NISSAN LATIO 2009 Service Repair Manual

OK >> GO TO 4.
NG >> Repair or replace damaged parts. OK >> Carry out self-diagnosis.
NG >> Replace battery in transmitter activation tool.
Self-Diagnosis (With CONSULT-III) INFOID:0000000004307329
DESCRIPTION
During driving, the tire pressure monitoring system receives the signal transmitted from the transmitter
installed in each wheel, and turns on the low tire pressure warning lamp when the tire pressure becomes low.
The control unit (BCM) for this system has pressure judgement and self-diagnosis functions.
FUNCTION
When the tire pressure monitoring syst em detects low inflation pressure or an internal malfunction, the low tire
pressure warning lamp in the combination meter comes on. The malfunction location is indicated by the low
tire pressure warning lamp flashing and the buzzer sounding.
CONSULT-III Application to Tire Pressure Monitoring System
× : Applicable
– : Not applicable
Self-Diagnostic Results Mode ITEM SELF-DIAGNOSTIC RESULTS DATA MONITOR
Front - Left transmitter × ×
Front - Right transmitter × ×
Rear - Left transmitter × ×
Rear - Right transmitter × ×
Warning lamp — ×
Vehicle speed × ×
Buzzer (in combination meter) — ×
CAN Communication × × 8, " System Description " .

WT
N
O P
NOTE:
Before performing the self-diagnosis, be sure to register the ID or else the actual malfunction location may be different from that dis-
played on CONSULT-III.
Data Monitor Mode
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.
Self-Diagnosis (Without CONSULT-III) INFOID:0000000004307330
SELF DIAGNOSTIC PROCE DURE (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 warni ng lamp flashes 5 times and continues repeating. Self-
diagnosis results are erased automatically by turning the ignition switch “OFF”.
[CODE- ERR] - FL [C1720]
[CODE- ERR] - FR [C1721]
[CODE- ERR] - RR [C1722]
[CODE- ERR] - RL [C1723] Function code data from FL transmitter is malfunctioning.
Function code data from FR transmitter is malfunctioning.
Function code data from RR transmitter is malfunctioning.
Function code data from RL transmitter is malfunctioning. WT-19[BATT - VOLT - LOW] - FL [C1724]
[BATT - VOLT - LOW] - FR [C1725]
[BATT - VOLT - LOW] - RR [C1726]
[BATT - VOLT - LOW] - RL [C1727] Battery voltage of FL transmitter drops.
Battery voltage of FR transmitter drops.
Battery voltage of RR transmitter drops.
Battery voltage of RL transmitter drops. WT-19VHCL_SPEED_SIG_ERR [C1729] Vehicle
speed signal is in error.WT-20IGN_CIRCUIT_OPEN [C1735] Vehicle
ignition signal is in error. WT-21Diagnostic item Diagnostic item is detected when ···
Reference
page MONITOR CONDITION SPECIFICATION
VHCL SPEED Drive vehicle. Vehicle speed (km/h or MPH)
AIR PRESS FL
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL • Drive vehicle for a few minutes.
Tire pressure (kPa or psi)
or
• Ignition switch ON and activation tool is transmitting activation signals.
ID REGST FL1
ID REGST FR1
ID REGST RR1
ID REGST RL1 Ignition switch ON Registration ID: DONE
No registration ID: YET
WARNING LAMP Low tire pressure
warning lamp on: ON
Low tire pressure warning lamp off: OFF
BUZZER Buzzer in combination meter on: ON
Buzzer in combination meter off: OFF

