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Repair manual

Automatic Transmission Diagnosis - with Codes Land Rover Discovery L318

Step-by-step instructions on "Automatic Transmission Diagnosis - with Codes" for Land Rover Discovery L318 (2002–2004). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

96subsections

96articles

127illustrations

APPLICATION

1 article

• APPLICATION

IDENTIFICATION

1 article

• IDENTIFICATION 1

GENERAL

1 article

• GENERAL 2

Torque Converter Housing

1 article

• Torque Converter Housing

Intermediate Plate

1 article

• Intermediate Plate

Automatic Transmission Housing

1 article

• Automatic Transmission Housing

Valve Block

1 article

• Valve Block

Rear Extension Housing

1 article

• Rear Extension Housing

Automatic Transmission Power Flows

1 article

• Automatic Transmission Power Flows 6

ELECTRONIC AUTOMATIC TRANSMISSION ELECTRONIC CONTROL UNIT

1 article

• ELECTRONIC AUTOMATIC TRANSMISSION ELECTRONIC CONTROL UNIT 1

GEAR POSITION SWITCH

1 article

• GEAR POSITION SWITCH 1

GEAR RATIOS

1 article

• GEAR RATIOS

GEAR SELECTOR CABLE

1 article

• GEAR SELECTOR CABLE

GEAR SELECTOR LEVER ASSEMBLY

1 article

• GEAR SELECTOR LEVER ASSEMBLY 1

LOCK-UP SOLENOID VALVE (MV3) & SHIFT CONTROL SOLENOID VALVES (MV1 & MV2)

1 article

• LOCK-UP SOLENOID VALVE (MV3) & SHIFT CONTROL SOLENOID VALVES (MV1 & MV2)

PRESSURE REGULATOR SOLENOID VALVE

1 article

• PRESSURE REGULATOR SOLENOID VALVE

TRANSMISSION FLUID COOLER

1 article

• TRANSMISSION FLUID COOLER 2

DIAGNOSTICS

1 article

• DIAGNOSTICS

Controller Area Network

1 article

• Controller Area Network

On Board Diagnostic System

1 article

• On Board Diagnostic System

COMPENSATION FOR REDUCED ENGINE TORQUE

1 article

• COMPENSATION FOR REDUCED ENGINE TORQUE

GEAR SELECTOR LEVER INTERLOCK

1 article

• GEAR SELECTOR LEVER INTERLOCK

HIGH/LOW RANGE

1 article

• HIGH/LOW RANGE

KICKDOWN

1 article

• KICKDOWN

MODE SELECT

1 article

• MODE SELECT

Sport Mode

1 article

• Sport Mode

Manual Mode

1 article

• Manual Mode

SHIFT CONTROL

1 article

• SHIFT CONTROL

TORQUE CONVERTER LOCK-UP

1 article

• TORQUE CONVERTER LOCK-UP

TOWING/STEEP GRADIENTS

1 article

• TOWING/STEEP GRADIENTS

COMPONENT LOCATIONS

1 article

• COMPONENT LOCATIONS 1

TROUBLE SHOOTING

1 article

• TROUBLE SHOOTING

PRELIMINARY INSPECTION

1 article

• PRELIMINARY INSPECTION

SYMPTOM DIAGNOSIS

1 article

• SYMPTOM DIAGNOSIS

Abrupt Or Jerky Gear Changes

1 article

• Abrupt Or Jerky Gear Changes

Harsh Gear Changes, Poor Gear Selection, Gear Slip Or Loss Of Drive Or Intermittent Failure Of Park Lock Function

1 article

• 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

1 article

• Large Amount Of Friction Material In Pan Or On Filter Screen

Loss Of Drive Or Slipping Transmission

1 article

• Loss Of Drive Or Slipping Transmission

Transmission Fluid Leaking Out Of Dipstick Tube

1 article

• Transmission Fluid Leaking Out Of Dipstick Tube

Transmission Shifting Erratically

1 article

• Transmission Shifting Erratically

Transmission Slipping On Acceleration, Erratic Upshifts, Vehicle Jerking While Accelerating Or Engine Revs (Flares) On Upshift

1 article

• Transmission Slipping On Acceleration, Erratic Upshifts, Vehicle Jerking While Accelerating Or Engine Revs (Flares) On Upshift

