Infiniti M35/M45 Y50. Manual — part 358

COMBINATION METERS

DI-15

C

D

E

F

G

H

I

J

L

M

A

B

DI

Terminals and Reference Value for Combination Meter

NKS003U0

Terminal

No.

Wire

color

Item

Condition

Reference value

(Approx.)

Ignition

switch

Operation or condition

1

LG

Vehicle speed signal
(8-pulse)

ON

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

NOTE:
Maximum voltage may be 5 V due
to specifications (connected units).

2

L

Ignition switch ACC or ON

ACC

—

Battery voltage

9

B

Ground

ON

—

0 V

10

11

12

BR

Ignition switch ON or START

ON

—

Battery voltage

13

R/L

Illumination (+)

ON

Lighting switch is turned ON.

12 V

Lighting switch is turned OFF.

0 V

14

B/W

Illumination signal input

ON

Lighting switch is turned ON,
and illumination control switch
is operated.

<e.g.> When brightness level is

midway

Lighting switch is turned OFF.

0 V

15

R

RX communication line (From
unified meter and A/C amp.)

ON

—

16

G

TX communication line (To
unified meter and A/C amp.)

ON

—

23

W/G

Battery power supply

OFF

—

Battery voltage

PKIA1935E

SKIB4733E

SKIA3362E

SKIA3361E

DI-16

COMBINATION METERS

Terminals and Reference Value for Unified Meter and A/C Amp.

NKS003U1

Terminal

No.

Wire

color

Item

Condition

Reference value

(Approx.)

Ignition

switch

Operation or condition

7

R

TX communication line
(To combination meter)

ON

—

27

G

RX communication line
(From combination meter)

ON

—

28

LG

Vehicle speed signal output
(8-pulse)

ON

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

NOTE:
Maximum voltage may be 5 V due to
specifications (connected units).

41

V

Ignition switch ACC or ON

ACC

—

Battery voltage

42

P/L

Fuel level sensor signal

—

—

53

W/G

Ignition switch ON or START

ON

—

Battery voltage

54

W/G

Battery power supply

OFF

—

Battery voltage

55

B

Ground

ON

—

0 V

56

L

CAN–H

—

—

—

58

B

Fuel level sensor ground

ON

—

0 V

71

B

Ground (power)

ON

—

0 V

72

P

CAN–L

—

—

—

SKIA3362E

SKIA3361E

PKIA1935E

SKIB8867E

COMBINATION METERS

DI-17

C

D

E

F

G

H

I

J

L

M

A

B

DI

Self-Diagnosis Mode of Combination Meter

NKS003U2

SELF-DIAGNOSIS FUNCTION

●

Odo/trip meter segment and dot matrix LCD segment operation can be checked in self-diagnosis mode.

●

Meters/gauges can be checked in self-diagnosis mode.

OPERATION PROCEDURE

1.

Turn ignition switch ON, and switch the odo/trip meter to “trip A” or “trip B”.

NOTE:
If the diagnosis function is activated with “trip A” displayed, the mileage on “trip A” is reset to “0000.0”.
(The same way for “trip B”.)

2.

Turn ignition switch OFF.

3.

While pressing the odo/trip meter switch (1), turn ignition switch
ON again.

4.

Make sure that the trip meter displays “0000.0”.

5.

Press the odo/trip meter switch (1) at least 3 times. (Within 7
seconds after the ignition switch is turned ON.)

6.

The unified meter control unit is turned to self-diagnosis mode.

●

Dot in all segments of dot matrix LCD (1) flashes alternately.

●

All the segments on the odo/trip meter (2) illuminates.

●

Water temperature gauge and fuel gauge return to zero, and at the same time, low-fuel warning indica-
tor turns ON.

NOTE:

●

Check combination meter power supply and ground circuit when self-diagnosis mode of combination
meter does not start. Replace combination meter if normal.

●

If any of the segments is not displayed, replace combination meter.

7.

Each meter activates during pressing odo/trip meter switch.
(Then low-fuel warning lamp turns OFF.)

NOTE:
If any of the meter and gages is not activated, replace combina-
tion meter.

PKIB7633E

SKIB2939J

PKIB7636E

DI-18

COMBINATION METERS

CONSULT-II Function (METER A/C AMP)

NKS003U3

Refer to

DI-31, "CONSULT-II Function (METER A/C AMP)"

in “UNIFIED METER AND A/C AMP”.

Trouble Diagnosis

NKS003U4

HOW TO PERFORM TROUBLE DIAGNOSIS

1.

Confirm the symptom or customer complaint.

2.

Perform preliminary check. Refer to

DI-18, "PRELIMINARY CHECK"

.

3.

According to the symptom chart, make sure the cause of the symptom and repair or replace applicable
parts. Refer to

DI-18, "Symptom Chart"

.

4.

Does the meter operate normally? If yes, GO TO 5. If no, GO TO 2.

5.

INSPECTION END

PRELIMINARY CHECK

1.

CHECK OPERATION SELF-DIAGNOSIS MODE OF COMBINATION METER

Perform self-diagnosis mode of combination meter. Refer to

DI-17, "OPERATION PROCEDURE"

.

Does self-diagnosis mode operate?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK UNIFIED METER AND A/C AMP. (CONSULT-II)

Perform self-diagnosis of unified meter and A/C amp. Refer to

DI-31, "CONSULT-II Function (METER A/C

AMP)"

.

Self-diagnostic results content

No malfunction detected>>INSPECTION END
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT OF COMBINATION METER

Check power supply and ground circuit of combination meter. Refer to

DI-19, "Power Supply and Ground Cir-

cuit Inspection"

.

OK or NG

OK

>> Replace combination meter.

NG

>> Repair power supply and ground circuit of combination meter.

Symptom Chart

NKS003U5

Symptom

Diagnosis/Service procedure

Odo/trip meter indication is malfunction.

Refer to

DI-20, "Vehicle Speed Signal Inspection"

.

Tachometer indication is malfunction.

Refer to

DI-21, "Engine Speed Signal Inspection"

.

Water temperature gauge indication is malfunction.

Refer to

DI-22, "Engine Coolant Temperature Signal Inspection"

.

Fuel gauge indication is malfunction.

Refer to

DI-22, "Fuel Level Sensor Signal Inspection"

.

Low-fuel warning lamp indication is irregular.

A/T position indicator is malfunction.

Refer to

DI-58, "A/T Indicator Is Malfunction"

.