Infiniti G37 Coupe. Manual — part 1417

WT-40

< COMPONENT DIAGNOSIS >

TPMS

JCEWA0011GB

TPMS

WT-41

< COMPONENT DIAGNOSIS >

C

D

F

G

H

I

J

K

L

M

A

B

WT

N

O

P

JCEWA0012GB

WT-42

< COMPONENT DIAGNOSIS >

TIRE PRESSURE RECEIVER

TIRE PRESSURE RECEIVER

Description

INFOID:0000000001686993

The tire pressure receiver receives the air pressure signal transmitted by the transmitter in each wheel.

Diagnosis Procedure

INFOID:0000000001686994

1.

CHECK TIRE PRESSURE RECEIVER

1.

Turn ignition OFF.

2.

Check tire pressure receiver connector M101 terminal 2 and ground signal with oscilloscope.

Is the reference signal inputted?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK TIRE PRESSURE RECEIVER INPUT VOLTAGE

1.

Disconnect tire pressure receiver connector.

2.

Check voltage between tire pressure receiver connector M101 terminal 4 and ground.

Is the reference voltage inputted?

YES

>> GO TO 3.

NO

>> Check BCM harness and connector.

3.

CHECK TIRE PRESSURE RECEIVER GROUND CIRCUIT

1.

Disconnect BCM harness connector and tire pressure receiver connector.

2.

Check continuity between BCM harness connector M123 terminal 137 and tire pressure receiver connec-
tor M101 terminal 1.

Also check harness for short to ground.

Is the inspection result normal?

Connector

Terminal

Condition

Voltage (Approx.)

M101

2

Ground

Standby state

When receiving signal from transmitter

OCC3879D

OCC3880D

(+)

(–)

Voltage (Approx.)

Tire pressure receiver

Ground

Connector

Terminal

M101

4

5.0 V

BCM

Tire pressure receiver

Continuity

Connector

Terminal

Connector

Terminal

M123

137

M101

1

Existed

TIRE PRESSURE RECEIVER

WT-43

< COMPONENT DIAGNOSIS >

C

D

F

G

H

I

J

K

L

M

A

B

WT

N

O

P

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK BCM CIRCUIT

Inspect the BCM circuit. Refer to

BCS-38, "Diagnosis Procedure"

.

Is the BCM circuit normal?

YES

>> Replace tire pressure receiver.

NO

>> Repair or replace BCM circuit. Replace BCM. Refer to

BCS-79, "Removal and Installation"

.