2007 INFINITI M35 ignition

WT-24
TROUBLE DIAGNOSES
Revision: 2007 April2007 M35/M45
NOTE:
If more than one wheel transmitter is NOT activated, the warning lamp blinking patterns for those wheels will combine. (Example: one
blink/OFF/three blinks = Tire pressure transmitter rear LH and rear RH are not activated.)Low tire pres-
sure warning
lampWarning light blinks
4 times.Tire pressure trans-
mitter rear LH is not
activated.Activate tire pressure trans-
mitter rear LH. Refer to WT-
19, "Transmitter Wake Up
Operation" .
Warning light comes
on and does not turn
off.Tire pressure is low.Check tire pressure with
CONSULT-II. Refer to WT-21,
"DATA MONITOR MODE" .
Warning light blinks
on for 0.5 seconds
then turns off for 0.5
seconds-repeats for
1 minute, and then
stays onThe fuse for low tire
pressure warning
control unit from bat-
tery is pulled out.Check the fuse for low tire
pressure warning control unit
from battery. Install or replace
(if needed).
Low tire pressure
warning control unit
connector pulled outCheck low tire pressure warn-
ing control unit connector. Re-
connect if needed.
Tire pressure moni-
toring system mal-
function.

Perform CONSULT-II Self-
Diagnosis. Refer to WT-20,
"SELF-DIAG RESULT
MODE" .
–Perform ID Registration if
needed. Refer to WT-18,
"ID Registration Procedure"
.
Turn signal
lampTurn signal lamp
does not flash 2
times after transmit-
ter activation.—1. Tool J-45295
[SST]
2. Ignition OFF dur-
ing activation.
3. Tool J-45295
[SST] not posi-
tioned correctly.
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
SEIA0788E

WT-26
TROUBLE DIAGNOSES
Revision: 2007 April2007 M35/M45
Preliminary CheckNES000K8
BASIC INSPECTION
1. CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-41, "
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
1. Check low tire pressure warning lamp activation.
2. Does low tire pressure warning lamp activate for 1 second when ignition switch is turned “ON”.
Does warning lamp activate?
YES >> GO TO 3.
NO >> Check fuse and combination meter. Refer to DI-5, "
COMBINATION METERS" .
3. CHECK CONNECTOR
1. Disconnect low tire pressure warning control unit harness connectors M19.
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-28
TROUBLE DIAGNOSES
Revision: 2007 April2007 M35/M45
DIAGNOSIS CHART BY SYMPTOM
Symptom Reference
Warning lamp does not come on when ignition switch is turned on.WT-35, "
Warning Lamp Does Not Come On When
Ignition Switch Is Turned ON"
Warning lamp stay on when ignition switch turned on.WT-35, "Warning Lamp Stay On When Ignition
Switch Is Turned ON"
Warning lamp blinks 1 min and then turns on when ignition switch is turned on.WT-36, "Warning Lamp Blinks 1 Minute and Then
Turns ON When Ignition Switch Is Turned ON"
Warning lamp blinks when ignition switch is turned on.WT-37, "Warning Lamp Blinks When Ignition Switch
Is Turned ON"
Turn signal lamp blinks when ignition switch is turned on.WT-38, "Turn Signal Lamp Blinks When Ignition
Switch Is Turned ON"
ID registration can not be operated.WT-38, "ID Registration Can Not Be Completed"

WT-30
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2007 April2007 M35/M45
Receiver Data ErrorNES000KB
MALFUNCTION CODE NO. 25, 26, 27, 28
1. CHECK LOW TIRE PRESSURE WARNING CONTROL UNIT AND RECEIVER CONNECTOR
1. Turn ignition switch OFF, disconnect low tire pressure warning control unit harness connector and receiver
harness connector, and check terminal for deformation, disconnection, looseness, and so on. If there is a
malfunction, repair or replace the terminal.
2. Reconnect harness connector securely, and perform self-diagnosis.
Does
“SELF-DIAG RESULTS” display as normal without any warning lamp?
YES >> Connector terminal connection is loose, damaged, open, or shorted.
NO >> GO TO 2.
2. CHECK TIRE PRESSURE RECEIVER POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF, and disconnect tire pressure receiver harness connector E74, E75, B115, B482.
2. Check continuity between tire pressure receiver harness con-
nector E74, E75, B115, B482 and ground.
3. Turn ignition switch ON, and then check voltage between tire
pressure receiver harness connector E74, E75, B115, B482 and
ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHANGE THE TIRE PRESSURE RECEIVER POSITION (EXAMPLE OF FRONT LH SIDE)
1. Replace right from left for front and rear receivers.
2. Perform self-diagnosis.
Is the initial indication of self-diagnosis displayed?
YES >> GO TO 4
NO >> Replace tire pressure receiver front RH when indicating RH tire pressure receiver malfunction.Terminal 4 – Ground : Continuity should exist.
SGIA1249E
1 – Ground : Battery voltage (Approx.12 V)
SGIA1250E

