Land Rover Discovery: Diagnosis and Testing Information and Entertainment System/ Symptom chart
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SYMPTOM:
Audio/video system
inoperative at start up
POSSIBLE CAUSES:
- Last used audio/video
source inoperative
- MOST network fault
ACTION
SYMPTOM:
Audio/video soft key
greyed out on touch
screen
POSSIBLE CAUSES:
- Last used audio/video
source inoperative
- MOST network fault
ACTION:
SYMPTOM:
Soft key response
different to soft key
touched
POSSIBLE CAUSES:
- Touch screen
calibration incorrect
ACTION:
- Perform touch screen calibration. GO
to Pinpoint Test C.
SYMPTOM:
Shortcut soft keys
missing from home
screen on the touch
screen
POSSIBLE CAUSES:
- Shortcut soft keys set
to off after operating
the Clear all soft key
on the 'Home menu
shortcuts' screen
ACTION:
- Set the shortcut soft keys to on by
navigating to the home screen and
operating the following soft keys:
Setup, System, Home menu
shortcuts, Default. The default
shortcut soft keys will now be available
on the home screen. The shortcut soft
keys can be customised as necessary
SYMPTOM:
Poor audio quality (all
sources)
POSSIBLE CAUSES:
- MOST harness
connections loose
- MOST harness
connections
contaminated
- MOST harness
misrouted - Too many
bends or bend radius
less than 25mm
- Audio amplifier system
fault
ACTION:
- Check MOST harness connectors for
security
- Check MOST harness connectors for
contamination
- Check the routing of the MOST
harness
- Using the manufacturer approved
diagnostic system, check the audio
amplifier module for related DTCs and
refer to the relevant DTC index
SYMPTOM:
One or more speakers
inoperative
POSSIBLE CAUSES:
- Audio amplifier system
fault
ACTION:
- Using the manufacturer approved
diagnostic system, check the audio
amplifier module for related DTCs and
refer to the relevant DTC index
SYMPTOM:
Radio inoperative
POSSIBLE CAUSES:
- AM/FM antenna fault
- MOST network fault
- Power supply failure
- Integrated audio
module internal failure
ACTION:
- Check if other audio sources activate
the speakers
- Check the harness for signs of damage
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Digital radio
inoperative
POSSIBLE CAUSES:
- Digital radio antenna
fault
- Tuner failure
- Antenna connectivity
or harness
- MOST network fault
- Power supply failure
- Digital radio control
module internal failure
ACTION:
- Check the harness for signs of damage
- Using the manufacturer approved
diagnostic system, check the digital
radio control module for related DTCs
and refer to the relevant DTC index
SYMPTOM:
Digital radio no signal
reception - New digital
radio control module
POSSIBLE CAUSES:
- Initial tuning not
completed
- Tuner failure
- Defective component
in antenna circuit
- Antenna signal
reception is obstructed
by buildings, clouds,
trees or tunnels
- Low MOST signal
- Extreme temperature
in vehicle
- Water ingress
ACTION:
Some functions are inhibited
when the vehicle is moving.
- Operate the Auto-tune soft key
SYMPTOM:
Digital radio poor
signal reception
POSSIBLE CAUSES:
- Tuning not refreshed
- Link DAB set to off
- L-band antenna set to
off in a L-band antenna
region
- Band 3 antenna set to
off in a band 3 antenna
region
- L-band antenna or link
harness damaged
- Band 3 antenna or link
harness damaged
- Software issue
- Antenna damaged
- Antenna signal
reception is obstructed
by buildings, clouds
and trees or tunnels
- Low MOST signal
- Extreme temperature
in vehicle
- Water ingress
ACTION:
NOTE:
Some functions are inhibited
when the vehicle is moving.
- Operate the Auto-tune soft key
- Operate the Settings soft key,
followed by the Options soft key and
set Link DAB to on
- Operate the Settings soft key,
followed by the L band and Band 3
soft key
- Operate the Settings soft key,
followed by the L band and Band 3
soft key
- Check the L-band antenna and link
harness for damage
- Check the band 3 antenna and link
harness for damage
- Using the manufacturer approved
diagnostic system, re-configure the
digital radio control module with the latest level
software
- Check the antenna for damage
SYMPTOM:
Digital radio channel
list not displayed
POSSIBLE CAUSES:
- Tuning not refreshed
- L-band antenna set to
off in a L-band antenna
region
- Band 3 antenna set to
off in a band 3 antenna
region
- MOST connector
damaged
- MOST network issue
ACTION:
NOTE:
Some functions are inhibited
when the vehicle is moving.
