WT-26
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Diagnosis Procedure with Warning Lamp Function (Without CONSULT-III)NES000A4
DESCRIPTION
During driving, the low tire pressure warning system receives the signal transmitted from the transmitter
installed in each wheel. The control unit (BCM) of this system has pressure judgement and trouble diagnosis
functions.
FUNCTION
When the low tire pressure warning system detects low inflation pressure or another unusual symptom, the
warning lamps in the combination meter comes on. To start the self-diagnostic results mode, ground terminal
of the tire pressure warning check connector. The malfunction location is indicated by the warning lamp flash-
ing. Refer to PG-41, "
HARNESS" .
MALFUNCTION CODE CHART
Code (warning lamp blinks) Diagnosis item Reference
15
Front-left tire pressure drops to 190 kPa (1.90 kg/cm
2 , 28 psi) or less.
— 16
Front-right tire pressure drops to 190 kPa (1.90 kg/cm
2 , 28 psi) or less.
17
Rear-right tire pressure drops to 190 kPa (1.90 kg/cm
2 , 28 psi) or less.
18
Rear-left tire pressure drops to 190 kPa (1.90 kg/cm
2 , 28 psi) or less.
21 Transmitter no data (front - left)
WT-30
22 Transmitter no data (front - right)
23 Transmitter no data (rear - right)
24 Transmitter no data (rear - left)
31 Transmitter checksum error (front - left)
WT-30
32 Transmitter checksum error (front - right)
33 Transmitter checksum error (rear - right)
34 Transmitter checksum error (rear - left)
35 Transmitter pressure data error (front - left)
WT-31
36 Transmitter pressure data error (front - right)
37 Transmitter pressure data error (rear - right)
38 Transmitter pressure data error (rear - left)
41 Transmitter function code error (front - left)
WT-30
42 Transmitter function code error (front - right)
43 Transmitter function code error (rear - right)
44 Transmitter function code error (rear - left)
45 Transmitter battery voltage low (front - left)
WT-30
46 Transmitter battery voltage low (front - right)
47 Transmitter battery voltage low (rear - right)
48 Transmitter battery voltage low (rear - left)
52 Vehicle speed signalWT-32
TROUBLE DIAGNOSIS
WT-27
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Revision: 2006 November2007 350Z
LOW TIRE PRESSURE WARNING LAMP SYMPTOM CHART
Diagnosis
ItemSymptom
(Ignition switch ON)Low tire pressure warning lamp Cause Action
Low tire pres-
sure warning
lampWarning light comes
on immediately and
turns off after 1 sec-
ond.All wheel transmit-
ters are “activated”
(working).None (system OK)
Warning light blinks
on for 2 seconds,
then turns off for 0.2
seconds-repeats.All wheel transmit-
ters are not acti-
vated.Activate all wheel transmit-
ters. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
Warning light blinks 1
time.Front LH wheel
transmitter is not
activated.Activate front LH wheel
transmitter. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
Warning light blinks 2
times.Front RH wheel
transmitter is not
activated.Activate front RH wheel
transmitter. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
Warning light blinks 3
times.Rear RH wheel
transmitter is not
activated.Activate rear RH wheel
transmitter. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
SEIA0592E
SEIA0593E
PEIA0073E
SEIA0595E
SEIA0596E
WT-28
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
NOTE:
If more than one wheel transmitter is NOT activated, the warning light blinking patterns for those wheels will combine. (Example: one
blink/OFF/three blinks = Rear LH and Rear RH transmitters are not activated.)Low tire pres-
sure warning
lampWarning light blinks 4
times.Rear LH wheel trans-
mitter is not acti-
vated.Activate rear LH wheel
transmitter. Refer to WT-22,
"Transmitter Wake Up Oper-
ation" .
Warning light comes
on and does not turn
off.Tire pressure is low.Check tire pressure with
CONSULT-III. Refer to WT-
24, "DATA MONITOR
MODE" .
The fuse for combi-
nation meter from
battery is pulled out.Check the fuse for combina-
tion meter from battery.
