Infiniti FX35, FX50 (S51). Manual - part 1871

 

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Infiniti FX35, FX50 (S51). Manual - part 1871

 

 

P1815 M-MODE SWITCH

TM-291

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

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Diagnosis Procedure

INFOID:0000000005250299

1.

CHECK MANUAL MODE SWITCH CIRCUIT

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “MANU MODE SW”, “NON M MODE SW”, “UP SW LEVER”, “DOWN SW LEVER”, “SFT UP ST
SW”* and “SFT DWN ST SW”* in “Data Monitor” in “TRANSMISSION”.

3.

Check the ON/OFF operations of each monitor item.

*: With paddle shifter

 Without CONSULT-III

Drive the vehicle in the manual mode, and then check that the indication of the shift position indicator matches
with the actual gear position.
1.

Shift the selector lever to UP side, and then accelerate from 1GR to 7GR.

2.

Shift the selector lever to DOWN side, and then decelerate from 7GR to 1GR.

3.

*Shift the paddle shifter to UP side, and then accelerate from 1GR to 7GR.

4.

*Shift the paddle shifter to DOWN side, and then decelerate from 7GR to 1GR.

*: With paddle shifter
Which item is abnormal?

Manual mode switch>>GO TO 2.
Paddle shifter>>GO TO 7.

2.

CHECK MANUAL MODE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect A/T shift selector connector.

3.

Turn ignition switch ON.

4.

Check voltage between A/T shift selector vehicle side harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

Item

Monitor Item

Condition

Status

Manual mode switch

MANU MODE SW

Manual shift gate side (neutral)

ON

Other than the above

OFF

NON M-MODE SW

Manual shift gate side

OFF

Other than the above

ON

UP SW LEVER

Selector lever: UP (+ side)

ON

Other than the above

OFF

DOWN SW LEVER

Selector lever: DOWN (

 side)

ON

Other than the above

OFF

Paddle shifter*

SFT UP ST SW

Paddle shifter: UP (+ side)

ON

Other than the above

OFF

SFT DWN ST SW

Paddle shifter: DOWN (

 side)

ON

Other than the above

OFF

A/T shift selector vehicle side harness connector

Voltage (Approx.)

Connector

Terminal

+

M137

1

4

Battery voltage

2

3

5

TM-292

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

P1815 M-MODE SWITCH

3.

CHECK MANUAL MODE SWITCH

1.

Turn ignition switch OFF.

2.

Check manual mode switch. Refer to 

TM-294, "Component Inspection (Manual Mode Switch)"

.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Repair or replace damaged parts.

4.

CHECK GROUND CIRCUIT (MANUAL MODE SWITCH CIRCUIT)

1.

Turn ignition switch OFF.

2.

Check continuity between A/T shift selector vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK HARNESS BETWEEN A/T SHIFT SELECTOR AND UNIFIED METER AND A/C AMP. (STEP 1)

1.

Disconnect unified meter and A/C amp. connector.

2.

Check continuity between A/T shift selector vehicle side harness connector terminals and unified meter
and A/C amp. vehicle side harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts.

6.

CHECK HARNESS BETWEEN A/T SHIFT SELECTOR AND UNIFIED METER AND A/C AMP. (STEP 2)

Check continuity between A/T shift selector vehicle side harness connector terminals and ground.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Repair or replace damaged parts.

7.

CHECK PADDLE SHIFTER CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect paddle shifter connectors.

3.

Turn ignition switch ON.

4.

Check voltage between paddle shifter vehicle side harness connector terminals.

A/T shift selector vehicle side harness connector

Ground

Continuity

Connector

Terminal

M137

4

Existed

A/T shift selector vehicle side harness connector

Unified meter and A/C amp. vehicle side harness 

connector

Continuity

Connector

Terminal

Connector

Terminal

M137

1

M66

10

Existed

2

25

3

5

5

11

A/T shift selector vehicle side harness connector

Ground

Continuity

Connector

Terminal

M137

1

Not existed

2

3

5

P1815 M-MODE SWITCH

TM-293

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

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Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 9.