System
Description " .
—
21
22
23
24 Transmitter no data (FL)
Transmitter no data (FR)
Transmitter no data (RR)
Transmitter no data (RL) WT-1931
32
33
34 Transmitter chec
ksum error (FL)
Transmitter chec ksum error (FR)
Transmitter chec ksum error (RR)
Transmitter chec ksum error (RL) WT-1935
36
37
38 Transmitter pressure
data error (FL)
Transmitter pressure data error (FR)
Transmitter pressure data error (RR)
Transmitter pressure data error (RL) WT-2041
42
43
44 Transmitter function
code error (FL)
Transmitter function code error (FR)
Transmitter function code error (RR)
Transmitter function code error (RL) WT-1945
46
47
48 Transmitter battery voltage low (FL)
Transmitter battery voltage low (FR)
Transmitter battery voltage low (RR)
Transmitter battery voltage low (RL) WT-1952 Vehicle speed signal
WT-2054 Vehicle ignition signal
WT-21Low tire pressure warning lamp does
not come on when ignition switch is
turned on. • Fuse or combination meter
• BCM connector or circuit
• BCM WT-22Low tire pressure
warning lamp stays
on when ignition switch is turned on. • Combination meter
• BCM connector or circuit
• BCM WT-22Low tire pressure wa
rning lamp flashes
when ignition switch is turned on. • BCM harness connector or circuit
• BCM
• Transmitter's mode off
• ID registration not completed yet WT-23Hazard warning lamps flash when igni-
tion switch is turned on. • BCM harness connector or circuit
• BCM WT-24ID registration cannot be completed.
• Transmitter
• Remote keyless entry receiver harness connector or circuit
• Remote keyless entry receiver
• BCM harness connector or circuit
• BCM WT-24

WT
N
O P
TROUBLE DIAGNOSIS FOR
SELF-DIAGNOSTIC ITEMS
Data from Transmitter Not Being Received INFOID:0000000004307331
MALFUNCTION CODE NO. 21, 22 , 23 OR 24 (DTC C1708, C1709, C1710 OR C1711)YES >> GO TO 2.
NO >> GO TO 3. OK >> Replace BCM, then GO TO 3. Refer to
BCS-18, " Removal and Installation of BCM " .
NG >> Repair or replace remote keyless entry receiver connector. ID Registration Procedure " .
Is there a tire that cannot register ID? YES >> Replace transmitter of the
tire, then GO TO 5. Refer to WT-25, " Transmitter (Pressure Sensor) " .
NO >> GO TO 4. “ DATA MONITOR ITEM ” display tire pressure as normal without any warning lamp?
YES >> Inspection End.
NO >> GO TO 5. ID Registration Procedure " .
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 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 >> GO TO the inspection applicable to DTC.
Transmitter Malfunction INFOID:0000000004307332
MALFUNCTION CODE NO. 31, 32, 33 , 34, 41, 42, 43, 44, 45, 46, 47 OR 48 (DTC C1712, C1713,
C1714, C1715, C1720, C1721, C1722, C1723, C1724, C1725, C1726 OR C1727) ID Registration Procedure " .
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes.
>> GO TO 2. 25, " Transmitter (Pressure Sensor) " .
2. Carry out ID registration of all transmitters. Refer to WT-12, " ID Registration Procedure " .

YES >> GO TO 3.
NO >> GO TO WT-19, " Data from Transmitter Not Being Received " .
“ DATA MONITOR ITEM ” display tire pressure as normal without any warning lamp?
YES >> Inspection End.
NO >> Replace malfunctioning transmitter, and perform Step 3 again. Refer to WT-25, " Transmitter
(Pressure Sensor) " .
Transmitter Pressure Malfunction INFOID:0000000004307333
MALFUNCTION CODE NO. 35, 36, 37 OR 38 (DTC C1716, C1717, C1718 OR C1719) Tire " .
Are there any tires with pressure of 64 psi or more? YES >> Adjust tire pressure to specified value.
NO >> GO TO 2. ID Registration Procedure " .
2. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
3. Check all tire pressures with CONSULT-III within 15 minutes after vehicle speed becomes 17 km/h (11
MPH).
Does “ DATA MONITOR ITEM ” display 64 psi or more?
YES >> Replace transmitter. Refer to
WT-25, " Transmitter (Pressure Sensor) " . GO TO 3.
NO >> GO TO 3. ID Registration Procedure " .
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 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 >> GO TO the inspection applicable to DTC.
Vehicle Speed Signal INFOID:0000000004307334
MALFUNCTION CODE NO. 52 (DTC C1729) YES >> Malfunction in CAN communication system. GO TO
LAN-14, " CAN Diagnosis with CONSULT-III " .
NO >> GO TO 2. CONSULT-III Function (BCM) " .
Inspection results OK? OK >> Perform Vehicle Speed Sensor Inspection. Refer to
EC-1388, " Diagnosis Procedure " .
NG >> Replace BCM. Refer to BCS-18, " Removal and Installation of BCM " .

