2007 INFINITI M35 starter motor

EC-494
[VQ35DE]
DTC P0850 PNP SWITCH
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS0052S
1. CHECK DTC WITH TCM
Refer to AT- 4 0 , "
OBD-II Diagnostic Trouble Code (DTC)" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
Ye s o r N o
Yes >> GO TO 3.
No >> Refer to SC-8, "
STARTING SYSTEM" .
3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Disconnect “unified meter and A/C amp.” harness connector.
4. Check harness continuity between A/T assembly terminal 9 and “unified meter and A/C amp.” terminal 2.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M72, F102

Harness for open or short between A/T assembly and “unified meter and A/C amp.”
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
102 G PNP switch[Ignition switch: ON]

Selector lever: P or NApproximately 0V
[Ignition switch: ON]

Selector lever: Except aboveBATTERY VOLTAGE
(11 - 14V)
Continuity should exist.

EC-1082
[VK45DE]
DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
Revision: 2007 April2007 M35/M45
DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)PFP:23731
Component DescriptionNBS005GL
The camshaft position sensor (PHASE) senses the protrusion of
exhaust valve cam sprocket to identify a particular cylinder. The
camshaft position sensor (PHASE) senses the piston position.
When the crankshaft position sensor (POS) system becomes inoper-
ative, the camshaft position sensor (PHASE) provides various con-
trols of engine parts instead, utilizing timing of cylinder identification
signals.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor changes.
ECM receives the signals as shown in the figure.
On Board Diagnosis LogicNBS005GM
PBIB0562E
PBIB2448E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0340
0340Camshaft position sensor
(PHASE) circuit

The cylinder No. signal is not sent to ECM
for the first few seconds during engine
cranking.

The cylinder No. signal is not sent to ECM
during engine running.

The cylinder No. signal is not in the normal
pattern during engine running.

Harness or connectors
(The sensor circuit is open or shorted)

Camshaft position sensor (PHASE)

Camshaft sprocket (EXH)

Starter motor (Refer to SC-8 .)

Starting system circuit (Refer to SC-8 .)

Dead (Weak) battery

DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
EC-1085
[VK45DE]
C
D
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MA
EC
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic ProcedureNBS005GP
1. CHECK STARTING SYSTEM
Turn ignition switch to START position.
Ye s o r N o
Ye s > > G O T O 2 .
No >> Check starting system. (Refer toSC-8, "
STARTING SYSTEM" .)
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
14 GCamshaft position sensor
(PHASE)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle1.0 - 4.0V
[Engine is running]

Engine speed: 2,000 rpm1.0 - 4.0V
111 S BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]

For a few seconds after turning ignition
switch OFF0 - 1.5V
[Ignition switch: OFF]

More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
11 9
120R
RPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
PBIB1039E
PBIB1040E
Does the engine turn over?
Does the starter motor operate?

DTC P0850 PNP SWITCH
EC-1201
[VK45DE]
C
D
E
F
G
H
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MA
EC
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS005K8
1. CHECK DTC WITH TCM
Refer to AT- 4 0 , "
OBD-II Diagnostic Trouble Code (DTC)" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
Ye s o r N o
Ye s > > G O T O 3 .
No >> Refer to SC-8, "
STARTING SYSTEM" .
3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Disconnect “unified meter and A/C amp.” harness connector.
4. Check harness continuity between A/T assembly terminal 9 and “unified meter and A/C amp.” terminal 2.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M72, F102

Harness for open or short between A/T assembly and “unified meter and A/C amp.”
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
102 G PNP switch[Ignition switch: ON]

Selector lever: P or NApproximately 0V
[Ignition switch: ON]

Selector lever: Except aboveBATTERY VOLTAGE
(11 - 14V)
Continuity should exist.