TROUBLE DIAGNOSIS FOR SYSTEM
WT-31
C
D
F
G
H
I
J
K
L
MA
B
WT
Revision: 2007 April2007 M35/M45
4. CHECK RECEIVER HARNESS (EXAMPLE OF FRONT LH SIDE)
1. Turn ignition switch OFF, disconnect low tire pressure warning
control unit harness connector M19 (A) and receiver harness
connector E74 (B).
2. Check continuity between low tire pressure warning control unit
harness connector M19 (A) and receiver harness connector E74
(B).
OK or NG
OK >> Replace low tire pressure warning control unit.
NG >> Harness between Low tire warning control unit and receiver open or shorted. Repair or replace
harness.
Transmitter Pressure Data ErrorNES000KC
MALFUNCTION CODE NO. 35, 36, 37, 38
1. CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-41, "
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-II “DATA MONITOR” within 15 minutes after vehicle speed
becomes 17 km/h (11 MPH).
>> Replace tire pressure transmitter with new one if “DATA MONITOR” display 64 psi or more. Then
GO TO 3.
3. ID REGISTRATION AND VEHICLE DRIVING
1. Perform ID registration of all tire pressure 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-II “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.Terminal 27 – 2 : Continuity should exist.
Terminal 11 – 3 : Continuity should exist.
SEIA0789E

WT-34
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2007 April2007 M35/M45
Control Unit (EEPROM) MalfunctionNES000KT
MALFUNCTION CODE NO. 54
1. CHECK SELF-DIAGNOSIS RESULTS
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULT” mode for “AIR PRESSURE MONITOR” with CONSULT-II.
3. Touch “ERASE”.
4. Turn ignition switch OFF, and wait at least 10 seconds.
5. Start engine.
6. Perform the self-diagnosis again.
Is the
“CONTROL UNIT (EEPROM) [C1754]” displayed?
YES >> Replace low tire pressure warning control unit. Refer to WT-40, "Low Tire Pressure Warning Con-
trol Unit" .
NO >>INSPECTION END
CAN Communication System MalfunctionNES000KS
1. CHECK LOW TIRE PRESSURE WARNING CONTROL UNIT CONNECTOR
1. Turn ignition switch OFF, disconnect low tire pressure warning control unit harness connector, and check
terminal for deformation, disconnection, looseness, etc.
2. Reconnect harness connector securely, and perform CONSULT-II self-diagnosis.
Is above displayed on self-diagnosis display?
YES >>
If “CAN COMM CIRCUIT [U1000]” is displayed, print out self-diagnosis. And then, go to LAN-
50, "CAN System Specification Chart" .

Replace low tire pressure warning control unit if “CONTROL UNIT [CAN] [U1010]” is displayed.
NO >> Connector terminal connection is loose, damaged, open, or shorted. Repair or replace the termi-
nal.
Self-diagnostic results
CAN COMM CIRCUIT [U1000]
CONTROL UNIT [CAN] [U1010]

TROUBLE DIAGNOSIS FOR SYMPTOMS
WT-35
C
D
F
G
H
I
J
K
L
MA
B
WT
Revision: 2007 April2007 M35/M45
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Warning Lamp Does Not Come On When Ignition Switch Is Turned ONNES000KH
1. CHECK SELF-DIAGNOSIS RESULTS
1. Perform “CONSULT-II Start Procedure”. Refer to GI-38, "
CONSULT-II Start Procedure" .
2. Touch “SELF-DIAG RESULTS”.
3. Check display contents in self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >>
If “CAN COMM CIRCUIT [U1000]” is displayed, print out self-diagnosis. And then, go to LAN-
50, "CAN System Specification Chart" .

Replace low tire pressure warning control unit if “CONTROL UNIT [CAN] [U1010]” is displayed.
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-18, "
Trouble Diagnosis" .
3. CHECK LOW TIRE PRESSURE WARNING LAMP
Disconnect low tire pressure warning control unit harness connector M19.
Does the warning lamp activate?
YES >> Replace low tire pressure warning control unit. Refer to WT-40, "Low Tire Pressure Warning Con-
trol Unit" .
NO >> Check combination meter and repair or replace.
Warning Lamp Stay On When Ignition Switch Is Turned ONNES000KW
1. CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-41, "
SERVICE DATA AND SPECIFICATIONS (SDS)" .
OK or NG
OK >> Check combination meter. Refer to DI-5, "COMBINATION METERS" .
NG >> Adjust tire pressure to specified value.
Self-diagnostic results
CAN COMM CIRCUIT [U1000]
CONTROL UNIT [CAN] [U1010]

WT-36
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2007 April2007 M35/M45
Warning Lamp Blinks 1 Minute and Then Turns ON When Ignition Switch Is
Tu r n e d O N
NES000KI
1. CHECK CONNECTOR
1. Disconnect low tire pressure warning control unit harness connectors M19.
2. Check terminals for damage or loose connections.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2. CHECK POWER SUPPLY CIRCUIT (IGN)
1. Turn ignition switch ON.
2. Measure voltage between low tire pressure warning control unit
harness connector M19 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check low tire pressure warning control unit power sup-
ply circuit for open or short.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between low tire pressure warning control unit
harness connector M19 and ground.
OK or NG
OK >> Replace low tire pressure warning control unit. Refer to
WT-40, "
Low Tire Pressure Warning Control Unit" .
NG >> Repair or replace low tire pressure warning control unit
ground circuit.
Terminal
Vo l ta g e
(+) (–)
2 Ground 12 V
SEIA0656E
Terminal
Continuity
(+) (–)
17 Ground Yes
SEIA0657E