2006 INFINITI M35 ignition

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: 2006 January2006 M35/M45
Inspection 3: Warning Lamp Blinks When Ignition Switch Is Turned OnNES000KJ
NOTE:
If warning lamp blinks below, the system is normal.
Blink Mode A
This mode shows transmitter status is in OFF-mode.
Perform transmitter wake up operation. Refer to WT-21, "
Trans-
mitter Wake Up Operation" .
1. CHECK CONNECTOR
1. Disconnect low tire pressure warning control unit harness connector M19.
2. Check terminals for damage or loose connections.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2. CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT
Check continuity between low tire pressure warning control unit har-
ness 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 harness connector.
Inspection 4: Turn Signal Lamp Blinks When Ignition Switch Is Turned OnNES000KK
1. CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT
Check continuity between low tire pressure warning control unit har-
ness connector M19 and ground.
OK or NG
OK >> Check turn signal lamp operation. Refer to LT- 2 11 , "Sys-
tem Description" .
NG >> Repair or replace harness connector.
SEIA0347E
Terminal
Continuity
(+) (–)
5 Ground No
SEIA0658E
Terminal
Continuity
(+) (–)
5Ground No
SEIA0658E

FRONT WIPER AND WASHER SYSTEM
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Revision: 2006 January2006 M35/M45
OUTLINE
Power is supplied at all times
to ignition relay, located in IPDM E/R, from battery directly,
through 50 A fusible link (letter F, located in fuse and fusible link block)
to BCM terminal 55,
through 10 A fuse [No. 21, located in fuse block (J/B)]
to BCM terminal 42,
through 30 A fuse (No. 73, located in IPDM E/R)
to front wiper low relay, located in IPDM E/R
to front wiper reverse relay terminal 5,
through 15 A fuse (No. 78, located in IPDM E/R)
to CPU (central processing unit) located in IPDM E/R,
through 15 A fuse (No. 71, located in IPDM E/R)
to CPU located in IPDM E/R.
With the ignition switch in the ON or START position, power is supplied
to ignition relay, located in IPDM E/R,
through 15 A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38,
through 10 A fuse [No. 12, located in fuse block (J/B)]
to front wiper reverse relay terminal 1,
through 10 A fuse (No. 84, located in IPDM E/R)
to combination switch terminal 11
to front wiper motor terminal 4.
Ground is supplied
to BCM terminal 52
through grounds M16 and M70,
to IPDM E/R terminals 38 and 51
through grounds E22 and E43,
to combination switch terminal 12
through grounds M16 and M70.
LOW SPEED WIPER OPERATION
When wiper switch is in the LO position, BCM detects low speed wiper ON signal by BCM wiper switch read-
ing function.
BCM sends front wiper request signal (LO) with CAN communication line
from BCM terminals 39 and 40
to IPDM E/R terminals 49 and 50.
When IPDM E/R receives front wiper request signal (LO), it turns ON front wiper low relay, located in IPDM
E/R, power is supplied
through IPDM E/R terminal 23 and front wiper high relay and front wiper low relay
to front wiper motor terminal 3.
Ground is supplied
to front wiper motor terminal 1
through front wiper reverse relay terminals 3 and 4
through grounds E22 and E43.
With power and ground supplied, the front wiper motor operates at low speed.

FRONT WIPER AND WASHER SYSTEM
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Revision: 2006 January2006 M35/M45
AUTO STOP OPERATION
With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When wiper arms are not located at base of windshield with wiper switch OFF, ground is provided
from IPDM E/R terminal 23
to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.
When wiper arms reach base of windshield, front wiper motor terminals 4 and 5 are connected
to IPDM E/R terminal 32
through front wiper motor terminals 4 and 5.
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When BCM receives auto stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN commu-
nication line.
IPDM E/R stops wiper motor. Wiper motor will then stop wiper arms at the STOP position.
WAS H ER O P E R ATI O N
When wiper switch is in front wiper washer position with ignition switch ON, BCM detects front wiper washer
signal by BCM wiper switch reading function (refer to BCS-3, "
COMBINATION SWITCH READING FUNC-
TION" ). Combination switch ground is supplied
to front washer motor terminal 2
through combination switch terminal 14
to combination switch terminal 12
through grounds M16 and M70.
And power is supplied
through combination switch terminal 13
to front washer motor terminal 1.
With power and ground supplied, front washer motor is operated.
When BCM detects that front washer motor has operated for 0.4 seconds or longer, BCM operates front wiper
motor for low speed.
When BCM detects washer switch is OFF, low speed operation cycles approximately 2 times and stops.
MIST OPERATION
When the wiper switch is turned to the MIST position, wiper low speed operation cycles once and then stops.
For additional information about wiper operation under this condition, refer to WW-5, "
LOW SPEED WIPER
OPERATION" .
If the switch is held in the MIST position, low speed operation continues.
FAIL-SAFE FUNCTION
If an abnormality occurs in CAN communications, IPDM E/R holds the condition just before fail-safe status is
initiated until ignition switch is turned OFF. (If wipers were operating in LO just before the initiation of fail-safe
status, they continue to operate in LOW until ignition switch is turned OFF.)

