2007 INFINITI M35 ignition

TROUBLE DIAGNOSIS FOR SYMPTOMS
WT-37
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Revision: 2007 April2007 M35/M45
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-19, "
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.
SEIA0347E
Terminal
Continuity
(+) (–)
5 Ground No
SEIA0658E

WT-38
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2007 April2007 M35/M45
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 1 2 , "Sys-
tem Description" .
NG >> Repair or replace harness connector.
ID Registration Can Not Be CompletedNES000KL
1. ID REGISTRATION (ALL)
Perform ID registration of all transmitter.
Can ID registration of all transmitters be completed?
YES >> INSPECTION END
NO >> GO TO WT-29, "
Transmitter no Data" .
Terminal
Continuity
(+) (–)
5 Ground No
SEIA0658E

WW-4
FRONT WIPER AND WASHER SYSTEM
Revision: 2007 April2007 M35/M45
FRONT WIPER AND WASHER SYSTEMPFP:28810
Components Parts and Harness Connector LocationNKS003WB
System DescriptionNKS003WC

Front wiper relays (HIGH, LOW) are included in IPDM E/R (intelligent power distribution module engine
room).

Front wiper reverse relay is included in relay box-1. Refer to PG-98, "ELECTRICAL UNITS LOCATION" .

Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by BCM (body control module) when switch is turned ON.

BCM controls front wiper LO, HI, and INT (intermittent) operation.

IPDM E/R operates wiper motor according to CAN communication signals from BCM.

Front wiper motor switches LOW speed to/from HIGH speed by BCM function to change polarity.
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)
PKID0472E

FRONT WIPER AND WASHER SYSTEM
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Revision: 2007 April2007 M35/M45

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 front washer pump terminal 1

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: 2007 April2007 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.
WASHER OPERATION
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 pump terminal 2

through combination switch terminal 14

to combination switch terminal 12

through grounds M16 and M70.
With power and ground supplied, front washer pump is operated.
When BCM detects that front washer pump 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: 2007 April2007 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-25, "
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. 1.0 V
OFF Approx. 0 V
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. 1.0 V
OFF
(Wiper dial position 4)Approx. 0 V
PKIB4957J
PKIB4957J

WW-20
FRONT WIPER AND WASHER SYSTEM
Revision: 2007 April2007 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. 1.0 V
Any of several con-
ditions below

Wiper dial position 1

Wiper dial position 2
Approx. 1.7 V
Any of several con-
ditions below

Wiper dial position 6

Wiper dial position 7
Approx. 0.8 V
OFF
(Wiper dial position 4)Approx. 0 V
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. 1.0 V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5 V 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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Revision: 2007 April2007 M35/M45
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. 1.2 V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5 V
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. 1.2 V
OFF
(Wiper dial position 4)
Approx. 7.0 - 7.5 V
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. 1.2 V
OFF
Approx. 7.0 - 7.5 V Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J