- Operate the Auto-tune soft key
- Operate the Settings soft key,
followed by the L band and Band 3
soft key
- Operate the Settings soft key,
followed by the L band and Band 3
soft key
- Check MOST harness connectors for
damage
SYMPTOM:
Digital radio
interrupted by
announcements
POSSIBLE CAUSES:
- Announcements set to
on
- MOST connector
damaged
- MOST network issue
- Moving through a
tunnel
ACTION:
NOTE:
Some functions are inhibited
when the vehicle is moving.
- Operate the Settings soft key,
followed by the Announcements soft
key, and set all Announcements to off
- Check MOST harness connectors for
damage
SYMPTOM:
Unable to store preset
channels in digital
radio
POSSIBLE CAUSES:
- Preset # soft key not
operated for sufficient
duration
ACTION:
- Operate the Preset # soft key for at
least 2 seconds to store the current
station
SYMPTOM:
Digital radio will not
select preset station
when Preset # soft key
operated
POSSIBLE CAUSES:
- No station stored to
relevant Preset # soft
key
ACTION:
- Store a station to the relevant Preset
# soft key and retest
SYMPTOM:
NOTE:
Satellite Digital
Audio Radio
Service
(SDARS)
applies to NAS
market vehicles
only.
Satellite radio
inoperative
POSSIBLE CAUSES:
- Satellite radio antenna
fault
- Satellite radio control module internal failure
ACTION:
- Using the manufacturer approved
diagnostic system, check the satellite
radio control module for related DTCs
and refer to the relevant DTC index
SYMPTOM:
NOTE:
Satellite Digital
Audio Radio
Service
(SDARS)
applies to NAS
market vehicles
only.
No Satellite Digital
Audio Radio Service
(SDARS) channels
available - 'No signal'
or 'Acquiring signal'
message
POSSIBLE CAUSES:
- Vehicle not in USA
- Poor signal reception
- Satellite Digital Audio
Radio Service (SDARS)
system fault
ACTION:
- No fault to rectify
- The vehicle must have clear line of
sight to a satellite, which means being
outside and having no blockages
between the vehicle and the satellite
- Using the manufacturer approved
diagnostic system, check the Satellite
Radio Control Module (SRCM) for
related DTCs and refer to the relevant
DTC index
SYMPTOM:
NOTE:
Satellite Digital
Audio Radio
Service
(SDARS)
applies to NAS
market vehicles
only.
Only one Satellite
Digital Audio Radio
Service (SDARS)
channel available
(channel 184) - 'Unsubscribed'
message
POSSIBLE CAUSES:
- Channel 184 is
available without
subscription for a
limited period (6
months)
ACTION:
- No fault to rectify. Subscribe to
Satellite Digital Audio Radio Service
(SDARS) to resume service
SYMPTOM:
NOTE:
Satellite Digital
Audio Radio
Service
(SDARS)
applies to NAS
market vehicles
only.
No Satellite Digital
Audio Radio Service
(SDARS) channels
available after 6
months without
subscribing -
'Unsubscribed'
message
POSSIBLE CAUSES:
- Channel 184 is
available without
subscription for a
limited period (6
months)
ACTION:
- No fault to rectify. Subscribe to
Satellite Digital Audio Radio Service
(SDARS) to resume servic
SYMPTOM:
NOTE:
Satellite Digital
Audio Radio
Service
(SDARS)
applies to NAS
market vehicles
only.
Some Satellite Digital
Audio Radio Service
(SDARS) unavailable -
'Unsubscribed'
message
POSSIBLE CAUSES:
- Adult channels blocked
by subscription type
(family package)
ACTION:
- No fault to rectify. Subscribe to
Satellite Digital Audio Radio Service
(SDARS) full package to receive adult
channels
SYMPTOM:
NOTE:
Satellite Digital
Audio Radio
Service
(SDARS)
applies to NAS
market vehicles
only.