Install or replace (if needed).
BCM connector
pulled out.Check BCM connector. Re-
connect if needed.
Low tire pressure or
tire pressure moni-
toring system mal-
function.
Perform CONSULT-III
Self- Diagnosis. Refer to
WT-23, "
SELF-DIAG
RESULTS MODE" .
–Perform ID Registration if
needed. Refer to WT-21,
"ID Registration Proce-
dure" .
Turn signal
lampTurn signal lamp
does not flash 2
times or horn does
not sound after trans-
mitter activation.—1. Tool J-45295 (spe-
cial service tool)
battery low.
2. Ignition OFF dur-
ing activation.
3. Tool J-45295 (spe-
cial service tool)
not positioned cor-
rectly.
4. Transmitters
already activated.1. Install new battery.
2. Make sure ignition is ON
during activation.
3. Position tool correctly dur-
ing activation.
4. None Diagnosis
ItemSymptom
(Ignition switch ON)Low tire pressure warning lamp Cause Action
SEIA0597E
SEIA0598E
TROUBLE DIAGNOSIS
WT-29
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Revision: 2006 November2007 350Z
Preliminary CheckNES0001K
BASIC INSPECTION
1. CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-39, "SERVICE DATA AND SPECIFICATIONS (SDS)" .
OK or NG
OK >> GO TO 2.
NG >> Adjust tire pressure to specified value.
2. CHECK LOW TIRE PRESSURE WARNING LAMP ACTIVATION
Check low tire pressure warning lamp activation.
Dose low tire pressure warning lamp activate for 1 second when ignition switch is turned
“ON”?
YES >> GO TO 3.
NO >> Check fuse and combination meter.
3. CHECK CONNECTOR
1. Disconnect BCM harness connectors M90 and M91.
2. Check terminals for damage or loose connection.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK ACTIVATION TOOL
Check activation tool battery.
OK or NG
OK >> Perform self-diagnosis.
NG >> Replace activation tool battery.
WT-30
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 November2007 350Z
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Transmitter or Control Unit (BCM)NES0001M
MALFUNCTION CODE NO. 21, 22, 23 OR 24
1. CHECK CONTROL UNIT
Drive for several minutes. Check all tire pressures with CONSULT-III “DATA MONITOR”.
Are all tire pressures displayed 0 kPa?
YES >> GO TO 2.
NO >> GO TO 3.
2. CHECK REMOTE KEYLESS ENTRY RECEIVER CONNECTOR
1. Disconnect remote keyless entry receiver harness connector M78.
2. Check terminals for damage or loose connection.
3. Reconnect harness connector.
OK or NG
OK >> Replace BCM refer to BCS-17, "Removal and Installation of BCM" , then GO TO 3.
NG >> Repair or replace remote keyless entry receiver harness connector.
3. ID REGISTRATION
Perform ID registration of all transmitters.
Is there any tire that ID cannot be registered to?
YES >> Replace transmitter of the tire, then GO TO 5.
NO >> GO TO 4.
4. VEHICLE DRIVING
Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
Check all tire pressures with CONSULT-III “DATA MONITOR” within 15 minutes after vehicle speed
becomes 17 km/h (11 MPH).
Does
“DATA MONITOR” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> GO TO 5.
5. ID REGISTRATION AND VEHICLE DRIVING
1. Perform 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. Then check all tire pressures with CONSULT-III “DATA MONITOR” within 5 minutes.
Does
“DATA MONITOR” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> GO TO the inspection applicable to DTC.
Transmitter - 1NES0001N
MALFUNCTION CODE NO. 31, 32, 33, 34, 41, 42, 43, 44, 45, 46, 47 OR 48
1. ID REGISTRATION (CORRECTION OF TRANSMITTER LOCATION)
1. Perform 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.
>> GO TO 2.
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
WT-31
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Revision: 2006 November2007 350Z
2. REPLACE TRANSMITTER
1. Check low tire pressure warning condition again, and replace malfunctioning transmitter.
2. Perform ID registration of all transmitters.
Can ID registration of all transmitters be completed?
