2007 INFINITI M35 horn

RADIATOR
CO-45
[VK45DE]
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Revision: 2007 April2007 M35/M45
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter (commercial service tool) and radiator
cap tester (commercial service tool). Refer to CO-40, "
LEAK CHECK" .

Start and warm up engine. Visually Check if there is no leaks of engine coolant and A/T fluid.
Checking Radiator CapNBS004RI

Check valve seat of radiator cap.
–Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
–Check if valve seat has no soil and damage.

Pull negative-pressure valve to open it, and make sure that it
close completely when released.
–Make sure that there is no dirt or damage on the valve seat of
radiator cap negative-pressure valve.
–Make sure that there are no unusualness in the opening and
closing conditions of negative-pressure valve.

Check radiator cap relief pressure.
–When connecting radiator cap to the radiator cap tester adapter
(commercial service tool) (B) and the radiator cap tester (com-
mercial service tool) (A), apply engine coolant to the cap seal
surface.

Replace radiator cap if there is an unusualness.
CAUTION:
When installing a radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorNBS004RJ
Check radiator for mud or clogging. If necessary, clean radiator as follows:

Be careful not to bend or damage the radiator fins.

When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
shroud and horns. Then tape the harness and electrical connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward.
PBIC2816E
SMA967B
Standard : 78 - 98 kPa (0.8 - 1.0 kg/cm2 , 11 - 14 psi)
Limit : 59 kPa (0.6 kg/cm
2 , 9 psi)
PBIC5122J