TORQUE CONVERTER ROAD TEST

1 article

• TORQUE CONVERTER ROAD TEST

HYDRAULIC PRESSURE TESTS

1 article

• HYDRAULIC PRESSURE TESTS 1

STALL SPEED TEST

1 article

• STALL SPEED TEST

CLUTCH & SERVO AIR CHECKS

1 article

• CLUTCH & SERVO AIR CHECKS

TEST PROCEDURE

1 article

• TEST PROCEDURE 1

POWER OR COMMUNICATION LOST TO ELECTRONIC AUTOMATIC TRANSMISSION ELECTRONIC CONTROL UNIT

1 article

• POWER OR COMMUNICATION LOST TO ELECTRONIC AUTOMATIC TRANSMISSION ELECTRONIC CONTROL UNIT

RETRIEVING DIAGNOSTIC TROUBLE CODES

1 article

• RETRIEVING DIAGNOSTIC TROUBLE CODES

SYSTEM MONITORS

1 article

• SYSTEM MONITORS

End Of Line Programming Monitoring

1 article

• End Of Line Programming Monitoring 1

Gear Ratio Functional Check Monitoring

1 article

• Gear Ratio Functional Check Monitoring 1

Pressure Regulator Solenoid Monitoring

1 article

• Pressure Regulator Solenoid Monitoring 1

Shift Solenoids Monitoring

1 article

• Shift Solenoids Monitoring 1

System Interface Monitoring

1 article

• System Interface Monitoring 2

Torque Converter Clutch Solenoid Monitoring

1 article

• Torque Converter Clutch Solenoid Monitoring 1

Transmission Control Module Monitoring

1 article

• Transmission Control Module Monitoring 1

DIAGNOSTIC TROUBLE CODE DEFINITIONS

1 article

• DIAGNOSTIC TROUBLE CODE DEFINITIONS

CLEARING DIAGNOSTIC TROUBLE CODES

1 article

• CLEARING DIAGNOSTIC TROUBLE CODES

SUMMARY

1 article

• SUMMARY

FAULT CODE 01: TRANSMISSION RELAY CONTROL (RELAY STICKS, SHORT CIRCUIT)/SOLENOID VALVES POWER SUPPLY RELAY STICKING OPEN OR SHORT CIRCUIT

1 article

• FAULT CODE 01: TRANSMISSION RELAY CONTROL (RELAY STICKS, SHORT CIRCUIT)/SOLENOID VALVES POWER SUPPLY RELAY STICKING OPEN OR SHORT CIRCUIT 3

FAULT CODE 02: TRANSMISSION RELAY CONTROL (RELAY STICKS, OPEN CIRCUIT)/SOLENOID VALVES POWER SUPPLY RELAY STICKING CLOSED OR OPEN CIRCUIT

1 article

• FAULT CODE 02: TRANSMISSION RELAY CONTROL (RELAY STICKS, OPEN CIRCUIT)/SOLENOID VALVES POWER SUPPLY RELAY STICKING CLOSED OR OPEN CIRCUIT 3

