Infiniti QX56 (JA60). Manual - part 1021

WT-12

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

NOTE:
Before performing the self-diagnosis, be sure to register the ID, or the actual malfunction location may be different from that displayed on
CONSULT-III.

Active Test

Work Support

Self-Diagnosis (Without CONSULT-III)

INFOID:0000000005315450

SELF DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-III)

1. Turn ignition switch ON.

2. Ground the tire pressure warning check connector to initiate self diagnosis.

3. Compare the flashing pattern with the flash code chart below.

NOTE:

The system is normal when the low tire pressure warning lamp flashes 5 times and continues repeating.  Self-

diagnosis results are erased automatically by turning the ignition switch “OFF”.

WARNING LAMP

Ignition switch ON

Low tire pressure warning lamp on: On
Low tire pressure warning lamp off: Off

BUZZER

Ignition switch ON

Low tire pressure buzzer on: On
Low tire pressure buzzer off: Off

MONITOR

CONDITION

SPECIFICATION

Test item

Content

WARNING LAMP [On/Off]

Activates the low tire pressure warning lamp (On/Off).

ID REGIST WARNING [On/Off]

Activates the low tire pressure warning  buzzer (On/Off).

FLAT TIRE WARNING [On/Off]

Activates the low tire pressure warning buzzer (On/Off).

Test item

Content

ID REGIST

The identification number of the transmitter is registered in the BCM.

ID READ

The identification registration number of the transmitter is read by the BCM.

Flash Code

Malfunction part

Reference 

page

15
16
17
18

Tire pressure dropped below specified value.  Refer to 

WT-8, "System 

Description"

.

—

21
22
23
24

Transmitter no data (FL)
Transmitter no data (FR)
Transmitter no data (RR)
Transmitter no data (RL)

WT-14

31
32
33
34

Transmitter checksum error (FL)
Transmitter checksum error (FR)
Transmitter checksum error (RR)
Transmitter checksum error (RL)

WT-16

ALEIA0050GB

DIAGNOSIS SYSTEM (BCM)

WT-13

< FUNCTION DIAGNOSIS >

C

D

F

G

H

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K

L

M

A

B

WT

N

O

P

35
36
37
38

Transmitter pressure data error (FL)
Transmitter pressure data error (FR)
Transmitter pressure data error (RR)
Transmitter pressure data error (RL)

WT-18

41
42
43
44

Transmitter function code error (FL)
Transmitter function code error (FR)
Transmitter function code error (RR)
Transmitter function code error (RL)

WT-16

45
46
47
48

Transmitter battery voltage low (FL)
Transmitter battery voltage low (FR)
Transmitter battery voltage low (RR)
Transmitter battery voltage low (RL)

WT-16

52

Vehicle speed signal

WT-19

54

Vehicle ignition signal

WT-20

Flash Code

Malfunction part

Reference 

page

WT-14

< COMPONENT DIAGNOSIS >

C1708 - C1711 DATA FROM TRANSMITTER NOT BEING RECEIVED

COMPONENT DIAGNOSIS

C1708 - C1711 DATA FROM TRANSMITTER NOT BEING RECEIVED

Description

INFOID:0000000005148212

Tire pressure data for one or more transmitters is not being received by the BCM.

DTC Logic

INFOID:0000000005148213

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

ID REGISTRATION AND VEHICLE DRIVING

1. Carry out ID registration of all transmitters.

2. Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for

10 minutes.

3. Check all tire pressures with CONSULT-III within 5 minutes.
Does “DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?

YES

>> Inspection End.

NO

>> Refer to 

WT-14, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005148214

MALFUNCTION CODE NO. 21, 22, 23 OR 24 (DTC C1708, C1709, C1710 OR C1711)

1.

CHECK BCM

Drive for several minutes. Check all tire pressures with CONSULT-III.
Are all tire pressures displayed as 0 kPa?

YES

>> GO TO 2

NO

>> GO TO 3

2.

CHECK TIRE PRESSURE RECEIVER CONNECTOR

Check tire pressure receiver connector for damage or loose connection.
Is tire pressure receiver connector damaged or loose?

YES

>> Repair or replace tire pressure receiver connector.

NO

>> Replace BCM, then GO TO 3. Refer to 

BCS-59, "Removal and Installation"

.

3.

PERFORM ID REGISTRATION

Carry out ID registration of all transmitters. Refer to 

WT-6, "ID Registration Procedure"

.

Is there a tire that cannot register ID?

YES

>> Replace malfunctioning transmitter, then GO TO 5. Refer to 

WT-50, "Transmitter (Pressure Sen-

sor)"

.

NO

>> GO TO 4

4.

DRIVE VEHICLE

1. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.

2. Check all tire pressures with CONSULT-III within 15 minutes after vehicle speed becomes 17 km/h (11

MPH).

Does “DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?

DTC

CONSULT-III

DTC detecting condition

C1708

[NO - DATA] - FL

Data from FL transmitter cannot be received.

C1709

[NO - DATA] - FR

Data from FR transmitter cannot be received.

C1710

[NO - DATA] - RR

Data from RR transmitter cannot be received.

C1711

[NO - DATA] - RL

Data from RL transmitter cannot be received.

C1708 - C1711 DATA FROM TRANSMITTER NOT BEING RECEIVED

WT-15

< COMPONENT DIAGNOSIS >

C

D

F

G

H

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A

B

WT

N

O

P

YES

>> Inspection End.

NO

>> GO TO 5

5.

ID REGISTRATION AND VEHICLE DRIVING

1. Carry out ID registration of all transmitters.

2. Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for

10 minutes.

3. Check all tire pressures with CONSULT-III within 5 minutes.
Does “DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?

YES

>> Inspection End.

NO

>> Proceed to the inspection applicable to DTC.

Special Repair Requirement

INFOID:0000000005148215

Perform preliminary check.  Refer to 

WT-5, "Preliminary Check"

.