Infiniti G37 Coupe. Manual — part 931

MWI-70

< ECU DIAGNOSIS >

COMBINATION METER

15

(B)

Ground

Ground

—

Ignition
switch
ON

—

0 V

16

(B)

Ground

Meter control switch ground

—

Ignition
switch
ON

—

0 V

21

(R)

Ground

Ignition signal

Input

Ignition
switch
ON

—

12 V

22

(B)

Ground

Ground

—

Ignition
switch
ON

—

0 V

24

(BR)

Ground

Communication signal
(LCD

→

AMP.)

Output

Ignition
switch
ON

—

25

(Y)

Ground

Communication signal
(AMP.

→

LCD)

Input

Ignition
switch
ON

—

26

(R)

Ground

Vehicle speed signal
(8-pulse)

Input

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).

27

(O)

Ground

Parking brake switch signal

Input

Ignition
switch
ON

Parking brake applied

0 V

Parking brake released

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JSNIA0028GB

JSNIA0027GB

JSNIA0012GB

JSNIA0007GB

MWI

COMBINATION METER

MWI-71

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

*1: With A/T models

*2: With M/T models

28

(LG)

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

29

(L

*1

or

LG

*2

)

Ground

Seat belt buckle switch sig-
nal (driver side)

Input

Ignition
switch
ON

When driver seat belt is fas-
tened

12 V

When driver seat belt is un-
fastened

0 V

30

(G)

Ground

Seat belt buckle switch sig-
nal (passenger side)

Input

Ignition
switch
ON

• When getting in the pas-

senger seat

• When passenger seat

belt is fastened

12 V

• When getting in the pas-

senger seat

• When passenger seat

belt is unfastened

0 V

31

(L)

Ground

Washer level switch signal

Input

Ignition
switch
ON

Washer level switch ON

0 V

Washer level switch OFF

5 V

34

(R)

Ground

Illumination control signal

Output

Ignition
switch
ON

Lighting switch ON, then
operate the illumination
control switch.

NOTE:
When brightness level is midway

36

(LG)

16

(B)

Select switch signal

Input

Ignition
switch
ON

When

is

pressed

0 V

Other than the above

5 V

37

(SB)

16

(B)

Enter switch signal

Input

Ignition
switch
ON

When

is pressed

0 V

Other than the above

5 V

38

(L)

16

(B)

Trip A/B reset switch signal

Input

Ignition
switch
ON

When trip A/B reset switch
is pressed

0 V

Other than the above

5 V

39

(P)

16

(B)

Illumination control switch
signal (–)

Input

Ignition
switch
ON

When

switch is

pressed

0 V

Other than the above

5 V

40

(O)

16

(B)

Illumination control switch
signal (+)

Input

Ignition
switch
ON

When

switch

is

pressed

0 V

Other than the above

5 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JSNIA0008GB

JSNIA0010GB

MWI-72

< ECU DIAGNOSIS >

COMBINATION METER

Wiring Diagram - METER -

INFOID:0000000001606695

JCNWA0436GB

MWI

COMBINATION METER

MWI-73

< ECU DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

JCNWA0437GB