Satellite Digital Audio
Radio Service (SDARS)
pay channels
unavailable -
'Unsubscribed'
message
POSSIBLE CAUSES:
ACTION:
SYMPTOM:
Compact disc player
inoperative
POSSIBLE CAUSES:
- Incompatible/damaged
compact disc
- Integrated audio
module internal failure
ACTION:
- Insert a known good disc and retest
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Unable to upload files
to the hard drive
POSSIBLE CAUSES:
- Incompatible/damaged
compact disc
- Integrated audio
module internal failure
ACTION:
- Insert a known good disc and retest
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Auxiliary audio
inoperative
POSSIBLE CAUSES:
- Incompatible/faulty
auxiliary device
- Auxiliary device link
cable fault
- Integrated audio
module internal failure
ACTION:
- Connect a known good auxiliary
device to the auxiliary socket and
retest
- Connect a known good auxiliary
device to the auxiliary socket using a
known good link cable and retest
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
USB audio/video
inoperative
POSSIBLE CAUSES:
- Incompatible/faulty
USB device
- Integrated audio
module internal failure
ACTION:
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
USB audio/video
inoperative - Apple
devices
POSSIBLE CAUSES:
- Incompatible/faulty
Apple device
- Bluetooth and USB
connections made in
the incorrect order
- Integrated audio
module internal failure
ACTION:
- Check Apple device compatibility
table below. Connect a known good
Apple device to the auxiliary socket
and retest
- Audio streaming is supported via the
USB cable but this must be connected
after the cellular phone connects via
Bluetooth - Best practice is to start
the engine (causing the Bluetooth
connection to be made) before
connecting the USB cable
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Television inoperative
POSSIBLE CAUSES:
- TV antenna fault
- TV control module
internal failure
ACTION:
NOTE:
Some functions are inhibited
when the vehicle is moving.
- Using the manufacturer approved
diagnostic system, check the TV
control module for related DTCs and
refer to the relevant DTC index
SYMPTOM:
Television video signal
poor/inoperative at the
touch screen (television
audio normal) -
Vehicles without rear
seat entertainment
POSSIBLE CAUSES:
- CVBS signal circuit
short circuit to ground,
short circuit to power,
open circuit, high
resistance
ACTION:
NOTES:
- Some functions are inhibited
when the vehicle is moving.
- The television audio signal is
transmitted on the MOST
network.
Using the manufacturer approved
diagnostic system, check the television control module for related DTCs and
refer to the relevant DTC index. Refer
to the electrical circuit diagrams and
check the CVBS signal circuit for short
circuit to ground, short circuit to
power, open circuit, high resistance
Using the manufacturer approved
diagnostic system, check the television
control module for related DTCs and
refer to the relevant DTC index
SYMPTOM:
Television video signal
poor/inoperative at the
touch screen (television
audio normal) -
Vehicles with rear seat
entertainment
POSSIBLE CAUSES:
- Antenna damaged
- Antenna circuit short
circuit to ground, short
circuit to power, open
circuit, high resistance
LVDS signal circuit
short circuit to ground,
short circuit to power,
open circuit, high
resistance
- CVBS signal circuit
short circuit to ground,
short circuit to power,
open circuit, high
resistance
- Non-genuine
electronic accessories
ACTION:
NOTES:
- Some functions are inhibited
when the vehicle is moving.
- The television audio signal is
transmitted on the MOST
network.
- Check the antenna for damage
- Refer to the electrical circuit diagrams
and check the antenna circuit for short
circuit to ground, short circuit to
power, open circuit, high resistance
- Using the manufacturer approved
diagnostic system, check the rear seat
entertainment control module for
related DTCs and refer to the relevant
DTC index. Refer to the electrical
circuit diagrams and check the LVDS
signal circuit for short circuit to
ground, short circuit to power, open
circuit, high resistance
- Using the manufacturer approved
diagnostic system, check the rear seat
entertainment control module for
related DTCs and refer to the relevant
DTC index. Refer to the electrical
circuit diagrams and check the CVBS
signal circuit for short circuit to
ground, short circuit to power, open
circuit, high resistance
- Disconnect/remove non-genuine
electronic accessories and retest
SYMPTOM:
Television video signal poor/inoperative at the
touch screen AND the
rear seat entertainment
screens (television
audio normal) -
Vehicles with rear seat
entertainment
POSSIBLE CAUSES:
- Antenna damaged
- Antenna circuit short
circuit to ground, short
circuit to power, open
circuit, high resistance
- LVDS signal circuit
short circuit to ground,
short circuit to power,
open circuit, high
resistance
- TV control module
fault
- Non-genuine
electronic accessories
ACTION:
NOTE:
The television audio signal is
transmitted on the MOST
network.