FRONT WIPER AND WASHER SYSTEM
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Revision: 2006 January2006 M35/M45
Terminals and Reference Values for BCMNKS003WH
CAUTION:
Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to WW-24, "
DATA MONITOR" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
4R/GCombination
switch input 3ONLighting, turn, wiper
OFF
(Wiper dial position 4)
Any of several con-
ditions below
Front wiper SW MIST
Front wiper SW INT
Front wiper SW LO
Approx. 1.0V
OFF Approx. 0V
5YCombination
switch input 2ONLighting, turn, wiper
OFF
Any of several con-
ditions below
Front washer switch
(Wiper dial position 4)
Wiper dial position 1
Wiper dial position 5
Wiper dial position 6
Approx. 1.0V
OFF
(Wiper dial position 4)Approx. 0V
PKIB4957J
PKIB4957J

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FRONT WIPER AND WASHER SYSTEM
Revision: 2006 January2006 M35/M45
6LG/BCombination
switch input 1ONLighting, turn, wiper
OFF
Any of several con-
ditions below
Front wiper switch HI
(Wiper dial position 4)
Wiper dial position 3
Approx. 1.0V
Any of several con-
ditions below
Wiper dial position 1
Wiper dial position 2
Approx. 1.7V
Any of several con-
ditions below
Wiper dial position 6
Wiper dial position 7
Approx. 0.8V
OFF
(Wiper dial position 4)Approx. 0V
32 LGCombination
switch output 5ONLighting, turn, wiper
OFF
Any of several con-
ditions below
Wiper dial position 1
Wiper dial position 2
Wiper dial position 6
Wiper dial position 7
Approx. 1.0V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5V Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4959J
PKIB4952J
PKIB4955J
PKIB4956J
PKIB4960J

FRONT WIPER AND WASHER SYSTEM
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33 GRCombination
switch output 4ONLighting, turn, wiper
OFF
(Wiper dial position 4)
Any of several con-
ditions below
Wiper dial position 1
Wiper dial position 5
Wiper dial position 6
Approx. 1.2V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5V
34 LCombination
switch output 3ONLighting, turn, wiper
OFF
Any of several con-
ditions below
Wiper dial position 1
Wiper dial position 2
Wiper dial position 3
Approx. 1.2V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5V
35 SBCombination
switch output 2ONLighting, turn, wiper
OFF
(Wiper dial position 4)
Any of several con-
ditions below
Front wiper switch INT
Front wiper switch HI
Approx. 1.2V
OFF
Approx. 7.0 - 7.5V Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J

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FRONT WIPER AND WASHER SYSTEM
Revision: 2006 January2006 M35/M45
36 VCombination
switch output 1ONLighting, turn, wiper
OFF
(Wiper dial position 4)
Any of several con-
ditions below
Front wiper switch
MIST
Front wiper switch LO
Front washer switch
Approx. 1.2V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5V
38 WIgnition switch
(ON) ON — Battery voltage
39 L CAN
H — — —
40 P CAN
L — — —
42 PBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0V
55 WBattery power
supplyOFF — Battery voltage Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4958J
PKIB4960J

FRONT WIPER AND WASHER SYSTEM
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Revision: 2006 January2006 M35/M45
Terminals and Reference Values for IPDM E/RNKS003WI
NOTE:
During LO operation, terminal No. 32 detects front wiper motor stopping or moving by front wiper auto stop signal.
During HI operation, terminal No. 32 detects front wiper motor stopping or moving by front wiper auto stop signal that is output from
terminal No. 44 (not from terminal No. 32).
How to Perform Trouble DiagnosesNKS003WJ
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-4, "
System Description" .
3. Perform the Preliminary Check. Refer to WW-22, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the front wiper and washer operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
19 O High speed signal ON — Battery voltage
23 V Low speed signal ON Wiper switchOFF Approx. 0V
LO Battery voltage
31 L/B High speed ground ON — Approx. 0V
32 L/Y
Wiper auto stop signal
NOTEONWiper operating Approx. 0V
Wiper stopped Battery voltage
35 R Front wiper reverse relay signal ON Wiper switchOFF Battery voltage
HI Approx. 0V
38 B Ground ON — Approx. 0V
44 G/LFront washer motor and front wiper
auto stop signal (HI) power supplyON — Battery voltage
49 L CAN
H — — —
50 P CAN
L — — —
51 B Ground ON — Approx. 0V