FAULT CODE 03: EEPROM COMMUNICATION FAULT/ECU FAULT, EEPROM COMMUNICATION

1 article

• FAULT CODE 03: EEPROM COMMUNICATION FAULT/ECU FAULT, EEPROM COMMUNICATION 2

FAULT CODE 04: EEPROM CHECKSUM FAULT/ECU EEPROM CHECKSUM

1 article

• FAULT CODE 04: EEPROM CHECKSUM FAULT/ECU EEPROM CHECKSUM 2

FAULT CODE 05: TORQUE CONVERTER LOCK-UP CLUTCH MONITORING/TORQUE CONVERTER LOCK-UP CLUTCH FAULT

1 article

• FAULT CODE 05: TORQUE CONVERTER LOCK-UP CLUTCH MONITORING/TORQUE CONVERTER LOCK-UP CLUTCH FAULT 3

FAULT CODE 06: WATCHDOG CHECK, ECU FAULT

1 article

• FAULT CODE 06: WATCHDOG CHECK, ECU FAULT 2

FAULT CODE 08: SOLENOID VALVE 1 CHECK (SHORT CIRCUIT TO VOLTAGE)/SHIFT SOLENOID (MV1) SHORT CIRCUIT

1 article

• FAULT CODE 08: SOLENOID VALVE 1 CHECK (SHORT CIRCUIT TO VOLTAGE)/SHIFT SOLENOID (MV1) SHORT CIRCUIT 2

FAULT CODE 09: SOLENOID VALVE 2 CHECK (SHORT CIRCUIT TO VOLTAGE)/SHIFT SOLENOID (MV2) SHORT CIRCUIT

1 article

• FAULT CODE 09: SOLENOID VALVE 2 CHECK (SHORT CIRCUIT TO VOLTAGE)/SHIFT SOLENOID (MV2) SHORT CIRCUIT 2

FAULT CODE 10: PRESSURE REGULATOR CHECK (SHORT CIRCUIT TO VOLTAGE)/PRESSURE REGULATING SOLENOID (MV4) SHORT CIRCUIT

1 article

• FAULT CODE 10: PRESSURE REGULATOR CHECK (SHORT CIRCUIT TO VOLTAGE)/PRESSURE REGULATING SOLENOID (MV4) SHORT CIRCUIT 2

FAULT CODE 11: CAN MESSAGE MD-REIB INVALID (FFH)/CAN MESSAGE: ENGINE FRICTION INVALID

1 article

• FAULT CODE 11: CAN MESSAGE MD-REIB INVALID (FFH)/CAN MESSAGE: ENGINE FRICTION INVALID 2

FAULT CODE 12: MES LINE 1 FAULT/BECM TO MESSAGE CENTER CIRCUIT FAULT

1 article

• FAULT CODE 12: MES LINE 1 FAULT/BECM TO MESSAGE CENTER CIRCUIT FAULT 2

FAULT CODE 13: MES LINE 2 FAULT/BECM TO MESSAGE CENTER CIRCUIT FAULT

1 article

• FAULT CODE 13: MES LINE 2 FAULT/BECM TO MESSAGE CENTER CIRCUIT FAULT 2

FAULT CODE 14: GEAR POSITION SWITCH MONITORING (PERMANENT)/GEAR POSITION SWITCH INCORRECT OUTPUTS

1 article

• FAULT CODE 14: GEAR POSITION SWITCH MONITORING (PERMANENT)/GEAR POSITION SWITCH INCORRECT OUTPUTS 8

FAULT CODE 15: CAN LEVEL MONITORING

1 article

• FAULT CODE 15: CAN LEVEL MONITORING 2

FAULT CODE 16: CAN BUS MONITORING/CAN BUS FAULT

1 article

• FAULT CODE 16: CAN BUS MONITORING/CAN BUS FAULT 3

FAULT CODE 17: CAN TIME-OUT MONITORING

1 article

• FAULT CODE 17: CAN TIME-OUT MONITORING 3

FAULT CODE 18: CAN MESSAGE WFPDK (THROTTLE ANGLE) IN INVALID (FFH)/CAN MESSAGE: THROTTLE POSITION INVALID

1 article

• FAULT CODE 18: CAN MESSAGE WFPDK (THROTTLE ANGLE) IN INVALID (FFH)/CAN MESSAGE: THROTTLE POSITION INVALID 2

FAULT CODE 19: CAN MESSAGE T-MOT INVALID (FFH)/CAN MESSAGE: ENGINE TEMPERATURE INVALID

1 article

• FAULT CODE 19: CAN MESSAGE T-MOT INVALID (FFH)/CAN MESSAGE: ENGINE TEMPERATURE INVALID 2

FAULT CODE 20: CAN MESSAGE V3 (ROAD SPEED) INVALID (FFH)/CAN MESSAGE: ROAD SPEED INVALID

1 article

• FAULT CODE 20: CAN MESSAGE V3 (ROAD SPEED) INVALID (FFH)/CAN MESSAGE: ROAD SPEED INVALID 2

FAULT CODE 21: DOWNSHIFT SAFETY MONITORING/DOWNSHIFT SAFETY MONITOR PREVENTED DOWNSHIFT WHICH WOULD HAVE CAUSED ENGINE OVERSPEED

1 article

• FAULT CODE 21: DOWNSHIFT SAFETY MONITORING/DOWNSHIFT SAFETY MONITOR PREVENTED DOWNSHIFT WHICH WOULD HAVE CAUSED ENGINE OVERSPEED 3

FAULT CODE 22: STALL SPEED MONITORING/TORQUE CONVERTER SLIPPING

1 article

• FAULT CODE 22: STALL SPEED MONITORING/TORQUE CONVERTER SLIPPING 3

FAULT CODE 23: GEAR POSITION SWITCH DURING CRANKING/GEAR POSITION SWITCH INCORRECT OUTPUTS

1 article

• FAULT CODE 23: GEAR POSITION SWITCH DURING CRANKING/GEAR POSITION SWITCH INCORRECT OUTPUTS 2

FAULT CODE 24: BATTERY SUPPLY CHECK/BATTERY SUPPLY BELOW 9 VOLTS WHILE ENGINE IS RUNNING

1 article

• FAULT CODE 24: BATTERY SUPPLY CHECK/BATTERY SUPPLY BELOW 9 VOLTS WHILE ENGINE IS RUNNING 2

FAULT CODE 25: SOLENOID VALVE FOR TC (SHORT CIRCUIT TO GROUND, OR OPEN CIRCUIT)/TORQUE CONVERTER LOCK-UP SOLENOID (MV3) OPEN CIRCUIT

1 article

• FAULT CODE 25: SOLENOID VALVE FOR TC (SHORT CIRCUIT TO GROUND, OR OPEN CIRCUIT)/TORQUE CONVERTER LOCK-UP SOLENOID (MV3) OPEN CIRCUIT 2