8.

CHECK PADDLE SHIFTER

Check paddle shifter. Refer to 

TM-294, "Component Inspection [Paddle Shifter (Shift-up)]"

TM-295, "Compo-

nent Inspection [Paddle Shifter (Shift-down)]"

.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Repair or replace damaged parts.

9.

CHECK GROUND CIRCUIT (PADDLE SHIFTER CIRCUIT)

1.

Turn ignition switch OFF.

2.

Check continuity between paddle shifter vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace damaged parts.

10.

CHECK HARNESS BETWEEN PADDLE SHIFTER AND UNIFIED METER AND A/C AMP. (PART 1)

1.

Disconnect unified meter and A/C amp. connector.

2.

Check continuity between paddle shifter vehicle side harness connector terminals and unified meter and
A/C amp. vehicle side harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace damaged parts.

11.

CHECK HARNESS BETWEEN PADDLE SHIFTER AND UNIFIED METER AND A/C AMP. (PART 2)

Check continuity between paddle shifter vehicle side harness connector terminals and ground.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Repair or replace damaged parts.

Paddle shifter vehicle side harness connector

Voltage (Approx.)

Connector

Terminal

+

M38

3

1

Battery  voltage

M39

Paddle shifter vehicle side harness connector

Ground

Continuity

Connector

Terminal

M38

1

Existed

M39

Paddle shifter vehicle side harness connector

Unified meter and A/C amp. vehicle side harness 

connector

Continuity

Connector

Terminal

Connector

Terminal

M38

3

M66

6

Existed

M39

26

Paddle shifter vehicle side harness connector

Ground

Continuity

Connector

Terminal

M38

3

Not existed

M39

TM-294

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B (VK50VE)]

P1815 M-MODE SWITCH

12.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Repair or replace damaged parts.

13.

CHECK UNIFIED METER AND A/C AMP.

1.

Reconnect all the connectors.

2.

Turn ignition switch ON.

3.

Select “M RANGE SW”, “NM RANGE SW”, “AT SFT UP SW”, “AT SFT DWN SW”, “ST SFT UP SW”* and
“ST SFT DWN SW”* on “Data Monitor” in “METER/M&A”.
*: With paddle shifter

4.

Check the ON/OFF operations of each monitor item. Refer to 

MWI-96, "Reference Value"

.

Is the inspection result normal?

YES

>> Replace A/T assembly. Refer to 

TM-362, "Exploded View"

.

NO

>> Replace unified meter and A/C amp. Refer to 

MWI-148, "Exploded View"

.

Component Inspection (Manual Mode Switch)

INFOID:0000000005250300

1.

CHECK MANUAL MODE SWITCH

Check continuity between A/T shift selector connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace A/T shift selector assembly. Refer to 

TM-350, "Exploded View"

.

Component Inspection [Paddle Shifter (Shift-up)]

INFOID:0000000005250301

1.

CHECK PADDLE SHIFTER (SHIFT-UP)

Check continuity between paddle shifter (shift-up) connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace paddle shifter (shift-up). Refer to 

TM-354, "Exploded View"

.

A/T shift selector connector

Condition

Continuity

Connector Terminal

M137

1

4

Selector lever is shifted to manual shift 
gate side

Existed

Other than the above

Not existed

2

Selector lever is shifted to – side

Existed

Other than the above

Not existed

3

Selector lever is shifted to + side

Existed

Other than the above

Not existed

5

Selector lever is shifted to manual shift 
gate side

Not existed

Other than the above

Existed

Paddle shifter (shift-up) connector

Condition

Continuity

Connector

Terminal

M38

1

3

Paddle shifter (shift-up) is 
pulled.

Existed

Other than the above

Not existed

 

 

 

 

 

 

 

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