Repair manual
Wiring diagrams
Land Rover Discovery L318 Repair Manual
Step-by-step repair and maintenance instructions for the Land Rover Discovery L318 (2002–2004): removal, installation, adjustment, diagnostics and parameter checks with illustrations.
76sections
487articles
ENManual language
- GENERAL
- ACE Circuit Supply
- Ignition Switch Circuit Supply
- Ignition Signal
- Mains supply
- FLUID RESERVOIR
- HYDRAULIC PUMP
- SYSTEM PIPES
- VALVE BLOCK
- ACTUATORS
- TORSION BAR
- ACCELEROMETERS
- ELECTRONIC CONTROL UNIT
- FAILURE MODES
- DISCONNECTING & CONNECTING BATTERY
- JACKING & HOISTING
- FLOOR JACK
- HOIST
- BLEEDING SYSTEM
- FLUID LEVEL CHECK
- TROUBLE SHOOTING
- SYMPTOM DIAGNOSIS
- Active Cornering Enhancement System Faulty Or Inoperative
- No ACE Control
- ACE Active In Reverse
- Random Movements Of Suspension
- DIAGNOSIS & TESTING
- REMOVAL & INSTALLATION
- LOWER ACCELEROMETER
- UPPER ACCELEROMETER
- ACE PUMP
- Installation
- ACTUATOR (FRONT)
- Removal
- ACTUATOR (REAR)
- PRESSURE TRANSDUCER
- PIPE ASSEMBLY - VALVE BLOCK TO REAR ACTUATOR
- BUSHES - REAR LONG ARM
- TORQUE SPECIFICATIONS
- WIRING DIAGRAMS
- General information
- General
- Evaporator
- Refrigerant lines
- Control system
- ATC ECU
- Dual pressure switch
- Evaporator temperature sensor
- In-car temperature sensor
- Sunlight sensor
- Heater coolant temperature sensor
- Ambient temperature sensor
- Air temperature control
- Inlet air control
- Timed recirculated air
- Latched recirculated air
- Blower control
- Air distribution control
- Compressor control
- Engine cooling fan control
- Default settings
- Diagnostics
- Description
- Thermostatic expansion valve
- Blower
- Resistor pack
- Air ducts
- Vent assemblies
- Rear control system
- Control switches
- Rear blower relay
- Operation
- Evacuation
- Recharging
- Refit
- APPLICATION
- IDENTIFICATION
- GENERAL
- Torque Converter Housing
- Intermediate Plate
- Automatic Transmission Housing
- Valve Block
- Rear Extension Housing
- Automatic Transmission Power Flows
- ELECTRONIC AUTOMATIC TRANSMISSION ELECTRONIC CONTROL UNIT
- GEAR POSITION SWITCH
- GEAR RATIOS
- GEAR SELECTOR CABLE
- GEAR SELECTOR LEVER ASSEMBLY
- LOCK-UP SOLENOID VALVE (MV3) & SHIFT CONTROL SOLENOID VALVES (MV1 & MV2)
- PRESSURE REGULATOR SOLENOID VALVE
- TRANSMISSION FLUID COOLER
- DIAGNOSTICS
- Controller Area Network
- On Board Diagnostic System
- COMPENSATION FOR REDUCED ENGINE TORQUE
- GEAR SELECTOR LEVER INTERLOCK
- HIGH/LOW RANGE
- KICKDOWN
- MODE SELECT
- Sport Mode
- Manual Mode
- SHIFT CONTROL
- TORQUE CONVERTER LOCK-UP
- TOWING/STEEP GRADIENTS
- COMPONENT LOCATIONS
- TROUBLE SHOOTING
- PRELIMINARY INSPECTION
- SYMPTOM DIAGNOSIS
- Abrupt Or Jerky Gear Changes
- Harsh Gear Changes, Poor Gear Selection, Gear Slip Or Loss Of Drive Or Intermittent Failure Of Park Lock Function
