Infiniti FX35, FX50 (S51). Manual — part 1932
C1750, C1751, C1752, C1753 RECEIVER
WT-31
< DTC/CIRCUIT DIAGNOSIS >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
2.
Use an oscilloscope and check the input signal waveform between the low tire pressure warning control
unit harness connector terminals and ground. Refer to
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK TIRE PRESSURE RECEIVER POWER SUPPLY CIRCUIT
1.
Disconnect the tire pressure receiver harness connector.
2.
Check the voltage between the tire pressure receiver harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected part.
3.
CHECK TIRE PRESSURE RECEIVER GROUND CIRCUIT
1.
Disconnect the low tire pressure warning control unit harness connector and tire pressure receiver har-
ness connector.
2.
Check the continuity between the low tire pressure warning control unit harness connector and tire pres-
sure receiver harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected part.
4.
CHECK FOR CHANGE TO THE TIRE PRESSURE RECEIVER INSTALLATION POSITION. (EXAMPLE:
FRONT LH RECEIVER OK/NG JUDGMENT)
With CONSULT-III
1.
Exchange the front LH tire pressure receiver with the front RH tire pressure receivers.
2.
Perform “AIR PRESSURE MONITOR” self-diagnosis.
Is DTC “C1751” detected?
YES
>> Replace the front RH tire pressure receiver.
NO
>> Perform trouble diagnosis of the low tire pressure warning control unit. Refer to
Connector
Terminal
—
Standard
M96
3
Ground
Stand by status
(Approx. 4.5 V)
4
5
6
OCC3879D
Connector
Terminal
—
Voltage
E53 (Front LH)
1
Ground
7 - 16 V
E19 (Front RH)
B43 (Rear LH)
B251 (Rear RH)
Low tire pressure warning control unit
Tire pressure receiver
Continuity
M96
26
E53 (Front LH)
4
Existed
25
E19 (Front RH)
24
B43 (Rear LH)
23
B251 (Rear RH)
WT-32
< DTC/CIRCUIT DIAGNOSIS >
C1754 LOW TIRE PRESSURE WARNING CONTROL UNIT
C1754 LOW TIRE PRESSURE WARNING CONTROL UNIT
Description
INFOID:0000000005549626
• After the low tire pressure warning control unit (1) receives the tire
pressure signal from the tire pressure receiver, it controls the oper-
ation of the low tire pressure warning lamp and buzzer.
• Performs self-diagnosis of the Tire Pressure Monitoring System
(TPMS).
DTC Logic
INFOID:0000000005549627
DTC logic
DTC REPRODUCTION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
With CONSULT-III
1.
Drive for several minutes at a speed of 40 km/h (25 MPH) or more, then stop the vehicle.
2.
Stop the vehicle and perform “AIR PRESSURE MONITOR” self-diagnosis.
Is DTC “C1754” detected?
YES
>> Perform trouble diagnosis. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005549628
1.
CHECK POWER VOLTAGE
1.
Turn the ignition switch OFF.
2.
Disconnect the low tire pressure warning control unit harness connector.
3.
Check the voltage between the harness connectors of the low tire pressure warning control unit and the
ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>>
If the results of any of the following check items are not normal, repair or replace the malfunc-
tioning part.
• 10 A fuse [No. 3 in fuse block (J/B)]
• Harness open circuit or short circuit between the ignition switch and harness connector terminal
15 of the low tire pressure warning control unit.
• Check battery voltage.
2.
CHECK GROUND CIRCUIT
Check the continuity between the low tire pressure warning control unit harness connector and ground.
JSEIA0009ZZ
DTC
Display Item
Malfunction detected condition
Possible causes
C1754
CONT UNIT (EEPROM)
Tire Pressure Monitoring System (TPMS)
malfunction in the low tire pressure warn-
ing control unit
Low tire pressure warning
control unit malfunction
Low tire pressure warning control unit
—
Voltage
Connector
Terminal
M96
15
Ground
Battery voltage
C1754 LOW TIRE PRESSURE WARNING CONTROL UNIT
WT-33
< DTC/CIRCUIT DIAGNOSIS >
C
D
F
G
H
I
J
K
L
M
A
B
WT
N
O
P
Are the check results normal?
YES
>> GO TO 3.
NO
>> If an open circuit or other damage is detected, malfunctioning part.
3.
CHECK LOW TIRE PRESSURE WARNING CONTROL UNIT AND TIRE PRESSURE RECEIVER CIRCUIT
1.
Check the continuity between the low tire pressure warning control unit harness connector and tire pres-
sure receiver harness connector.
2.
Check the continuity between the low tire pressure warning control unit harness connector and ground.
Low tire pressure warning control unit
—
Continuity
Connector
Terminal
M96
32
Ground
Existed
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M96
6
E53 (Front LH)
3
Existed
22
2
10
1
26
4
5
E19 (Front RH)
3
21
2
9
1
25
4
4
B43 (Rear LH)
3
20
2
8
1
24
4
3
B251 (Rear RH)
3
19
2
7
1
23
4
WT-34
< DTC/CIRCUIT DIAGNOSIS >
C1754 LOW TIRE PRESSURE WARNING CONTROL UNIT
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
PERFORM THE SELF-DIAGNOSIS
With CONSULT-III
1.
Perform transmitter ID registration for all wheels. Refer to
WT-7, "ID REGISTRATION PROCEDURE :
Transmitter ID Registration Procedure"
.
2.
Perform “AIR PRESSURE MONITOR” self-diagnosis.
Is DTC “C1754” detected?
YES
>> Replace the low tire pressure warning control unit.
NO
>> Check for looseness or damage at the harness connector pins of the low tire pressure warning
control unit. Repair or replace if necessary.
Special Repair Requirement
INFOID:0000000005549629
1.
CHECK TIRE PRESSURE
Check the tire pressure of all wheels. Refer to
Does the tire pressure match the specified value?
YES
>> GO TO 2.
NO
>> Check the road wheels and tires. Adjust the tire pressures to the specified values.
2.
REGISTER TRANSMITTER ID
Perform transmitter ID registration. Refer to
WT-7, "ID REGISTRATION PROCEDURE : Transmitter ID Regis-
.
>> END
Low tire pressure warning control unit
—
Continuity
Connector
Terminal
M96
6
Ground
Not existed
22
10
26
5
21
9
25
4
20
8
24
3
19
7
23
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст