Repair manual
Wiring diagrams
Land Rover Discovery III Repair Manual
Step-by-step repair and maintenance instructions for the Land Rover Discovery III (2004–2004): removal, installation, adjustment, diagnostics and parameter checks with illustrations.
- 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
- Thermostatic expansion valve
- Blower
- Resistor pack
- Air ducts
- Rear control system
- Control switches
- Rear blower relay
- Evacuation
- Recharging
- Refit
- GENERAL
- 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
- LOCK-UP SOLENOID VALVE (MV3) & SHIFT CONTROL SOLENOID VALVES (MV1 & MV2)
- PRESSURE REGULATOR SOLENOID VALVE
- Controller Area Network
- GEAR SELECTOR LEVER INTERLOCK
- HIGH/LOW RANGE
- KICKDOWN
- MODE SELECT
- Sport Mode
- Manual Mode
- SHIFT CONTROL
- TOWING/STEEP GRADIENTS
- 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 Shifting Erratically
- Transmission Slipping On Acceleration, Erratic Upshifts, Vehicle Jerking While Accelerating Or Engine Revs (Flares) On Upshift
- HYDRAULIC PRESSURE TESTS
- CLUTCH & SERVO AIR CHECKS
- POWER OR COMMUNICATION LOST TO ELECTRONIC AUTOMATIC TRANSMISSION ELECTRONIC CONTROL UNIT
- SYSTEM MONITORS
- End Of Line Programming Monitoring
- Gear Ratio Functional Check Monitoring
- Pressure Regulator Solenoid Monitoring
- Shift Solenoids Monitoring
- System Interface Monitoring
- Transmission Control Module Monitoring
- 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 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 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 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 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
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Parasitic Load Explanation & Test Procedures - General Information
- Waveforms - Injector Pattern Tutorial - General Information
- Electrostatic Discharge Warning - General Information
- State Emission Standards - Diesel
- 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
- Refit