IDX-5
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IDX
ALPHABETICAL INDEX
EC-890
Heated seat ..................................................... SE-144
Heater and cooling unit (Heater core) ........... ATC-134
HFC134a (R134a) system precaution ............... ATC-6
HFC134a (R134a) system service procedure ATC-150
HFC134a (R134a) system service tools .......... ATC-17
HFC134a system service equipment precaution ..........
ATC-13
High and low reverse clutch solenoid valve .... AT-159,
AT-161
Hood ................................................................... BL-15
Horn ................................................................. WW-54
HORN - Wiring diagram ................................... WW-54
How to erase DTC for OBD system ..... EC-68, EC-770
HSEAT - Wiring diagram ................................. SE-147
I
IATS - Wiring diagram ....................... EC-211
, EC-923
ICC - Wiring diagram ....................................... ACS-23
ICC/BS - Wiring diagram ................. EC-569, EC-1282
ICC/SW - Wiring diagram ................ EC-554, EC-1267
ICCBOF - Wiring diagram ................ EC-684, EC-1404
Idle air volume learning ....................... EC-86, EC-788
Idle speed .............................. EC-78, EC-780, EC-785
Idle speed control (ISC) .... EC-470, EC-472, EC-1177,
EC-1179
Ignition coil ....................................... EC-691, EC-1411
Ignition coil(VK45DE) ...................................... EM-190
Ignition coil(VQ35DE) ........................................ EM-44
Ignition control system ..................... EC-691, EC-1411
Ignition timing ........................ EC-78, EC-780, EC-785
IGNSYS - Wiring diagram ................ EC-692, EC-1412
Illumination ....................................................... LT-293
Illumination control ................. LT-289, LT-290, LT-291
In vehicle sensor ........................... ATC-115, ATC-126
INJECT - Wiring diagram ................. EC-670, EC-1390
Injector ............................................................. EC-669
Input clutch solenoid valve ................. AT-147, AT-149
Instrument panel .................................................. IP-10
Intake air temperature sensor ........... EC-209, EC-229,
EC-922
, EC-942
Intake door control linkage adjustment ............ ATC-87
Intake door motor ........................... ATC-85, ATC-132
Intake manifold collector(VQ35DE) ................... EM-21
Intake manifold(VK45DE) ................................ EM-179
Intake manifold(VQ35DE) .................................. EM-26
Intake sensor ................................ ATC-121, ATC-128
Intake valve timing control (Bank 1) .. EC-166, EC-870
Intake valve timing control (Bank 2) .. EC-166, EC-870
Intake valve timing control position sensor (Bank 1) ....
EC-1203
Intake valve timing control position sensor (Bank 2) ....
EC-1203
Intake valve timing control solenoid valve (Bank 1) ......
EC-185
, EC-899
Intake valve timing control solenoid valve (Bank 2) ......
EC-185
, EC-899
Integrated homelink transmitter ........................ BL-278
Intelligent cruise control (ICC) system .............. ACS-6
Interior ................................................................. EI-37
Interior lamp ...................................................... LT-266
IPDM (Intelligent power distribution module engine
room) ................................................................. PG-18
IVCB1 - Wiring diagram ..................... EC-186, EC-900
IVCB2 - Wiring diagram ..................... EC-188, EC-902
IVCSB1 - Wiring diagram ............................... EC-1204
IVCSB2 - Wiring diagram ............................... EC-1206
IVTB1 - Wiring diagram ................................... EC-873
IVTB2 - Wiring diagram ................................... EC-875
K
Knock sensor (KS) ........................... EC-359
, EC-1070
KS - Wiring diagram ......................... EC-360, EC-1071
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LAN system circuit ........................................... ATC-71
Lane Departure Warning System ....................... DI-75
Laser beam aiming adjustment ....................... ACS-15
Latch (lower anchors and tether for children) system ...
SB-35
LDW .................................................................... DI-75
LDW - Wiring Diagram ........................................ DI-86
License lamp ..................................................... LT-248
Line pressure solenoid valve ........................... AT-130
Line pressure test (A/T) ..................................... AT-55
Liquid gasket application .................................... EM-8
Liquid gasket application(VQ35DE) LU-3, LU-23, CO-3
Location of electrical units ................................. PG-98
Low coast brake solenoid valve ......... AT-163, AT-165
Lubricant (R134a) A/C ..................................... ATC-26
Lubrication circuit (engine)(VK45DE) ................ LU-25
Lubrication circuit (engine)(VQ35DE) .................. LU-5
Lubrication oil A/C .......................................... ATC-173
M
MAFS - Wiring diagram ..... EC-196
, EC-204, EC-909,
EC-917
Magnet clutch .................................................. ATC-93
MAIN - Wiring diagram ........ EC-154, EC-858, AT-180
Maintenance (engine)(VQ35DE) ...................... MA-14
Major overhaul (Final drive) .............. FFD-15, RFD-18
Major overhaul (Transfer) .................................. TF-45
Malfunction indicator lamp (MIL) .......... EC-70, EC-772
Manual mode switch ........................................ AT-167
Mass air flow sensor (MAFS) ............ EC-193, EC-202,
EC-906
, EC-915
Meter ..................................................................... DI-5
METER - Wiring diagram .................................... DI-13
MIL data link connectors circuit ....... EC-714, EC-1438
MIL/DL - Wiring diagram .................. EC-714, EC-1438
MIRROR - Wiring diagram ................................ GW-97
Mirror, door ..................................................... GW-118
Mirror, out side ................................................ GW-118
Misfire .............................................. EC-349, EC-1061

TROUBLE DIAGNOSIS
LAN-53
[CAN]
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LAN
Revision: 2007 April2007 M35/M45
Ignition switch ON signal T R R
Ignition switch signal T R R
Key ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signalTR
RT
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R R R
Theft warning horn request signal T R
Trunk switch signal T R R
Turn indicator signal T R R
A/T CHECK indicator lamp signal T R
A/T position indicator signal R T R R R
A/T self-diagnosis signal R T
Current gear position signal T R R
Manual mode indicator signal T R R
N range signal T R R
Output shaft revolution signal R R T R
P range signal T R R R R
R range signal T R R R
Turbine revolution signal R T R
A/C switch/indicator signalTR
RT
System setting signalTR R
RT T
Door lock/unlock trunk open request signal R T
Hazard and horn request signal R T
Key warning signal T R
Meter display signalTR
RT
Panic alarm request signal R T
Power window open request signal R T
A/C evaporator temperature signal R T
Distance to empty signal R T
Fuel level low warning signal R T
Fuel level sensor signal R T
Manual mode shift down signal R T
Manual mode shift up signal R T
Manual mode signal R T
Not manual mode signal R T
Parking brake switch signal R TSignals
ECM
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
RAS
*3
PSB
ADP
ABS
ICC
*4
IPDM-E

