Land Rover Discovery: Warning Devices / Diagnosis and Testing
PRINCIPLES OF OPERATION
For a detailed description of the Blindspot Monitoring system, refer to the
relevant Description and Operation section in the workshop manual. REFER
to: Warning Devices (413-09 Warning Devices, Description and Operation).
INSPECTION AND VERIFICATION
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 a 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.
- When performing voltage or resistance tests, always use a digital
multimeter accurate to three decimal places, and with an up-todate
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.
- Verify the customer concern
- Visually inspect for obvious signs of damage and system integrity
Visual Inspection
- If an obvious cause for an observed or reported concern is found,
correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to
the
Symptom Chart, alternatively check for Diagnostic Trouble Codes
(DTCs) and refer to the DTC Index
- 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
SYMPTOM CHART
SYMPTOM:
Blindspot monitoring
system inoperative
POSSIBLE CAUSE:
- Road speed
too low
- Trailer
connected
- Reverse, park
or neutral
gear selected
ACTION:
- No fault - Blindspot monitoring is active at
road speeds above approximately 10mph
(16km/h)
- No fault - Blindspot monitoring is inhibited
when a trailer is connected
- No fault - Blindspot monitoring is available
only when a forward gear is selected
SYMPTOM:
BLIND SPOT
MONITORING
BLOCKED message
displayed in message
center
POSSIBLE CAUSE:
- Blindspot
monitoring
sensors
obstructed
(by mud,
snow, etc)
ACTION:
- Clean the areas around the blindspot
monitoring control modules (the rear
bumper, to the rear of the rear wheels)
SYMPTOM:
BLIND SPOT
MONITORING NOT
AVAILABLE message
displayed in message
center
POSSIBLE CAUSE:
- Blindspot
monitoring
system fault
ACTION:
NOTE:
Blindspot monitoring is disabled for
both sides of the vehicle when a fault
has been detected.
- Using the manufacturer approved
diagnostic system, check the left/right
blindspot monitoring control module for
related DTCs and refer to the relevant DTC
index
DTC INDEX
For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this
vehicle, please refer to Section 100-00. REFER to: Diagnostic Trouble Code
Index - DTC: Blindspot Monitoring Control Module (BMCM) - (Left/Right)
(100-00 General Information, Description and Operation).
READ NEXT:
PRINCIPLES OF OPERATION
For a detailed description of the Autolamps, refer to the relevant
Description and Operation section in the workshop manual. REFER to:
Exterior Lighting (417-01 Exterior Lighti
OVERVIEW
The Daytime Running Lamps (DRL) and side lamps are incorporated into the
headlamp assemblies.
For additional information, refer to: Exterior Lighting (417-01, Description
and Operation).
On
SEE MORE:
REMOVAL
NOTES:
Some variation in the illustrations may occur, but the essential
information is always correct.
Some components shown removed for clarity.
Removal steps in this procedure may contain installation details.
Left shown, right similar.
Disconnect the battery ground cable.
Refer
GENERAL EQUIPMENT
System pressure tester
ACTIVATION
WARNING:
Since injury such as scalding could be caused by escaping steam or
coolant, allow the vehicle cooling system to cool prior to carrying out
this procedure.
NOTES:
The following procedure will enable the cooling system to be
pressure test