- Large Amount Of Friction Material In Pan Or On Filter Screen
- Loss Of Drive Or Slipping Transmission
- Transmission Fluid Leaking Out Of Dipstick Tube
- Transmission Shifting Erratically
- Transmission Slipping On Acceleration, Erratic Upshifts, Vehicle Jerking While Accelerating Or Engine Revs (Flares) On Upshift
- TORQUE CONVERTER ROAD TEST
- HYDRAULIC PRESSURE TESTS
- STALL SPEED TEST
- CLUTCH & SERVO AIR CHECKS
- TEST PROCEDURE
- POWER OR COMMUNICATION LOST TO ELECTRONIC AUTOMATIC TRANSMISSION ELECTRONIC CONTROL UNIT
- RETRIEVING DIAGNOSTIC TROUBLE CODES
- SYSTEM MONITORS
- End Of Line Programming Monitoring
- Gear Ratio Functional Check Monitoring
- Pressure Regulator Solenoid Monitoring
- Shift Solenoids Monitoring
- System Interface Monitoring
- Torque Converter Clutch Solenoid Monitoring
- Transmission Control Module Monitoring
- DIAGNOSTIC TROUBLE CODE DEFINITIONS
- CLEARING DIAGNOSTIC TROUBLE CODES
- SUMMARY
- FAULT CODE 01: TRANSMISSION RELAY CONTROL (RELAY STICKS, SHORT CIRCUIT)/SOLENOID VALVES POWER SUPPLY RELAY STICKING OPEN OR SHORT CIRCUIT
- FAULT CODE 02: TRANSMISSION RELAY CONTROL (RELAY STICKS, OPEN CIRCUIT)/SOLENOID VALVES POWER SUPPLY RELAY STICKING CLOSED OR OPEN CIRCUIT
- FAULT CODE 03: EEPROM COMMUNICATION FAULT/ECU FAULT, EEPROM COMMUNICATION
- FAULT CODE 04: EEPROM CHECKSUM FAULT/ECU EEPROM CHECKSUM
- FAULT CODE 05: TORQUE CONVERTER LOCK-UP CLUTCH MONITORING/TORQUE CONVERTER LOCK-UP CLUTCH FAULT
- FAULT CODE 06: WATCHDOG CHECK, ECU FAULT
- FAULT CODE 08: SOLENOID VALVE 1 CHECK (SHORT CIRCUIT TO VOLTAGE)/SHIFT SOLENOID (MV1) SHORT CIRCUIT
- FAULT CODE 09: SOLENOID VALVE 2 CHECK (SHORT CIRCUIT TO VOLTAGE)/SHIFT SOLENOID (MV2) SHORT CIRCUIT
- FAULT CODE 10: PRESSURE REGULATOR CHECK (SHORT CIRCUIT TO VOLTAGE)/PRESSURE REGULATING SOLENOID (MV4) SHORT CIRCUIT
- FAULT CODE 11: CAN MESSAGE MD-REIB INVALID (FFH)/CAN MESSAGE: ENGINE FRICTION INVALID
- FAULT CODE 12: MES LINE 1 FAULT/BECM TO MESSAGE CENTER CIRCUIT FAULT
- FAULT CODE 13: MES LINE 2 FAULT/BECM TO MESSAGE CENTER CIRCUIT FAULT
- FAULT CODE 14: GEAR POSITION SWITCH MONITORING (PERMANENT)/GEAR POSITION SWITCH INCORRECT OUTPUTS
- FAULT CODE 15: CAN LEVEL MONITORING
- FAULT CODE 16: CAN BUS MONITORING/CAN BUS FAULT
- FAULT CODE 17: CAN TIME-OUT MONITORING
- FAULT CODE 18: CAN MESSAGE WFPDK (THROTTLE ANGLE) IN INVALID (FFH)/CAN MESSAGE: THROTTLE POSITION INVALID
- FAULT CODE 19: CAN MESSAGE T-MOT INVALID (FFH)/CAN MESSAGE: ENGINE TEMPERATURE INVALID
- FAULT CODE 20: CAN MESSAGE V3 (ROAD SPEED) INVALID (FFH)/CAN MESSAGE: ROAD SPEED INVALID
- FAULT CODE 21: DOWNSHIFT SAFETY MONITORING/DOWNSHIFT SAFETY MONITOR PREVENTED DOWNSHIFT WHICH WOULD HAVE CAUSED ENGINE OVERSPEED
- FAULT CODE 22: STALL SPEED MONITORING/TORQUE CONVERTER SLIPPING
- FAULT CODE 23: GEAR POSITION SWITCH DURING CRANKING/GEAR POSITION SWITCH INCORRECT OUTPUTS