LAN-56
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Ignition switch ON signal T R R
Ignition switch signal T R R
Key ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signalTR
RT
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R R R
Theft warning horn request signal T R
Trunk switch signal T R R
Turn indicator signal T R R
A/T CHECK indicator lamp signal T R
A/T position indicator signal R T R R R
A/T self-diagnosis signal R T
Current gear position signal T R R
Manual mode indicator signal T R R
N range signal T R R
Output shaft revolution signal R R T R
P range signal T R R R R
R range signal T R R R
Turbine revolution signal R T R
A/C switch/indicator signalTR
RT
System setting signalTR R
RT T
Door lock/unlock trunk open request signal R T
Hazard and horn request signal R T
Key warning signalTR
Meter display signalTR
RT
Panic alarm request signal R T
Power window open request signal R T
A/C evaporator temperature signal R T
Distance to empty signal R T
Fuel level low warning signal R T
Fuel level sensor signal R T
Manual mode shift down signal R T
Manual mode shift up signal R T
Manual mode signal R T
Not manual mode signal R T
Parking brake switch signal R R TSignals
ECM
4WD
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
PSB
ADP
ABS
ICC
*3
IPDM-E

PG-18
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2007 April2007 M35/M45
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionNKS004E2

IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It controls integrated relay via IPDM E/R control cir-
cuit.

IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control and
oil pressure switch signal reception, etc.

It controls operation of each electrical part via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R-integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control
Using CAN communication, it receives signal from BCM and controls the following lamps:

Headlamps (HI, LO)

Tail, parking and license plate lamps

Front fog lamps
2. Daytime light relay control (for Canada models)
Using CAN communication, it receives signals from BCM and controls the daytime light relay.
3. Wiper control
Using CAN communication, it receives signals from BCM and controls the front wipers.
4. Rear window defogger relay control
Using CAN communication, it receives signals from BCM and controls the rear window defogger relay.
5. A/C compressor control
Using CAN communication, it receives signals from ECM and controls the A/C relay.
6. Cooling fan control
Using CAN communication, it receives signals from ECM and controls cooling fan via cooling fan control
module.
7. Horn control
Using CAN communication, it receives signals from BCM and controls horn relay.
8. Starter motor relay control
Using CAN communication, it receives signals from BCM and controls starter motor relay.
9. Alternator control
Using CAN communication, it receives signal from ECM and controls power generation voltage.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L-line, CAN
H-line), it is possible to transmit maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
1. Fail-safe control

When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication recovers normally, it also returns to normal control.

Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Controlled system Fail-safe mode
Headlamps

With the ignition switch ON, the headlamp low relay is ON.

With the ignition switch OFF, the headlamp low relay is OFF.
Tail, parking and
license plate lamps

With the ignition switch ON, the tail lamp relay is ON.

With the ignition switch OFF, the tail lamp relay is OFF.
Cooling fan

With the ignition switch ON, the cooling fan HI operates.

With the ignition switch OFF, the cooling fan stops.
Front wiperUntil the ignition switch is turned off, the front wiper LO and HI remains in the same status it was in just
before fail−safe control was initiated.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-21
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Revision: 2007 April2007 M35/M45
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT MONITOR ITEM ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR”
screen.
3. Touch the required monitoring item on “SELECTION FROM MENU”. In “ALL SIGNALS”, all items are
monitored. In “MAIN SIGNALS”, predetermined items are monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
All Signals, Main Signals, Selection From Menu
NOTE:

Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be cor-
rect.

