Infiniti G35 (V35) Sedan. Manual - part 1368

TM-164

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P1815 MANUAL MODE SWITCH

P1815 MANUAL MODE SWITCH

Description

INFOID:0000000000957092

Manual mode switch is installed in A/T device. It transmits manual mode switch, shift up and shift down switch
signals to unified meter and A/C amp. then unified meter and A/C amp. transmits signals to TCM with CAN
communication.
Paddle shifter transmits shift up and shift down switch signals to unified meter and A/C amp., then unified
meter and A/C amp. transmits signals to TCM with CAN communication. (With paddle shifter)
TCM transmits the switch signals to unified meter and A/C amp. by CAN communication line. Then manual
mode switch position is indicated on the A/T indicator. For inspection, refer to 

TM-170

.

DTC Logic

INFOID:0000000000957093

DTC DETECTION LOGIC

*1: This is not an OBD-II self-diagnostic item.

*2: With paddle shifter

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

  With CONSULT-III

1.

Start the engine.

2.

Select “DATA MONITOR”.

3.

Drive vehicle and maintain the following conditions for at least 2 consecutive seconds.

Is “P1815 MANU MODE SW/CIRC” detected?

YES

>> Go to 

TM-164, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957094

1.

CHECK MANUAL MODE SWITCH CIRCUIT

  With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR”.

3.

Check the ON/OFF operations of each monitor item.

DTC

Item

(CONSULT-III screen terms)

Diagnostic item is detected 

when...

Possible cause

P1815

*1

MANU MODE SW/CIRC

• TCM monitors manual mode, 

non manual mode, up or 
down switch signal, and de-
tects as irregular when im-
possible input pattern occurs 
2 second or more.

• When shift up/down signal of 

paddle shifter continuously 
remains ON for 60 seconds. 
(With paddle shifter)

• Harness or connectors

(These switches circuit is 
open or shorted.)

• Manual mode select switch 

(Into control device)

• Manual mode position select 

switch (Into control device)

• Paddle shifter

*2

MANU MODE SW

: ON

P1815 MANUAL MODE SWITCH

TM-165

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

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*: With paddle shifter

  Without CONSULT-III

Drive the vehicle in the manual mode and shift the select lever and paddle shifter* to “UP (+ side)” or “DOWN
(

−

 side)” side (1st 

⇔

 5th gear). Check that the meter indicator coincides with the actual gear position.

*: With paddle shifter

Which item is abnormal?

A/T device>>GO TO 2.
Paddle shifter>>GO TO 5.

2.

CHECK MANUAL MODE SWITH

Check manual mode switch. Refer to 

TM-167, "Component Inspection (Manual Mode Switch)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK HARNESS BETWEEN A/T DEVICE HARNESS CONNECTR AND UNIFIED METER AND A/C

AMP. HARNESS CONNECTOR 

1.

Disconnect A/T device harness connector and unified meter and A/C amp. harness connector.

2.

Check continuity between A/T device harness connector and unified meter and A/C amp. harness con-
nector.

3.

If OK, check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace open circuit or short to ground and short to power in harness or connectors.

4.

CHECK GROUND CIRCUIT

1.

Check continuity between A/T device harness connector and ground.

Item

Monitor Item

Condition

Status

Manual mode switch

MANU MODE SW

Manual shift gate position (neutral)

ON

Other than the above

OFF

NON M-MODE SW

Manual shift gate position

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 device harness connector

Unified meter and A/C amp. harness connector

Continuity

Connector

Terminal

Connector

Terminal

M137

1

M66

10

Existed

2

25

Existed

3

5

Existed

5

11

Existed

TM-166

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P1815 MANUAL MODE SWITCH

2.

If OK, check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace open circuit or short to ground and short to power in harness or connectors.

5.

CHECK PADDLE SHIFTER

Check paddle shifter. Refer to 

TM-167, "Component Inspection (Paddle Shifter)"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace damaged parts.

6.

CHECK HARNESS BETWEEN PADDLE SHIFTER HARNESS CONNECTR AND UNIFIED METER AND

A/C AMP. HARNESS CONNECTOR 

1.

Disconnect paddle shifter harness connector and unified meter and a/c amp. harness connector.

2.

Check continuity between paddle shifter harness connector and unified meter and A/C amp. harness con-
nector.

3.

If OK, check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace open circuit or short to ground and short to power in harness or connectors.

7.

CHECK GROUND CIRCUIT 

1.

Check continuity between paddle shifter harness connector and ground.

2.

If OK, check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace open circuit or short to ground and short to power in harness or connectors.

8.

CHECK UNIFIED METER AND A/C AMP.

Check unified meter and A/C amp. Refer to 

MWI-20, "SHIFT POSITION INDICATOR : System Diagram"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace damaged parts.

9.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-168, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to 

TM-240, "Exploded View"

.

NO

>> Repair or replace damaged parts.

A/T device harness connector

Ground

Continuity

Connector

Terminal

M137

4

Existed

Paddle shifter harness connector

Unified meter and A/C amp. harness connector

Continuity

Connector

Terminal

Connector

Terminal

M32

3

M66

26

Existed

M39

3

6

Existed

Paddle shifter harness connector

Ground

Continuity

Connector

Terminal

M32

1

Existed

M39

1

Existed

P1815 MANUAL MODE SWITCH

TM-167

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

C

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H

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TM

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Component Inspection (Manual Mode Switch)

INFOID:0000000000957095

1.

CHECK MANUAL MODE SWITCH

Check continuity between terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace damaged parts. Refer to 

TM-232, "2WD : Exploded View"

 (2WD), 

TM-233,

"AWD : Exploded View"

 (AWD).

Component Inspection (Paddle Shifter)

INFOID:0000000000957096

1.

CHECK PADDLE SHIFTER

1.

Remove paddle shifter. Refer to 

TM-238, "Exploded View"

.

2.

Check continuity between terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace damaged parts. Refer to 

TM-238, "Exploded View"

.

A/T device harness connector

Condition

Continuity

Connector Terminal

Connector Terminal

M137

4

M137

5

Selector lever: Auto

Existed

Other than the above

No existed

1

4

Selector lever: Manual (Neutral)

Existed

Other than the above

No existed

3

4

Selector lever: UP (+ side)

Existed

Other than the above

No existed

2

4

Selector lever: DOWN (

−

 side)

Existed

Other than the above

No existed

Paddle shifter (shift-up)

Condition

Continuity

Connector

Terminal

Connector

Terminal

M39

1

M39

3

UP (+ side)

Existed

Other than the above

Not existed

Paddle shifter (shift-down)

Condition

Continuity

Connector

Terminal

Connector

Terminal

M32

1

M32

3

DOWN (

−

 side)

Existed

Other than the above

Not existed