Infiniti M35/M45 Y50. Manual — part 1144
TROUBLE DIAGNOSES
WT-23
C
D
F
G
H
I
J
K
L
M
A
B
WT
LOW TIRE PRESSURE WARNING LAMP DIAGNOSTIC CHART
Diagnosis
Item
Symptom
(Ignition switch ON)
Low tire pressure warning lamp
Cause
Action
Low tire pres-
sure warning
lamp
Warning 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 tire pres-
sure transmitters. Refer to
.
Warning light blinks
1 time.
Tire pressure trans-
mitter front LH is not
activated.
Activate tire pressure trans-
mitter front LH. Refer to
.
Warning light blinks
2 times.
Tire pressure trans-
mitter front RH is not
activated.
Activate tire pressure trans-
mitter front RH. Refer to
.
Warning light blinks
3 times.
Tire pressure trans-
mitter rear RH is not
activated.
Activate tire pressure trans-
mitter rear RH. Refer to
.
SEIA0592E
SEIA0593E
SEIA0594E
SEIA0595E
SEIA0596E
WT-24
TROUBLE DIAGNOSES
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
lamp
Warning light blinks
4 times.
Tire pressure trans-
mitter rear LH is not
activated.
Activate tire pressure trans-
mitter rear LH. Refer to
.
Warning light comes
on and does not turn
off.
Tire pressure is low.
Check tire pressure with
CONSULT-II. Refer to
Warning light blinks
on for 0.5 seconds
then turns off for 0.5
seconds-repeats for
1 minute, and then
stays on
The 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 out
Check 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
–
Perform ID Registration if
needed. Refer to
.
Turn signal
lamp
Turn 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
Item
Symptom
(Ignition switch ON)
Low tire pressure warning lamp
Cause
Action
SEIA0597E
SEIA0598E
SEIA0788E
TROUBLE DIAGNOSES
WT-25
C
D
F
G
H
I
J
K
L
M
A
B
WT
How to Perform Trouble Diagnosis for Quick and Accurate Repair
NES000K7
INTRODUCTION
●
Before troubleshooting, verify customer complaints.
●
If a vehicle malfunction is difficult to reproduce, harnesses, harness connectors or terminals may be mal-
functioning. Hold and shake these parts to make sure they are securely connected.
●
When using a circuit tester to measure voltage or resistance of each circuit, be careful not to damage or
deform connector terminals.
WORK FLOW
Preliminary check:
Self-diagnosis:
Trouble diagnosis for symptoms:
SEIA0100E
WT-26
TROUBLE DIAGNOSES
Preliminary Check
NES000K8
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
.
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.
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