Land Rover Discovery: Starting System - Ingenium
i4 2.0l Diesel / Diagnosis and Testing
PRINCIPLES OF OPERATION
For a detailed description of the Starting System, refer to the relevant
Description and Operation section in the workshop manual. REFER to:
Starting System (303-06C Starting System - GTDi 2.0L Petrol/GTDi 2.0L
Petrol - SULEV, 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
![Visual Inspection](images/books/227/index450(15).jpg)
- 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 CHART](images/books/227/index451(15).jpg)
![SYMPTOM CHART](images/books/227/index452(15).jpg)
![SYMPTOM CHART](images/books/227/index453(15).jpg)
SYMPTOM:
The engine
does not
crank
(starter
motor
does not
turn)
POSSIBLE CAUSES:
- Battery/charging
system fault
- Engine system fault
- Transmission fault
- Transmission control
switch not set to Park
or Neutral
- Smart key not
present/recognised
- Starter relay circuit
open circuit, high
resistance
- Starter motor ground
circuit open circuit,
high resistance
- Starter motor
solenoid power
circuit short circuit to
ground, open circuit,
high resistance
- Starter motor power
circuit short circuit to
ground, open circuit,
high resistance
- Engine seized
ACTION:
- Refer to the relevant section of the workshop
manual and check the battery and charging
system. Rectify as necessary
- Using the Jaguar Land Rover approved
diagnostic equipment, check the powertrain
control module for related DTCs and refer to
the relevant DTC index
- Using the Jaguar Land Rover approved
diagnostic equipment, check the transmission
control module for related DTCs and refer to
the relevant DTC index
- Set the transmission control switch to Park or
Neutral and retest
- Check that the smart key is present and
recognised
- Refer to the electrical circuit diagrams and
check the starter relay circuit for open circuit,
high resistance. Repair the wiring harness or
install a new starter relay as necessary
- Refer to the electrical circuit diagrams and
check the starter motor ground circuit for
open circuit, high resistance. Repair the wiring
harness as necessary
- Refer to the electrical circuit diagrams and
check the starter motor solenoid power circuit
for short circuit to ground, open circuit, high
resistance. Repair the wiring harness or install
a new starter motor solenoid as necessary
Refer to the electrical circuit diagrams and
check the starter motor power circuit for short circuit
to ground, open circuit, high resistance.
- Repair the wiring harness or install a new
starter motor as necessary
- Check that the engine turns freely. Rectify as
necessary
SYMPTOM:
The engine
does not
crank
(starter
motor
does turn)
POSSIBLE CAUSES:
- Starter motor
incorrectly installed
- Starter motor internal
failure
- Flywheel / drive plate
ring gear damaged
ACTION:
- Check the installation of the starter motor.
Rectify as necessary
- Check the operation of the starter motor.
Rectify as necessary
- Check the flywheel / drive plate ring gear
teeth for damage, foreign objects, etc. Rectify
as necessary
SYMPTOM:
Engine
cranks too
slowly
POSSIBLE CAUSES:
- Battery/charging
system fault
- Starter motor ground
circuit open circuit,
high resistance
- Starter motor power
circuit open circuit,
high resistance
- Starter motor internal
failure
- Engine oil grade
incorrect
ACTION:
- Refer to the relevant section of the workshop
manual and check the battery and charging
system. Rectify as necessary
- Refer to the electrical circuit diagrams and
check the starter motor ground circuit for
open circuit, high resistance. Repair the wiring
harness as necessary
- Refer to the electrical circuit diagrams and
check the starter motor power circuit for open
circuit, high resistance. Repair the wiring
harness as necessary
- Check the operation of the starter motor.
Rectify as necessary
- Check the engine oil grade. Rectify as
necessary
SYMPTOM:
Starter
motor
excessively
noisy
POSSIBLE CAUSES:
- Starter motor
incorrectly installed
- Starter motor internal
failure
- Flywheel / drive plate
ring gear damaged
ACTION:
- Check the installation of the starter motor.