FAULT CODE 26: SOLENOID VALVE 1 (LINE SHORT CIRCUIT GROUND, OR OPEN CIRCUIT)/SHIFT SOLENOID (MV1) OPEN CIRCUIT

1 article

• FAULT CODE 26: SOLENOID VALVE 1 (LINE SHORT CIRCUIT GROUND, OR OPEN CIRCUIT)/SHIFT SOLENOID (MV1) OPEN CIRCUIT 2

FAULT CODE 27: SOLENOID VALVE 2 (LINE SHORT CIRCUIT GROUND, OR OPEN CIRCUIT)/SHIFT SOLENOID (MV2) OPEN CIRCUIT

1 article

• FAULT CODE 27: SOLENOID VALVE 2 (LINE SHORT CIRCUIT GROUND, OR OPEN CIRCUIT)/SHIFT SOLENOID (MV2) OPEN CIRCUIT 2

FAULT CODE 28: PRESSURE REGULATOR (LINE SHORT CIRCUIT TO GROUND, OR OPEN CIRCUIT)/PRESSURE REGULATING SOLENOID (MV4) OPEN CIRCUIT

1 article

• FAULT CODE 28: PRESSURE REGULATOR (LINE SHORT CIRCUIT TO GROUND, OR OPEN CIRCUIT)/PRESSURE REGULATING SOLENOID (MV4) OPEN CIRCUIT 2

FAULT CODE 29: GEAR RATIO MONITORING, 1ST GEAR/RATIO MONITORING IMPLAUSIBLE 1ST GEAR RATIO

1 article

• FAULT CODE 29: GEAR RATIO MONITORING, 1ST GEAR/RATIO MONITORING IMPLAUSIBLE 1ST GEAR RATIO 4

FAULT CODE 30: GEAR RATIO MONITORING, 2ND GEAR/RATIO MONITORING IMPLAUSIBLE 2ND GEAR RATIO

1 article

• FAULT CODE 30: GEAR RATIO MONITORING, 2ND GEAR/RATIO MONITORING IMPLAUSIBLE 2ND GEAR RATIO 4

FAULT CODE 31: GEAR RATIO MONITORING, 3RD GEAR/RATIO MONITORING IMPLAUSIBLE 3RD GEAR RATIO

1 article

• FAULT CODE 31: GEAR RATIO MONITORING, 3RD GEAR/RATIO MONITORING IMPLAUSIBLE 3RD GEAR RATIO 4

FAULT CODE 32: GEAR RATIO MONITORING, 4TH GEAR/RATIO MONITORING IMPLAUSIBLE 4TH GEAR RATIO

1 article

• FAULT CODE 32: GEAR RATIO MONITORING, 4TH GEAR/RATIO MONITORING IMPLAUSIBLE 4TH GEAR RATIO 4

FAULT CODE 33: CAN MESSAGE MD-IND INVALID, INDICATED BY F-TL-MES/CAN MESSAGE: ENGINE TORQUE INVALID

1 article

• FAULT CODE 33: CAN MESSAGE MD-IND INVALID, INDICATED BY F-TL-MES/CAN MESSAGE: ENGINE TORQUE INVALID 2

FAULT CODE 34: CAN MESSAGE MD-IND INVALID (FFH)/CAN MESSAGE: ENGINE TORQUE INVALID

1 article

• FAULT CODE 34: CAN MESSAGE MD-IND INVALID (FFH)/CAN MESSAGE: ENGINE TORQUE INVALID 2

FAULT CODE 35: CAN MESSAGE N-MOT INVALID, INDICATED BY F-N-MOT/CAN MESSAGE: ENGINE SPEED INVALID

1 article

• FAULT CODE 35: CAN MESSAGE N-MOT INVALID, INDICATED BY F-N-MOT/CAN MESSAGE: ENGINE SPEED INVALID 2

FAULT CODE 37: CAN MESSAGE T-ANS INVALID (FFH)/CAN MESSAGE: ENGINE AIR INTAKE TEMPERATURE INVALID

1 article

• FAULT CODE 37: CAN MESSAGE T-ANS INVALID (FFH)/CAN MESSAGE: ENGINE AIR INTAKE TEMPERATURE INVALID 2

FAULT CODE 38: CAN MESSAGE FHOEHE INVALID (FFH)/CAN MESSAGE: ALTITUDE SHIFT CONTROL INVALID

1 article

• FAULT CODE 38: CAN MESSAGE FHOEHE INVALID (FFH)/CAN MESSAGE: ALTITUDE SHIFT CONTROL INVALID 2

FAULT CODE 39: RANGE SWITCH PLAUSIBILITY ERROR/TRANSMISSION HIGH/LOW RANGE IMPLAUSIBLE INPUT

1 article

• FAULT CODE 39: RANGE SWITCH PLAUSIBILITY ERROR/TRANSMISSION HIGH/LOW RANGE IMPLAUSIBLE INPUT 9