YES >> GO TO 3.
NO >> GO TO the inspection 1. Refer to WT-30, "
Transmitter or Control Unit (BCM)" .
3. VEHICLE DRIVING
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. Then check all tire pressures with CONSULT-III “DATA MONITOR” within 5 minutes.
Does
“DATA MONITOR” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> Replace malfunctioning transmitter, and perform “Step 3” again.
Transmitter - 2NES0001O
MALFUNCTION CODE NO. 35, 36, 37 OR 38
1. CHECK ALL TIRE PRESSURE
Check all tire pressures. Refer to WT-39, "SERVICE DATA AND SPECIFICATIONS (SDS)" .
Are there any tires whose pressure is
“64 psi” or more?
YES >> Adjust tire pressure to specified value.
NO >> GO TO 2.
2. VEHICLE DRIVING
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
Check all tire pressures with CONSULT-III “DATA MONITOR” within 15 minutes after vehicle speed
becomes 17 km/h (11 MPH).
>> Replace transmitter with new one if “DATA MONITOR” displays 64 psi or more. Then GO TO 3.
3. ID REGISTRATION AND VEHICLE DRIVING
1. Perform 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. Then check all tire pressures with CONSULT-III “DATA MONITOR” within 5 minutes.
Does
“DATA MONITOR” display tire pressure as normal without any warning lamp?
YES >> INSPECTION END
NO >> GO TO the inspection applicable to DTC.
TROUBLE DIAGNOSIS FOR SYMPTOMS
WT-33
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Revision: 2006 November2007 350Z
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Warning Lamp Does Not Come On When Ignition Switch Is Turned OnNES0001Q
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
1. Perform “CONSULT-III Start Procedure”.
2. Touch “BCM” on “SELECT SYSTEM” screen.
3. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
4. Check display contents in self-diagnostic results.
Is the
“CAN COMM CIRCUIT” displayed in the self-diagnosis display items?
YES >> Perform trouble diagnosis for CAN communication system.
NO >> GO TO 2.
2. CHECK COMBINATION METER
Check combination meter function.
OK or NG
OK >> GO TO 3.
NG >> Check combination meter. Refer to DI-47, "
SELF-DIAGNOSTIC RESULTS" .
3. CHECK LOW TIRE PRESSURE WARNING LAMP
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors M90 and M91.
Does the warning lamp activate?
YES >> Replace BCM. Refer to BCS-17, "Removal and Installation of BCM" .
NO >> Check combination meter and repair or replace.
Warning Lamp Stays On When Ignition Switch Is Turned OnNES0001R
DIAGNOSTIC PROCEDURE
1. PERFORM SELF-DIAGNOSIS
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “AIR PRESSURE MONITOR” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch OFF.
5. Start engine.
Does low tire pressure warning lamp turn OFF?
YES >> INSPECTION END
NO >> GO TO 2.
2. PERFORM ID REGISTRATION
Perform ID registration all transmitters. Refer to WT-21, "
ID Registration Procedure" .
Does low tire pressure warning lamp turn OFF?
YES >> INSPECTION END
NO >> GO TO 3.
TROUBLE DIAGNOSIS FOR SYMPTOMS
WT-35
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Revision: 2006 November2007 350Z
6. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM harness connector.
3. Check continuity between BCM harness connector M91 terminal
52 and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installa-
tion of BCM" .
NG >> Repair or replace BCM ground circuit.
Warning Lamp Blinks When Ignition Switch Is Turned OnNES0001S
NOTE:
If warning lamp blinks below, the system is normal.
Blink Mode A
This mode shows transmitter status is OFF-mode.
Perform transmitter wake up operation. Refer to WT-22, "
Trans-
mitter Wake Up Operation" .
DIAGNOSTIC PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect BCM harness connector M90.
3. Check terminals for damage or loose connections.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.Continuity should exist.
SEIA0437E
SEIA0347E