- Check the antenna for damage
- Refer to the electrical circuit diagrams
and check the antenna circuit for short
circuit to ground, short circuit to
power, open circuit, high resistance
- Using the manufacturer approved
diagnostic system, check the rear seat
entertainment control module for
related DTCs and refer to the relevant
DTC index. Refer to the electrical
circuit diagrams and check the LVDS
signal circuit for short circuit to
ground, short circuit to power, open
circuit, high resistance
- Using the manufacturer approved
diagnostic system, check the television
control module for related DTCs and
refer to the relevant DTC index
- Disconnect/remove non-genuine
electronic accessories and retest
SYMPTOM:
Television channel list
absent
POSSIBLE CAUSES:
- Incorrect country
setting
- Software fault
ACTION:
NOTE:
Some functions are inhibited
when the vehicle is moving.
- Check country setting and reset as
necessary
- Set the country setting to Ukraine and
wait 60 seconds. If the channel list is
now present, reset to the correct
country and using the manufacturer
approved diagnostic system, reconfigure
the television control
module with the latest level software
SYMPTOM:
Unable to store
POSSIBLE CAUSES:
- Preset # soft key not operated for sufficient
duration
ACTION:
- Operate the Preset # soft key for at least 2 seconds
to store the current
channel
SYMPTOM:
Television will not
select preset channel
when Preset # soft key
operated
POSSIBLE CAUSES:
- No television channel
stored to relevant
Preset # soft key
ACTION:
NOTE:
Some functions are inhibited
when the vehicle is moving.
- Store a channel to the relevant Preset
# soft key and retest
SYMPTOM:
DVD player inoperative
POSSIBLE CAUSES:
- Incompatible/damaged
compact disc
- Incorrect region set
Integrated audio
- module internal failure
ACTION:
NOTE:
Some functions are inhibited
when the vehicle is moving.
- Insert a known good disc and retest
- Change region setting
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Unable to pair mobile
phone to vehicle via
Bluetooth
POSSIBLE CAUSES:
- Incompatible mobile
phone
ACTION:
NOTE:
Installing new components will
not improve connectivity with an
incompatible mobile phone.
SYMPTOM:
Echo when using a
mobile phone via
Bluetooth
POSSIBLE CAUSES:
- Noise cancelling set to
On in mobile phone
and vehicle
ACTION:
- Set noise cancelling to Off in mobile
phone
SYMPTOM:
Navigation system
inoperative (integrated
navigation system)
POSSIBLE CAUSES:
- Navigation antenna
fault
- Integrated audio
module internal failure
ACTION:
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Navigation system
inoperative (with
navigation control
module)
POSSIBLE CAUSES:
- Navigation antenna
fault
- Navigation control
module internal failure
ACTION:
- Using the manufacturer approved
diagnostic system, check the
navigation control module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Traffic message
channel inoperative
POSSIBLE CAUSES:
- FM/TMC antenna fault
- VICS antenna fault
- Integrated audio
module internal failure
ACTION:
NOTE:
Vehicle Information and
Communication System (VICS) is
a type of Traffic Message
Channel system used in the
Japan market only.
- Using the manufacturer approved
diagnostic system, check the
integrated audio module for related
DTCs and refer to the relevant DTC
index
SYMPTOM:
Rear seat
entertainment system
inoperative
POSSIBLE CAUSES:
- Rear seat
entertainment control
module internal failure
ACTION:
- Using the manufacturer approved
diagnostic system, check the rear seat
entertainment control module for
related DTCs and refer to the relevant
DTC index
SYMPTOM:
Poor/no image
displayed from rear
view camera
POSSIBLE CAUSES:
- Touch screen/multifunction
display fault
- Rear view camera fault
ACTION:
READ NEXT:
NOTE:
Before attempting a repair to the in-vehicle
infotainment system
following concerns regarding no playback of audio files stored either
on a USB data storage device or on a CD data disc, check b
If DTC B1252-19 (USB Port General Electrical Failures -
Circuit current above
threshold) has been logged, the IAM has detected a current draw from the
Portable Audio Interface Panel in excess of 1.7
NOTES:
The software update cannot be performed whilst the
vehicle is in
motion, the software update must be a valid InControl Apps
version and the USB flash drive must not be removed until
prom
SEE MORE:
CHILD SAFETY LOCKS
If children are to be carried in the rear seat
positions, it is recommended that the rear
door interior handles are disabled.
Press the switch to activate the child door
locks and inhibit the rear windows. The
LED indicator will illuminate when active
and a message will display
Note: The Voice control system has been
designed to recognise a number of
languages. However, it cannot be
guaranteed that the system will be
compatible with every accent group within
those languages. Please speak to a
Retailer/Authorised Repairer about testing
the Voice control system for compatibi