Infiniti M35/M45 Y50. Manual — part 448

DTC P0133, P0153 A/F SENSOR 1

EC-265

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

Wiring Diagram

NBS004WY

BANK 1

TBWT0979E

EC-266

[VQ35DE]

DTC P0133, P0153 A/F SENSOR 1

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

2

SB

A/F sensor 1 heater
(bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 5V

16

G/W

A/F sensor 1 (bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 3.1V

35

BR/W

Approximately 2.6V

56

G

Approximately 2.3V

75

GR

Approximately 2.3V

PBIB1584E

DTC P0133, P0153 A/F SENSOR 1

EC-267

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

BANK 2

TBWT0980E

EC-268

[VQ35DE]

DTC P0133, P0153 A/F SENSOR 1

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

NBS004WZ

1.

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Loosen and retighten two ground screws on the body.
Refer to

EC-160, "Ground Inspection"

.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace ground connections.

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

24

O

A/F sensor 1 heater
(bank 2)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 5V

57

GR/L

A/F sensor 1 (bank 2)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 2.6V

58

LG/B

Approximately 2.3V

76

W/L

Approximately 3.1V

77

Y

Approximately 2.3V

PBIB1584E

1.

Body ground M70

2.

Body ground M16

PBIB2782E