*1: Only the vehicle with day time light system operates. ALL SIGNALS All items will be monitored.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Select any item for monitoring.
Item nameCONSULT-II
screen displayDisplay or unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM
MENU
Motor fan request MOTOR FAN REQ 1/2/3/4×× ×Signal status input from ECM
A/C Compressor
requestAC COMP REQ ON/OFF×× ×Signal status input from ECM
Tail & clearance
requestTAIL&CLR REQ ON/OFF×× ×Signal status input from BCM
Headlamp LO
requestHL LO REQ ON/OFF×× ×Signal status input from BCM
Headlamp HI
requestHL HI REQ ON/OFF×× ×Signal status input from BCM
Front fog lamp
request FR FOG REQ ON/OFF×× ×Signal status input from BCM
Front wiper request FR WIP REQSTOP/1LOW/
LOW/HI×× ×Signal status input from BCM
Wiper auto stop WIP AUTO STOP ACT P/STOP P×× ×Output status of IPDM E/R
Wiper protection WIP PROT OFF/BLOCK×× ×Control status of IPDM E/R
Starter request ST RLY REQ ON/OFF××Signal status input from BCM
Ignition relay status IGN RLY ON/OFF×× ×Ignition relay status monitored
with IPDM E/R
Rear window defog-
ger requestRR DEF REQ ON/OFF×× ×Signal status input from BCM
Oil pressure switch OIL P SW OPEN/CLOSE××Signal status input in IPDM E/R
Daytime running
light requestDTRL REQ
*1ON/OFF××Signal status input from BCM
Hood switch HOOD SW ON/OFF××Signal status input in IPDM E/R
Theft warning horn
requestTHFT HRN REQ ON/OFF××Signal status input from BCM
Horn chirp HORN CHIRP ON/OFF××Output status of IPDM E/R

PG-22
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2007 April2007 M35/M45
CAN DIAG SUPPORT MNTR
Refer to LAN-44, "CAN Diagnostic Support Monitor" in LAN section.
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch item to be tested.
3. Touch “START”, and confirm its operation.
4. Touch “STOP” while testing to stop the operation.
Test item CONSULT-II screen display Description
Tail lamp operation TAIL LAMP With a certain ON-OFF operation, the tail lamp relay can be operated.
Rear window defogger oper-
ationREAR DEFOGGERWith a certain ON-OFF operation, the rear window defogger relay can
be operated.
Front wiper (HI, LO) opera-
tionFRONT WIPERWith a certain operation (OFF, HI ON, LO ON), the front wiper relay
(Lo, Hi) can be operated.
Cooling fan operation MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
Lamp (HI, LO, FOG) opera-
tionLAMPSWith a certain operation (OFF, HI ON, LO ON, FOG ON), the lamp
relay (Lo, Hi, Fog) can be operated.
Horn operation HORN Push “ON” button, horn relay operates 20ms.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-23
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Revision: 2007 April2007 M35/M45
Auto Active TestNKS004E7
DESCRIPTION
In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the
following systems:

Rear window defogger

Front wiper (LO, HI)

Tail lamps, parking lamps and license plate lamps

Front fog lamps

Headlamps (LO, HI)

A/C compressor (magnetic clutch)

Cooling fan

Oil pressure warning lamp
OPERATION PROCEDURE
1. Close hood and front door (passenger side), and then lift wiper arms away from windshield (to prevent
glass damage by wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON, and within 20 seconds, press driver's door switch 10 times (close other doors).
Then turn ignition switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chirps once. Oil pressure warning lamp starts blinking.
6. After a series of operations is repeated three times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION:

Never start the engine.

If the engine starting operation is made, delete DTC on the self-diag results of CONSULT-II.
Refer to BL-79, "
CONSULT-II Application Items" .

Be sure to inspect GW-50, "Check door Switch" when the auto active test cannot be performed.