Infiniti G37 Coupe. Manual — part 935

MWI-86

< ECU DIAGNOSIS >

UNIFIED METER AND A/C AMP.

NOTE:

Some items are not available according to vehicle specification.

TERMINAL LAYOUT

AT P MODE SW

Ignition switch
ON

NOTE:
This item is displayed, but cannot be moni-
tored.

Off

M RANGE SW

Ignition switch
ON

Selector lever DS position

On

Other than the above

Off

NM RANGE SW

Ignition switch
ON

Selector lever DS position

Off

Other than the above

On

AT SFT UP SW

Ignition switch
ON

Selector lever up position

On

Other than the above

Off

AT SFT DWN SW

Ignition switch
ON

Selector lever – position

On

Other than the above

Off

ST SFT UP SW

Ignition switch
ON

Paddle shifter up operation

On

Other than the above

Off

ST SFT DWN SW

Ignition switch
ON

Paddle shifter down operation

On

Other than the above

Off

COMP F/B SIG

Ignition switch
ON

A/C compressor activation condition

On

A/C compressor deactivation condition

Off

4WD LOCK SW

Ignition switch
ON

NOTE:
This item is displayed, but cannot be moni-
tored.

Off

PKB SW

Ignition switch
ON

Parking brake applied

On

Parking brake released

Off

BUCKLE SW

Ignition switch
ON

Seat belt (driver side) unfastened

On

Seat belt (driver side) fastened

Off

BRAKE OIL SW

Ignition switch
ON

Brake fluid level is lower than the low level

On

Brake fluid level is normal

Off

DISTANCE
[km]

Ignition switch
ON

—

Possible driving distance calculated by
unified meter and A/C amp.

OUTSIDE TEMP
[

°

C] or [

°

F]

Ignition switch
ON

—

Equivalent to ambient temperature
NOTE:
This may not match the indicated val-
ue on the information display.

FUEL LOW SIG

Ignition switch
ON

Low-fuel warning signal output

On

Low-fuel warning signal not output

Off

BUZZER

Ignition switch
ON

Buzzer ON

On

Buzzer OFF

Off

Monitor Item

Condition

Value/Status

JSNIA0097ZZ

MWI

UNIFIED METER AND A/C AMP.

MWI-87

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

PHYSICAL VALUES

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

4

(P)

Ground

Stop lamp switch signal

Input

Ignition
switch
OFF

Brake pedal is depressed

12 V

Other than the above

0 V

5

(L)

Ground

Manual mode shift up sig-
nal

Input

Ignition
switch
ON

Selector lever up position

0 V

Other than the above

12 V

6

(O)

Ground

Paddle shifter up signal

Input

Ignition
switch
ON

Paddle shifter up operation

0 V

Other than the above

12 V

7

(GR)

Ground

Communication signal
(AMP.

→

METER)

Output

Ignition
switch
ON

—

8

(L)

Ground

Vehicle speed signal output
(2-pulse)

Output

Ignition
switch
ON

Speedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)]

NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).

9

(SB)

Ground

Seat belt buckle switch sig-
nal (driver side)

Input

Ignition
switch
ON

When seat belt (driver side)
is fastened

12 V

When seat belt (driver side)
is unfastened

0 V

10

(W)

Ground

Manual mode signal

Input

Ignition
switch
ON

Selector lever DS position

0 V

Other than the above

12 V

11

(G)

Ground

Not manual mode signal

Input

Ignition
switch
ON

Selector lever DS position

12 V

Other than the above

0 V

14

(BR)

Ground

Communication signal
(LCD

→

AMP.)

Input

Ignition
switch
ON

—

25

(V)

Ground

Manual mode shift down
signal

Input

Ignition
switch
ON

Selector lever down posi-
tion

0 V

Other than the above

12 V

26

(G)

Ground

Paddle shift down signal

Input

Ignition
switch
ON

Paddle shifter down opera-
tion

0 V

Other than the above

12 V

SKIA3362E

JSNIA0015GB

JSNIA0028GB

MWI-88

< ECU DIAGNOSIS >

UNIFIED METER AND A/C AMP.

27

(LG)

Ground

Communication signal
(METER

→

AMP.)

Input

Ignition
switch
ON

—

28

(R)

Ground

Vehicle speed signal output
(8-pulse)

Output

Ignition
switch
ON

Speedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)]

NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).

30

(V)

Ground

Parking brake switch signal

Input

Ignition
switch
ON

Parking brake applied

0 V

Parking brake released

34

(Y)

Ground

Communication signal
(AMP.

→

LCD)

Output

Ignition
switch
ON

—

41

(L)

Ground

ACC power supply

Input

Ignition
switch
ACC

—

Battery voltage

42

(BR)

Ground

Fuel level sensor signal

Input

Ignition
switch
ON

—

45

(V)

Ground

Ambient sensor signal

Input

—

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

SKIA3361E

JSNIA0012GB

JSNIA0007GB

JSNIA0027GB

JSNIA0013GB

JSNIA0014GB

MWI

UNIFIED METER AND A/C AMP.

MWI-89

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

53

(W)

Ground

Ignition signal

Input

Ignition
switch
ON

—

Battery voltage

54

(Y)

Ground

Battery power supply

Input

Ignition
switch
OFF

—

Battery voltage

55

(B)

Ground

Ground

—

Ignition
switch
ON

—

0 V

56

(L)

Ground

CAN-H

—

—

—

—

57

(BR)

Ground

Brake fluid level switch sig-
nal

Input

Ignition
switch
ON

Brake fluid level is normal.

The brake fluid level is low-
er than the low level

0 V

58

(Y)

Ground

Fuel level sensor signal
ground

—

Ignition
switch
ON

—

0 V

61

(R)

Ground

Ambient sensor signal
ground

—

Ignition
switch
ON

—

0 V

71

(GR)

Ground

Ground

—

Ignition
switch
ON

—

0 V

72

(P)

Ground

CAN-L

—

—

—

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JSNIA0008GB