Infiniti G37 Coupe. Manual - part 928

MWI-58

< COMPONENT DIAGNOSIS >

METER CONTROL SWITCH SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000001606680

1.

CHECK METER CONTROL SWITCH UNIT

1.

Turn the ignition switch OFF.

2.

Disconnect the meter control switch connector.

3.

Check continuity of the meter control switch.

Is the inspection result OK?

YES

>> INSPECTION END

NO

>> Replace the meter control switch.

Combination meter

Ground

Continuity

Connector

Terminals

M53

16

Not existed

36

37

39

40

38

Connector

Terminal No.

Operation and status

Continuity

M54

2

7

When 

 (select) switch is pressed

Existed

Other than the above

Not existed

1

7

When 

 (enter) switch is pressed

Existed

Other than the above

Not existed

5

7

When trip A/B reset switch is pressed

Existed

Other than the above

Not existed

10

7

When 

 (illumination control) switch is 

pressed

Existed

Other than the above

Not existed

9

7

When 

 (illumination control) switch is 

pressed

Existed

Other than the above

Not existed

MWI

OIL PRESSURE SWITCH SIGNAL CIRCUIT

MWI-59

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

OIL PRESSURE SWITCH  SIGNAL CIRCUIT

Description

INFOID:0000000001606681

Detects the engine oil pressure and transmits the oil pressure switch signal to IPDM E/R.

Component Function Check

INFOID:0000000001606682

1.

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

1.

Connect the CONSULT-III.

2.

Select the “Data Monitor” for the “METER/M&A” and check the “OIL W/L” monitor value.

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001606683

1.

CHECK OIL PRESSURE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and oil pressure switch connector.

3.

Check continuity between IPDM E/R harness connector terminal and oil pressure switch harness connec-
tor terminal.

4.

Check continuity between IPDM E/R harness connector terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Component Inspection

INFOID:0000000001606684

1.

CHECK OIL PRESSURE SWITCH

Check continuity between oil pressure switch and ground.

Is the inspection result normal?

“OIL W/L”

Ignition switch ON

: On

Engine running

: Off

IPDM E/R

Oil pressure switch

Continuity

Connector

Terminal

Connector

Terminal

E6

75

F37

1

Existed

IPDM E/R

Ground

Continuity

Connector

Terminal

E6

75

Not existed

Condition

Continuity

Engine stopped

Existed

Engine running

Not existed

ELF0044D

MWI-60

< COMPONENT DIAGNOSIS >

OIL PRESSURE SWITCH SIGNAL CIRCUIT

YES

>> INSPECTION END

NO

>> Replace the oil pressure switch.

MWI

PARKING BRAKE SWITCH SIGNAL CIRCUIT

MWI-61

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

PARKING BRAKE SWITCH SIGNAL CIRCUIT

Description

INFOID:0000000001606685

Transmits the parking brake switch signal to the combination meter.

Component Function Check

INFOID:0000000001697518

1.

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

1.

Connect the CONSULT-III.

2.

Select the “Data Monitor” for the “METER/M&A” and check the “PKB SW” monitor value.

>> INSPECTION END

Diagnosis Procedure (A/T models)

INFOID:0000000001606686

1.

CHECK COMBINATION METER INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check the voltage and waveform between combination meter harness connector terminal and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and parking brake switch connector. 

3.

Check continuity between combination meter harness connector terminal and parking brake switch har-
ness connector terminal.

4.

Check continuity between combination meter harness connector terminal and ground.

“PKB SW”

Parking brake is applied

: On

Parking brake is released

: Off

Terminal

Condition

Voltage

(Approx.)

(+)

(–)

Combination meter

Connector

Terminal

M53

27

Ground

Parking brake applied

0 V

Parking brake released

JSNIA0007GB

Combination meter

Parking brake switch

Continuity

Connector

Terminal

Connector

Terminal

M53

27

E107

1

Existed