- FAULT CODE 24: BATTERY SUPPLY CHECK/BATTERY SUPPLY BELOW 9 VOLTS WHILE ENGINE IS RUNNING
- FAULT CODE 25: SOLENOID VALVE FOR TC (SHORT CIRCUIT TO GROUND, OR OPEN CIRCUIT)/TORQUE CONVERTER LOCK-UP SOLENOID (MV3) OPEN CIRCUIT
- FAULT CODE 26: SOLENOID VALVE 1 (LINE SHORT CIRCUIT GROUND, OR OPEN CIRCUIT)/SHIFT SOLENOID (MV1) OPEN CIRCUIT
- FAULT CODE 27: SOLENOID VALVE 2 (LINE SHORT CIRCUIT GROUND, OR OPEN CIRCUIT)/SHIFT SOLENOID (MV2) OPEN CIRCUIT
- FAULT CODE 28: PRESSURE REGULATOR (LINE SHORT CIRCUIT TO GROUND, OR OPEN CIRCUIT)/PRESSURE REGULATING SOLENOID (MV4) OPEN CIRCUIT
- FAULT CODE 29: GEAR RATIO MONITORING, 1ST GEAR/RATIO MONITORING IMPLAUSIBLE 1ST GEAR RATIO
- FAULT CODE 30: GEAR RATIO MONITORING, 2ND GEAR/RATIO MONITORING IMPLAUSIBLE 2ND GEAR RATIO
- FAULT CODE 31: GEAR RATIO MONITORING, 3RD GEAR/RATIO MONITORING IMPLAUSIBLE 3RD GEAR RATIO
- FAULT CODE 32: GEAR RATIO MONITORING, 4TH GEAR/RATIO MONITORING IMPLAUSIBLE 4TH GEAR RATIO
- FAULT CODE 33: CAN MESSAGE MD-IND INVALID, INDICATED BY F-TL-MES/CAN MESSAGE: ENGINE TORQUE INVALID
- FAULT CODE 34: CAN MESSAGE MD-IND INVALID (FFH)/CAN MESSAGE: ENGINE TORQUE INVALID
- FAULT CODE 35: CAN MESSAGE N-MOT INVALID, INDICATED BY F-N-MOT/CAN MESSAGE: ENGINE SPEED INVALID
- FAULT CODE 37: CAN MESSAGE T-ANS INVALID (FFH)/CAN MESSAGE: ENGINE AIR INTAKE TEMPERATURE INVALID
- FAULT CODE 38: CAN MESSAGE FHOEHE INVALID (FFH)/CAN MESSAGE: ALTITUDE SHIFT CONTROL INVALID
- FAULT CODE 39: RANGE SWITCH PLAUSIBILITY ERROR/TRANSMISSION HIGH/LOW RANGE IMPLAUSIBLE INPUT
- APPLICATION
- JACKING & HOISTING
- FLOOR JACK
- HOIST
- SERVICE INTERVALS
- CHECKING FLUID LEVEL
- Transfer Case
- FLUID CAPACITIES
- Replace Oil
- KICKDOWN
- Adjust
- STARTER INHIBITOR (PARK/NEUTRAL POSITION PNP) SWITCH
- REMOVAL & INSTALLATION
- Removal
- Installation
- GEAR POSITION SWITCH
- GEAR SELECTOR INDICATOR
- TORQUE SPECIFICATIONS
- VEHICLE IDENTIFICATION
- INTRODUCTION
- DIAGNOSTIC TROUBLE CODES & FREEZE FRAMES
- SYSTEM INTERFACES
- Inputs
- Outputs
- DESCRIPTION
- TID Services
- Catalyst Conversion
- O2 Sensors
- Secondary Air Injection System
- Exhaust Gas Recirculation
- EVAP System - Large Leak
- EVAP System - Small Leak
- DMTL Module
- O2 Sensor Heating
- Catalyst Heater
- Camshaft Shift
- Thermostat Diagnosis
- PARAMETER DESCRIPTIONS
- Computation Of Amplitude Ratio
- Post Processing
- Fault Evaluation
- Check Of Monitoring Conditions
- Data Acquisition
- Crankshaft Position Sensor Wheel Adaptation
- Misfire Detection
- Determination Of Misfiring
- Statistics, Fault Processing
- Passive Secondary Air Injection Diagnostic
- Active Secondary Air Injection Diagnostic
- EVAP System Monitoring Structure
- Primary Mixture Control
- Lambda-Control
- Adaptive Control
- Fuel Delivery System Abbreviations
- Diagnosis of Fuel Delivery System
- Fuel System Monitoring Structure
