LIN Bus A circuit - short
to ground, power
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
B1088-4A LIN bus B system internal
failures - Incorrect
component installed
Incorrect module installed
Incorrect car configuration
data being transmitted by
central junction box
Ensure correct module is installed. Check and
correct car configuration file using manufacturer
approved diagnostic system
B1088-83 LIN bus B bus
signal/message failures -
Value of signal protection
calculation incorrect
Possible fault with one or
more LIN Nodes
Clear DTC and monitor for re-occurrence
B1088-86 LIN bus B bus
signal/message failures -
Signal invalid
Incorrect stepper motor/s
installed
Run LIN Arbitration routine using manufacturer
approved diagnostic system. Carry out pinpoint
tests associated with this DTC using the
manufacturer approved diagnostic system
B1088-88 LIN bus B bus
signal/message failures -
Bus off
LIN Bus B circuit - short
to ground, power
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
B10B9-11 Blower control general
electrical failures - Circuit
short to ground
Blower Control circuit -
short to ground
Refer to electrical circuit diagrams and check
Blower Control circuit for short to ground
B10B9-12 Blower control general
electrical failures - Circuit
short to battery
Blower Control circuit -
short to power
Refer to electrical circuit diagrams and check
Blower Control circuit for short to power
B10B9-13 Blower control general
electrical failures - Circuit
open
Blower control circuit -
open circuit
This DTC will only log in validation mode. No help
text required
B1A61-11 Cabin temperature sensor
general electrical failures -
Circuit short to ground
In-vehicle temperature
sensor circuit - short to
ground
Refer to electrical circuit diagrams and check
In-vehicle temperature sensor circuit for short to
ground
B1A61-15 Cabin temperature sensor
general electrical failures -
Circuit short to battery or
open
In-vehicle temperature
sensor circuit - short to
power or open circuit
Refer to electrical circuit diagrams and check
In-vehicle temperature sensor circuit for short to
power or open circuit
B1A69-09 Humidity sensor general
failure information -
Component failures
Internal sensor failure
Install a new rear view mirror/humidity sensor
B1A69-87 Humidity sensor bus
signal/message failures -
Missing message
Senor disconnected, open
circuit
Refer to the electrical circuit diagrams and check
humidity sensor circuit for short circuit to ground,
short circuit to power, open circuit
B1B71-11 Evaporator temperature
sensor general electrical
failures - Circuit short to
ground
Evaporator temperature
sensor circuit - short to
ground
Refer to electrical circuit diagrams and check
Evaporator temperature sensor circuit for short to
ground
B1B71-15 Evaporator temperature
sensor general electrical
failures - Circuit short to
battery or open
Evaporator temperature
sensor circuit - short to
power or open circuit
Refer to electrical circuit diagrams and check
Evaporator temperature sensor circuit for short to
power or open circuit
U0010-00 Medium speed CAN
communication bus - No
sub type information
Medium speed CAN bus
off
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
U0140-00 Lost communication with
central electronic module
general failure information
- No sub type information
Missing message
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
DTC
Description
Possible Cause
Action
U0156-00 Lost communication with
infotainment control
module general failure
information - No sub type
information
Missing message
Carry out CAN network integrity tests using the
manufacturer approved diagnostic system
U0300-00 Internal control module
software incompatibility
general failure information
- No sub type information
Invalid configuration
message is received
Re-configure the central junction box using the
manufacturer approved diagnostic system. Clear
the DTC and retest. If the DTC is still logged
suspect the climate control module, refer to the
new module/component installation note at the
top of the DTC Index
U2002-23 Switch general signal
failures - Signal stuck low
Switch stuck
Check finisher around module for correct
installation
U2101-00 Control module
configuration incompatible
general failure information
- No sub type information
Incorrect car configuration
data being transmitted by
central junction box
Check and correct car configuration file using
manufacturer approved diagnostic system
U3000-41 Control module system
internal failures - General
checksum error
Internal micro controller
error
Checksum error
Install a new climate control module, refer to new
module/component installation note at top of DTC
Index
U3003-62 Battery voltage algorithm
based failures - Signal
compare failure
Mis-match in battery
voltage, of 2 volts or
more, between climate
control module and
central junction box
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
General Information - Diagnostic Trouble Code (DTC) IndexDTC:
Infotainment Control Module (ICM) - High Line
Description and Operation
• NOTE: If a control module or 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 program is in operation, before
the replacement of a component.
• NOTE: 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).
• NOTE: When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to three decimal
places, and with an up-to-date calibration certificate. W hen testing resistance always take the resistance of the DMM
leads into account.
• NOTE: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
• NOTE: Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
• NOTE: 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.
Description And Operation
For a detailed description of the infotainment control system, refer to the relevant Description and Operation section in the
workshop manual.
For additional information, refer to:
Audio System
(415-01 Information and Entertainment System, Description and
Operation).