WT
N
O P
Vehicle Ignition Signal
INFOID:0000000004307335
MALFUNCTION CODE NO. 54 (DTC C1735) Terminal and Reference Value for BCM " .
Are the inspection results normal with the ignition switch ON? YES >> GO TO 2.
NO >> Check CAN system. Refer to LAN-17, " Trouble Diagnosis Flow Chart " .
BCM Power Supply and Ground Circuit Inspec-
tion " .
Is the power supply with the ignition switch ON normal? YES >> GO TO 3.
NO >> Repair power supply as necessary. YES >> Inspection End.
NO >> Replace BCM. Refer to BCS-18, " Removal and Installation of BCM " .

YES >> Malfunction in CAN communication system. GO TO
LAN-14, " CAN Diagnosis with CONSULT-
III " .
NO >> GO TO 2. Self-Diagnosis Mode of Combination Meter " .
Inspection results OK? OK >> GO TO 3.
NG >> Replace combination meter. Refer to IP-12, " Removal and Installation " .
YES >> Replace BCM. Refer to
BCS-18, " Removal and Installation of BCM " .
NO >> Check combination meter operation. Refer to DI-10, " Self-Diagnosis Mode of Combination
Meter " .
Low Tire Pressure Warning Lamp Stays On When Ignition Switch Is Turned On
INFOID:0000000004307337
DIAGNOSTIC PROCEDURE OK >> GO TO 2.
NG >> Repair or replace damaged parts. OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.

WT
N
O P
OK or NG OK >> GO TO 4.
NG >> Check BCM power supply circuit for open or short. OK >> Replace BCM. Refer to
BCS-18, " Removal and Installa-
tion of BCM " .
NG >> Repair BCM ground circuit.
Low Tire Pressure Warning Lamp Flas hes When Ignition Switch Is Turned On
INFOID:0000000004307338
NOTE:
If low tire pressure warning lamp fl ashes as shown, the system is normal.
Flash Mode A
• This mode shows transmitter status is OFF-mode. Carry out transmitter wake up operation. Refer to WT-13, " Trans-
mitter Wake Up Operation " .
DIAGNOSTIC PROCEDURE OK >> GO TO 2.
NG >> Repair or replace damaged parts.

OK >> Replace BCM. Refer to
BCS-18, " Removal and Installa-
tion of BCM " .
NG >> Repair or replace harness connector.
Hazard Warning Lamps Flash When Ignition Switch Is Turned On INFOID:0000000004307339
DIAGNOSTIC PROCEDURE OK >> Replace BCM. Refer to
BCS-18, " Removal and Installa-
tion of BCM " .
NG >> Repair BCM ground circuit.
ID Registration Ca nnot Be Completed INFOID:0000000004307340
DIAGNOSTIC PROCEDURE ID Registration Procedure " .
Can ID registration of all transmitters be completed? YES >> Inspection End.
NO >> GO TO WT-19, " Data from Transmitter Not Being Received " .
Continuity should exist.

WT
N
O P
REMOVAL AND INSTALLATION
Transmitter (Pressure Sensor) INFOID:0000000004307341
REMOVAL 1. Remove wheel and tire using power tool.
2. Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.
3. Gently bounce tire so that transmitter falls to bottom of tire. Place wheel and tire assembly on tire changing machine and
break both tire beads. Ensure that the transmitter remains at the
bottom of the tire while breaking the bead.
4. Turn tire so that valve hole is at bottom, and gently bounce the tire to ensure transmitter is near valve hole. Carefully lift tire onto
turntable and position valve hole (and transmitter) 270 degrees
from mounting/dismounting head.
5. Lubricate tire well, and remove top side of tire. Reach inside the tire and remove the transmitter.
6. Remove the second side of the tire as normal.
INSTALLATION 1. Place first side of tire onto rim.
2. Apply suitable silicone lubricant to new transmitter seal then install seal on transmitter. Refer to MA-14 .
NOTE:
Always replace the seal after every disassembly.