Rectify as necessary
- Check the operation of the starter motor.
Rectify as necessary
- Check the flywheel / drive plate ring gear
teeth for damage, foreign objects, etc. Rectify
as necessary
SYMPTOM:
Auto
stop/start
system
inoperative
POSSIBLE CAUSES:
- Auto stop/start
system inhibited
- Driver
error/expectation
- Recent DTC clear
- System fault
- Auto stop/start
system fault
ACTION:
NOTE:
'AUTO STOP/START FAULT' will be
displayed in the instrument cluster
message centre when the system is
inoperative due to a fault.
- Refer to the Auto Stop/Start System Inhibits
table for possible inhibit conditions
- Auto stop/start system inhibited due to
driver error/expectation:
Explain/demonstrate the auto stop/start
system to the driver
- Auto stop/start system inhibited due to a
recent DTC clear (and a drive cycle not
completed): Road test the vehicle at a
speed of 48 to 80 km/h (30 to 50 mph) for
2 to 3 minutes, allow the engine to idle,
auto stop/start will now activate
- Auto stop/start system inhibited due to
battery condition: Using the Jaguar Land
Rover approved diagnostic equipment,
perform routine - Power Supply Service
Mode Diagnostic Routine
- Using the Jaguar Land Rover approved
diagnostic equipment, check the powertrain
control module for related DTCs and refer to
the relevant DTC index
AUTO STOP/ START SYSTEM INHIBITS
The inhibit conditions listed below will not set Diagnostic Trouble Codes
(DTCs) but will set flags which can be viewed using the Jaguar Land Rover
approved diagnostic equipment - Datalogger / Powertrain Control Module
(PCM). Normal auto stop/start system operation will resume when an inhibit
condition is no longer present, but the battery related inhibits may persist
for some time.
NOTE:
Do not reset the Battery Monitoring System (BMS) to rectify battery
condition inhibits. This may temporarily restore auto stop/start system
operation but will lead to a recurrence of the fault.
INHIBITS
- Auto stop/start switch has been pressed by driver
- Transmission not in neutral
- Clutch pedal not fully released
- Accelerator pedal not released
- Hood open detected
- Driver door detected open
- Driver seatbelt not fastened
- Hill Descent Control (HDC) is switched on
- Terrain response special programme selected
- Climate control demand exceeds calibrated threshold
- Heated windshield operating
- Trailer connected
- Brake booster vacuum below threshold
- Engine coolant temperature below threshold
- Engine oil temperature below threshold
- Catalytic converter outside either pre or post calibration range
- Diesel Particulate Filter (DPF) active regeneration in progress
- Battery state of charge low
- Battery cold cranking capability below threshold
- Ambient temperature above 40ºC
- Ambient temperature below 0ºC
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 - INGENIUM I4 2.0L Diesel, DTC: Engine Control Module (ECM)
B10A2-07 to P034B-76 (100-00 General Information, Description and
Operation).
Starting System - Ingenium
i4 2.0l Diesel / Specifications
Torque Specifications
![Starting System - Ingenium i4 2.0l Diesel / Specifications](images/books/227/index454(15).jpg)
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SPECIAL TOOL(S)
PART(S)
REMOVAL
WARNING:
Observe due care when working near a hot exhaust system.
NOTES:
Some variation in the illustrations may occur, but the essential
information is always co
SEE MORE:
REMOVAL
CAUTIONS:
Make sure to protect the paintwork.
LH illustration shown, RH is similar.
Using a suitable tool, release the trim panel.
NOTE:
Removal steps in this procedure may contain installation details.
Refer to: Wheel and Tire (204-04, Removal and Installation).
INSTALLATION
T
COMPONENT LOCATION
Upper column
Steering wheel
Intermediate shaft
OVERVIEW
The steering column consists of an intermediate shaft, the upper column
and the steering wheel, which are connected together to transfer driver
steering inputs to the steering gear.
The steering column incorporates ra