Infotainment Control Module (High Line) (ICM)
DTC
Description
Possible Cause
Action
B101C-11 Seek up switch
Seek up switch circuit - short
to ground
Refer to electrical circuit diagrams and check seek
up switch circuit for short to ground
B101D-11 Seek down switch
Seek down switch circuit -
short to ground
Refer to electrical circuit diagrams and check seek
down switch circuit for short to ground
B101F-11 Eject switch
Eject switch circuit - short to
ground
Refer to electrical circuit diagrams and check
eject switch circuit for short to ground
B1022-11 Audio On/Off switch
Audio On/Off switch circuit -
short to ground
Refer to electrical circuit diagrams and check
audio on/off switch circuit for short to ground
B104A-11 Button 1
Button 1 circuit - short to
ground
Refer to electrical circuit diagrams and check
Button 1 circuit for short to ground
B104B-11 Button 2
Button 2 circuit - short to
ground
Refer to electrical circuit diagrams and check
Button 2 circuit for short to ground
B104C-11 Button 3
Button 3 circuit - short to
ground
Refer to electrical circuit diagrams and check
Button 3 circuit for short to ground
B104D-11 Button 4
Button 4 circuit - short to
ground
Refer to electrical circuit diagrams and check
Button 4 circuit for short to ground
B104E-11 Button 5
Button 5 circuit - short to
ground
Refer to electrical circuit diagrams and check
Button 5 circuit for short to ground
B11A6-11 FM button
FM button circuit - short to
ground
Refer to electrical circuit diagrams and check FM
button circuit for short to ground
B11A7-11 AM button
AM button circuit - short to
ground
Refer to electrical circuit diagrams and check AM
button circuit for short to ground
B11A8-11 CD button
CD button circuit - short to
ground
Refer to electrical circuit diagrams and check CD
button circuit for short to ground
B11A911 Tone button
Tone button circuit - short to
ground
Refer to electrical circuit diagrams and check tone
button circuit for short to ground
B11AA-11 Skip up button
Skip up button circuit - short to
ground
Refer to electrical circuit diagrams and check skip
up button circuit for short to ground
B11AB-11 Skip down button
Skip down button circuit - short
to ground
Refer to electrical circuit diagrams and check skip
down button circuit for short to ground
B11AC-11 Enter button
Enter button circuit - short to
ground
Refer to electrical circuit diagrams and check
enter button circuit for short to ground
B11AD-11 Exit button
Exit button circuit - short to
ground
Refer to electrical circuit diagrams and check exit
button circuit for short to ground
DTC
Description
Possible Cause
Action
B11AE-11 Menu button
Menu button circuit - short to
ground
Refer to electrical circuit diagrams and check
menu button circuit for short to ground
B11AF-11 Phone button
Phone button circuit - short to
ground
Refer to electrical circuit diagrams and check
phone button circuit for short to ground
B11B0-11 Scan button
Scan button circuit - short to
ground
Refer to electrical circuit diagrams and check scan
button circuit for short to ground
B11B1-11 Auto button
Auto button circuit - short to
ground
Refer to electrical circuit diagrams and check auto
button circuit for short to ground
B11B3-11 Button 6
Button 6 circuit - short to
ground
Refer to electrical circuit diagrams and check
button 6 circuit for short to ground
B11B4-11 Button 7
Button 7 circuit - short to
ground
Refer to electrical circuit diagrams and check
button 7 circuit for short to ground
B11B5-11 Button 8
Button 8 circuit - short to
ground
Refer to electrical circuit diagrams and check
button 8 circuit for short to ground
B11B6-11 Button 9
Button 9 circuit - short to
ground
Refer to electrical circuit diagrams and check
button 9 circuit for short to ground
B1A59-49 Sensor 5 volt supply
Internal electronic failure
Install a new information and entertainment
module, refer to the new module/component
installation note at the top of the DTC Index
B1D21-15 Remote control switch
Remote control switch circuit -
short to power, open circuit
Refer to electrical circuit diagrams and check
remote control switch circuit for short to power,
open circuit
U0010-00 Medium speed CAN
communication Bus
Bus Off
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
U0127-00 Lost communications
with tire pressure
monitor system module
Lost communications
Carry out CAN Network integrity tests using
manufacturer approved diagnostic system. Check
CJB for DTCs and refer to relevant DTC Index.
For additional information, refer to:
Communications Network
(418-00 Module
Communications Network, Diagnosis and
Testing).
U0140-00 Lost communications
with CJB
Lost communications
Carry out CAN Network integrity tests using
manufacturer approved diagnostic system. Check
CJB for DTCs and refer to relevant DTC Index.
For additional information, refer to:
Communications Network
(418-00 Module
Communications Network, Diagnosis and
Testing).
U0142-00 Lost communication
with body control
module 'B'
Lost communications
Carry out CAN Network integrity tests using
manufacturer approved diagnostic system. Check
CJB for DTCs and refer to relevant DTC Index.
For additional information, refer to:
Communications Network
(418-00 Module
Communications Network, Diagnosis and
Testing).
U0155-00 Lost communication
with instrument cluster
Lost communications
Carry out CAN Network integrity tests using
manufacturer approved diagnostic system. Check
instrument cluster for DTCs and refer to relevant
DTC Index.
For additional information, refer to:
Instrument
Cluster
(413-01 Instrument Cluster, Diagnosis
and Testing).
U0159-00 Lost communications
with park assist control
module 'A'
Lost communications
Carry out CAN Network integrity tests using
manufacturer approved diagnostic system. Check
parking aid module for DTCs and refer to relevant
DTC Index.
For additional information, refer to:
Parking Aid
(413-13 Parking Aid, Diagnosis and Testing).
U0164-00 Lost communication
with climate control
module
Lost communications
Carry out CAN Network integrity tests using
manufacturer approved diagnostic system. Check
climate control module for DTCs and refer to
relevant DTC Index.
For additional information, refer to:
Climate
Control System
(412-00 Climate Control System -
General Information, Diagnosis and Testing).
U0184-00 Lost communication
with radio
Lost communications
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
U0186-00 Lost communications
with audio amplifier 'A'
Lost communications
Carry out pinpoint tests associated with this DTC
using the manufacturer approved diagnostic
system
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