IDX-7
A
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IDX
ALPHABETICAL INDEX
Refrigerant general precaution .......................... ATC-7
Refrigerant lines ............................................ ATC-150
Refrigerant pressure sensor ........... EC-704, EC-1424,
ATC-97
, ATC-166
Refrigeration cycle ........................................... ATC-20
Removal and installation (A/T) ........... AT-274, AT-278
Removal and installation (Transfer) .................... TF-44
Reverse interlock door mirror ........................... GW-94
Revolution sensor (A/T) ...................... AT-119, AT-263
Rocker cover(VK45DE) ................................... EM-199
Rocker cover(VQ35DE) ..................................... EM-53
Room lamp - See Interior lamp ......................... LT-266
ROOM/L - Wiring diagram ................................ LT-273
RP/SEN - Wiring diagram ................ EC-705, EC-1425
S
SAE J1979 - Service $01 - 09 ............. EC-54
, EC-756
SEAT - Wiring diagram ...................................... SE-99
Seat belt inspection ........................................... SB-32
Seat belt, front ................................................... SB-29
Seat belt, rear .................................................... SB-31
Seat, rear ......................................................... SE-173
Self-diagnosis (Transfer) .................................... TF-22
SEN/PW - Wiring diagram ............... EC-487, EC-1194
SHIFT - Wiring diagram ................................... AT-230
Shift lock system .............................................. AT-229
Shock absorber (rear) ..................................... RSU-10
Side air bag (satellite) sensor .......................... SRS-50
Side curtain air bag .......................................... SRS-47
Side trim .............................................................. EI-37
SMJ (super multiple junction) .......................... PG-109
Spark plug replacement ..................................... MA-27
Spark plug replacement(VQ35DE) .................... MA-20
Spark plug(VK45DE) ....................................... EM-191
Spark plug(VQ35DE) ......................................... EM-45
Specification value ............................. EC-143, EC-847
Speedometer ........................................................ DI-5
Spiral cable ...................................................... SRS-44
SROOF - Wiring diagram .................................. RF-13
SRS - See Supplemental Restraint System ...... SRS-5
SRS - Wiring diagram ...................................... SRS-13
SRS Trouble diagnoses ..................................... SRS-9
Stabilizer bar (rear) ......................................... RSU-17
Stall test (A/T) .................................................... AT-53
Standardized relay ........................................... PG-112
START - Wiring diagram ..................................... SC-9
Starter .................................................................. SC-8
Starting system .................................................... SC-8
Steering gear and linkage inspection ................ MA-36
Steering wheel and column ................... PS-10, PS-13
Steering wheel turning force .............................. PS-10
Stop lamp ......................................................... LT-242
Stop lamp switch ............................. EC-589, EC-1307
STSIG - Wiring diagram .................................. AT-109
Sun roof, electric ................................................ RF-10
Sunload sensor ............................. ATC-118, ATC-127
Sunroof .................................................. RF-24, RF-27
Sunshade ............................................................ EI-44
Supplemental Restraint System ....................... SRS-5
Supplemental restraint system - Wiring diagram ..........
SRS-13
Suspension ....................................................... MA-37
Symbols and abbreviations ...................... GI-11, GI-24
System readiness test (SRT) code ...... EC-60, EC-762
T
Tachometer ........................................................... DI-5
Tail lamp ........................................................... LT-248
TCM circuit diagram ........................................... AT-52
TCM inspection table ......................................... AT-89
Thermostat(VK45DE) ....................................... CO-55
Thermostat(VQ35DE) ....................................... CO-29
Three way catalyst function (Bank 1) EC-380, EC-1089
Three way catalyst function (Bank 2) EC-380, EC-1089
Three way catalyst precautions ............................ GI-5
Three way catalyst(VK45DE) .......................... EM-183
Throttle control motor ....................... EC-610, EC-1329
Throttle control motor relay .............. EC-598, EC-1316
Throttle position sensor (TPS) .......... EC-219, EC-342,
EC-518
, EC-520, EC-631, EC-932, EC-1054, EC-1233,
EC-1235
, EC-1350
Throttle valve closed position learning . EC-86, EC-788
Tie-rod ............................................................... PS-19
Timing chain(VK45DE) ................................... EM-203
Timing chain(VQ35DE) ..................................... EM-66
Tire rotation ....................................................... MA-35
TLID - Wiring diagram ...................................... BL-209
Top tether strap child restraint ........................... SB-36
Torque converter installation ............. AT-277, AT-280
Torque convertor clutch solenoid valve AT-126, AT-128
TPS1 - Wiring diagram .................... EC-344, EC-1056
TPS2 - Wiring diagram ...................... EC-221, EC-934
TPS3 - Wiring diagram .................... EC-633, EC-1352
Transfer control unit inspection table ................. TF-20
TRNSCV - Wiring diagram ............................... BL-278
Trouble diagnoses .............................................. GI-12
Trunk lid ........................................................... BL-201
Trunk lid opener - See Trunk lid ...................... BL-207
TURN - Wiring diagram .................................... LT-216
Turn signal lamp ............................................... LT-212
Two trip detection logic ........................ EC-54, EC-756
Tyre pressure monitoring system - trouble diagnoses ..
WT-12
U
Unified meter and A/C amp. ............................... DI-28
Upper link (front susp.) ..................... FSU-16, FSU-34
V
Vacuum hose (brake system) ............................ BR-20
Valve clearance(VK45DE) .............................. EM-224
Valve clearance(VQ35DE) ................................ EM-94
Valve guide ..................................................... EM-109
Valve guide(VK45DE) ..................................... EM-243

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
C
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PG
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

SC-8
STARTING SYSTEM
Revision: 2007 April2007 M35/M45
STARTING SYSTEMPFP:23300
System Description NKS005C2
Power is supplied at all times

through 15A fuse (No. 78, located in the IPDM E/R)

to CPU of IPDM E/R,

through 15A fuse (No. 71, located in the IPDM E/R)

to CPU of IPDM E/R.
Ground is supplied

to IPDM E/R terminals 38 and 51

from grounds E22 and E43.
When the selector lever in the P or N position, power is supplied

from TCM, and through A/T assembly terminal 9

to IPDM E/R terminal 53.
And then provided that IPDM E/R receives a starter relay ON signal with CAN communication, starter relay is
energized.
With the ignition switch in the START position, power is supplied

through IPDM E/R terminal 3

to starter motor terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.