Range Rover Automatic Transmission. Manual - part 14

System Information Document

____________________________________________________________________________________________________
_
[ZF_4SPD\Project_Specs]

[Revision:   2.3]

____________________________________________________________________________________________________
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© Rover Group 1998

Page 27 of 52

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

25

Solenoid valve for TC  (short circuit to - or open circuit)

P0743

N_MOT

AN8

UBATT

Pin 32 (Solenoid valve for torque convertor lockup) is either short circuit to 0V or open circuit.

Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

Torque converter = locked

Time between fault present & fault stored:

20 ms

Variables used by the diagnostic:

Status of torque converter drive, Battery voltage

Will limp home mode be selected:

Yes

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

26

Solenoid valve 1 (line short circuit to - or open circuit)

P0753

N_MOT

AN6

UBATT

Pin 30 (Solenoid valve 1) is either short circuit to 0V or open circuit.

Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

Solenoid valve 1 = on

Time between fault present & fault stored:

20ms

Variables used by the diagnostic:

Status of Solenoid valve 1, Battery voltage

Will limp home mode be selected:

Yes

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

27

Solenoid valve 2 (line short circuit to - or open circuit)

P0758

N_MOT

AN7

UBATT

Pin 33 (Solenoid valve 2) is either short circuit to 0V or open circuit.

Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

Solenoid valve 2 = on

Time between fault present & fault stored:

20 ms

Variables used by the diagnostic:

Status of Solenoid valve 1, Battery voltage

Will limp home mode be selected:

Yes

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

28

Pressure regulator  (line short circuit to - or open circuit)

P0748

N_MOT

VGT_$X

UBATT

Pin 5 (pressure regulator) is either short circuit to 0V or open circuit.

Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

None

Time between fault present & fault stored:

20 ms

Variables used by the diagnostic:

Status of low side pressure regulator driver

Will limp home mode be selected:

Yes

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

29

Gear ratio monitoring, 1st gear

P0731

N_MOT

VGT_$X

MMM

Ratio of engine speed to output shaft speed whilst 1st gear is engaged is out of range.

Diagnostic operates:

NAS vehicles only, Continuously

Conditions to be met to run Diagnostic:

1

st

 gear selected, gear shift not in progress

Time between fault present & fault stored:

800 ms

Variables used by the diagnostic:

Engine Speed, Engine Torque, Output shaft speed, Selected gear

Will limp home mode be selected:

No

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

System Information Document

____________________________________________________________________________________________________
_
[ZF_4SPD\Project_Specs]

[Revision:   2.3]

____________________________________________________________________________________________________
_
© Rover Group 1998

Page 28 of 52

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

30

Gear ratio monitoring, 2nd gear

P0732

N_MOT

VGT_$X

MMM

Ratio of engine speed to output shaft speed whilst 2nd gear is engaged is out of range.

Diagnostic operates:

NAS vehicles only, Continuously

Conditions to be met to run Diagnostic:

2

nd

 gear selected, gear shift not in progress

Time between fault present & fault stored:

800 ms

Variables used by the diagnostic:

Engine Speed, Engine Torque, Output shaft speed, Selected gear

Will limp home mode be selected:

No

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

31

Gear ratio monitoring, 3rd gear

P0733

N_MOT

VGT_$X

MMM

Ratio of engine speed to output shaft speed whilst 3rd gear is engaged is out of range.

Diagnostic operates:

NAS vehicles only, Continuously

Conditions to be met to run Diagnostic:

3

rd

 gear selected, gear shift not in progress

Time between fault present & fault stored:

800 ms

Variables used by the diagnostic:

Engine Speed, Engine Torque, Output shaft speed, Selected gear

Will limp home mode be selected:

No

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

32

Gear ratio monitoring, 4th gear

P0734

N_MOT

VGT_$X

MMM

Ratio of engine speed to output shaft speed whilst 4th gear is engaged is out of range.

Diagnostic operates:

NAS vehicles only, Continuously

Conditions to be met to run Diagnostic:

4th gear selected, gear shift not in progress

Time between fault present & fault stored:

800 ms

Variables used by the diagnostic:

Engine Speed, Engine Torque, Output shaft speed, Selected gear

Will limp home mode be selected:

No

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

33

CAN message MD_IND invalid, indicated by F_TL_MES

P1884

N_MOT

VGT_$X

MMM

The CAN message from the engine management controller which informs the transmission of the engine torque is invalid.

Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

None

Time between fault present & fault stored:

10 ms

Variables used by the diagnostic:

CAN message F_TL_MES

Will limp home mode be selected:

No

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

34

CAN message MD_IND invalid (FFh)

P1884

N_MOT

VGT_$X

MMM

The CAN message from the engine management controller which informs the transmission of the engine torque is invalid.

Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

None

Time between fault present & fault stored:

10 ms

Variables used by the diagnostic:

CAN message MD_IND

Will limp home mode be selected:

No, substitute engine torque used.

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

System Information Document

____________________________________________________________________________________________________
_
[ZF_4SPD\Project_Specs]

[Revision:   2.3]

____________________________________________________________________________________________________
_
© Rover Group 1998

Page 29 of 52

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

35

CAN message N_MOT invalid, indicated by F_N_MOT

P1884

N_MOT

VGT_$X

MMM

The CAN message from the engine management controller which informs the transmission of the engine speed is invalid.

Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

None

Time between fault present & fault stored:

10 ms

Variables used by the diagnostic:

CAN message F_N_MOT

Will limp home mode be selected:

Yes

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

99MY Range Rover only, Discovery Series II dummy code.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

36

Transmission calibration selection incorrect / invalid

P1602

N_MOT

VGT_$X

MMM

An ECU has been fitted to a vehicle an not had the correct calibration selected, or no calibration has been selected.

Diagnostic operates:

During initialisation

Conditions to be met to run Diagnostic:

None

Time between fault present & fault stored:

10 ms

Variables used by the diagnostic:

Tune select status

Will limp home mode be selected:

No, default shift maps used (normally 4.0l calibration)

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

37

CAN message T_ANS invalid (FFh).

P1884

N_MOT

VGT_$X

MMM

The CAN message which informs the transmission of the air intake temperature is invalid.
Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

None

Time between fault present & fault stored:

10 ms

Variables used by the diagnostic:

CAN message T_ANS

Will limp home mode be selected:

No

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

38

CAN message FHOEHE invalid (FFh).

P1884

N_MOT

VGT_$X

MMM

The CAN message used to control the special altitude shift patterns is not correct.
Diagnostic operates:

Continuously

Conditions to be met to run Diagnostic:

None

Time between fault present & fault stored:

10 ms

Variables used by the diagnostic:

CAN message FHOEHE

Will limp home mode be selected:

No

Conditions to be met to clear the fault:

Ignition to be switched on whilst fault not present, engine cranked.

Fault

Description

CARB

Ambient 1

Ambient 2

Ambient 3

39

Range switch plausibility error

P1705

N_MOT

VGT_$X

MMM

The input received from the range switch input cannot be correct.  This may be due to not moving the lever fully, not
necessarily a faulty switch

Diagnostic operates:
Conditions to be met to run Diagnostic:

Road speed > 5km/h

Time between fault present & fault stored:

50 ms

Variables used by the diagnostic:

O/P shaft speed, Road speed (V3), Range Switch status

Will limp home mode be selected:
Conditions to be met to clear the fault:

System Information Document

____________________________________________________________________________________________________
_
[ZF_4SPD\Project_Specs]

[Revision:   2.3]

____________________________________________________________________________________________________
_
© Rover Group 1998

Page 30 of 52

5.3 Impact on the system of each fault

Settings are those for Range Rover, 99MY (Software release L944e1414, 4.0l & 4.6l V8, NAS only)

Priority

Control

Byte 2 – Protection & Default

Byte 1 – Protection & Default

Fault Number

Priority Byte

Control Byte

Byte 1 - Protection & default

Byte 2 - Protection & default

Priority level (0 – 7, Bits 5 – 7

MIL on with activation of substitute function

Diagnostic function enable

Delete error after 40 warm-up cycles

Fault is CARB relevant

Filtering depends on time

Filter counter not changed if test not fulfilled

After cranking, return to normal function if fault still present

Not used

Return to normal function in operation if error not present

Limphome

Max pressure

Flash Sport and Manual lights (Gearbox fault message in RR)

No 

Kickdown

Substitute throttle angle

Use calculate range, not Range switch input

Substitute engine temperature

Only E program allowed

Substitute engine torque

No 

adapitve pressure control

No adaptive shift point control

Maintain current gear in low range / Limphome in High

No CAN communication

No gear and lockup diagnostics

Don’t change status of MES line driver outputs

No Hot / High shift point & pressure 

adaption

1

224 244 32

7

7

1

1

1

1

1

1

1

1

1

2

224 244 32

7

7

1

1

1

1

1

1

1

1

1

3

225 244

0

0

7

1

1

1

1

1

1

4

224 240 32

7

7

1

1

1

1

1

1

1

1

5

96 244 32

0

3

1

1

1

1

1

1

6

224 244 32

7

7

1

1

1

1

1

1

1

1

1

7

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

8

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

9

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

10

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

11

96 244 164

0

3

1

1

1

1

1

1

1

1

12

0

212 64

0

0

1

1

1

1

1

13

0

212 64

0

0

1

1

1

1

1

14 224 252 40

6

7

1

1

1

1

1

1

1

1

1

1

15 224 244 56

6

7

1

1

1

1

1

1

1

1

1

1

16 224 228 40

6

7

1

1

1

1

1

1

1

1

17 224 236 40

6

7

1

1

1

1

1

1

1

1

1

18

96 244 166 156

3

1

1

1

1

1

1

1

1

1

1

1

1

1

19

96 212

0

64

3

1

1

1

1

1

20

96 212

0

0

3

1

1

1

1

21

96 244 40

6

3

1

1

1

1

1

1

1

1

1

22

96 244 40

6

3

1

1

1

1

1

1

1

1

1

23

96 244 40

6

3

1

1

1

1

1

1

1

1

1

24

96 244 40

6

3

1

1

1

1

1

1

1

1

1

25

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

26

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

27

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

28

96 252 32

7

3

1

1

1

1

1

1

1

1

1

1

29

96 244 32

0

3

1

1

1

1

1

1

30

96 244 32

0

3

1

1

1

1

1

1

31

96 244 32

0

3

1

1

1

1

1

1

32

96 244 32

0

3

1

1

1

1

1

1

33

96 244 164

0

3

1

1

1

1

1

1

1

1

34

96 244 165

0

3

1

1

1

1

1

1

1

1

1

35

96 244 40

6

3

1

1

1

1

1

1

1

1

1

36

96 244

0

4

3

1

1

1

1

1

1

37

96 212 128

0

3

1

1

1

1

1

38

96 212 128

0

3

1

1

1

1

1

39

0

0

0

0

0