- Oxygen Sensor Heater Monitoring Description
- Oxygen Sensor Heater Monitoring Structure
- Oxygen Sensor Circuit Monitoring
- MASS AIRFLOW SENSOR & INTAKE AIR TEMPERATURE SENSOR
- DRIVE CYCLES
- Drive Cycle A
- Drive Cycle B
- Drive Cycle C
- Drive Cycle D
- Drive Cycle E
- General information
- General
- Blower Motor & Blower Motor Relay
- Heater matrix
- Control flaps
- Outlet vent
- FBH system (diesel models only)
- Ambient temperature sensor
- FBH fuel pump
- Air distribution
- Air temperature
- Blower speed
- Fresh/Recirculated inlet air
- FBH system (where fitted)
- Start sequence
- Coolant temperature control
- Shutdown
- Diagnostics
- Refit
- VEHICLE APPLICATIONS
- GENERAL
- Vehicles Up To 2003 Model Year
- Vehicles From 2003 Model Year
- CONSTRUCTION
- MAIN CASING
- Transmission Neutral Sensor
- Transfer Box Interlock Solenoid - Automatic transfer box Vehicles
- Mainshaft Input Gear
- Intermediate Gears
- Differential Assembly
- FRONT OUTPUT HOUSING
- High/Low Selector
- High/Low Detect Switch
- Differential Lock - If Fitted
- Functionality (Up To 2003 Model Year) Only
- Functionality (From 2003 Model Year Only)
- Differential Lock Warning Lamp Switch, If Fitted (Up To 2003 Model Year)
- Differential Lock Warning Lamp Switches (From 2003 Model Year)
- Differential Lock Warning Lamp (Up To 2003 Model Year, If Fitted)
- Differential Lock Warning Lamp (From 2003 Model Year)
- Rear Output Housing
- Lubrication
- Oil Temperature Warning Lamp Switch
- POWER FLOW
- COMPONENT LOCATIONS
- LUBRICATION SPECIFICATIONS
- TRANSFER BOX DRAIN & REFILL
- Check/Top-Up Oil Level
- Replace Oil
- SEALANTS
- Removal
- Installation
- Check
- Adjustment
- Disassembly
- Reassembly
- Inspection
- Reassembling
- Assembly
- TORQUE SPECIFICATIONS
- General information
- General
- Satellite fuse box
- Seat cushion front up down motor
- Seat cushion rear up down motor
- Seat squab fore aft motor
- Lumbar pump
- Lumbar deflate solenoid
- Seat power relay enable line
- Seat fore aft movement
- Seat cushion front up down movement
- Seat cushion rear up down movement
- Squab fore aft movement
- Lumbar inflate deflate
- Diagnostics
- Seat heater elements
- Thermostat
- Refit
- 78.10.48.99 Seat - rear
- Remove
- General information
- STEERING COLUMN ASSEMBLY & INTERMEDIATE SHAFT
- STEERING BOX
- General
- Steering Column
- Tilt Adjustment
- Steering Column Lock (All Except NAS)
- Steering Column Lock (NAS Only)
- Steering Wheel
- Intermediate Shaft
- Reservoir
- Principle Of Operation
- Rotary Control Valve
- Rotary Control Valve In Demand Mode
- Power Assisted Steering (PAS) Pump - V8
- Steering Damper
- OPERATION
- Check
- Adjust
- Bleed
- STEERING LINKAGE - CENTRALIZE
- WHEEL ALIGNMENT - FRONT
- Removal
- Installation
- SHAFT - INTERMEDIATE & UNIVERSAL JOINT - STEERING COLUMN
- TORQUE SPECIFICATIONS