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![INFINITI M35 2006 Factory Service Manual EC-842
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
67 B/WSensor ground
(MAF sensor, IAT sensor,
ECT sensor, EVAP control
system pressure sensor,
PSP sensor, ASCD/ICC
steering swi INFINITI M35 2006 Factory Service Manual EC-842
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
67 B/WSensor ground
(MAF sensor, IAT sensor,
ECT sensor, EVAP control
system pressure sensor,
PSP sensor, ASCD/ICC
steering swi](/manual-img/42/57023/w960_57023-2384.png)
EC-842
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
67 B/WSensor ground
(MAF sensor, IAT sensor,
ECT sensor, EVAP control
system pressure sensor,
PSP sensor, ASCD/ICC
steering switch, Battery cur-
rent sensor, Refrigerant
pressure sensor)[Engine is running]Warm-up condition
Idle speedApproximately 0V
68 L/YSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
69 R Throttle position sensor 2[Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully depressedMore than 0.36V
70 L/R Refrigerant pressure sensor[Engine is running]
Warm-up condition
Both A/C switch and blower fan motor
switch: ON (Compressor operates)1.0 - 4.0V
71 L/R Battery current sensor[Engine is running]
Battery: Fully charged*
Idle speedApproximately 2.6 - 3.5V
72 LIntake valve timing control
position sensor (bank 1)[Engine is running]
Warm-up condition
Idle speed0 - 1.0V
[Engine is running]
Engine speed: 2,000rpm0 - 1.0V
73 Y/BEngine coolant temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature.
74 WHeated oxygen sensor 2
(bank 2)[Engine is running]
Warm-up condition
Revving engine from idle to 3,000 rpm
quickly after the following conditions are met
–After keeping the engine speed between
3,500 and 4,000 rpm for 1 minute and at idle
for 1 minute under no load0 - Approximately 1.0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB2734E
PBIB2735E
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EC-843
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(Heated oxygen sensor 2)[Engine is running]Warm-up condition
Idle speedApproximately 0V
INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
EC-843
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(Heated oxygen sensor 2)[Engine is running]Warm-up condition
Idle speedApproximately 0V](/manual-img/42/57023/w960_57023-2385.png)
TROUBLE DIAGNOSIS
EC-843
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(Heated oxygen sensor 2)[Engine is running]Warm-up condition
Idle speedApproximately 0V
82 WSensor ground
(APP sensor 1)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
83 PSensor ground
(APP sensor 2)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
85 V Data link connector[Ignition switch: ON]
CONSULT-II or GST: DisconnectedApproximately 5V - Battery volt-
age (11 - 14V)
86 P CAN communication line[Ignition switch: ON]Approximately 1.1 - 2.3V
Output voltage varies with the
communication status.
90 LSensor power supply
(APP sensor 1)[Ignition switch: ON]Approximately 5V
91 BRSensor power supply
(APP sensor 2)[Ignition switch: ON]Approximately 5V
94 L CAN communication line[Ignition switch: ON]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
98 RAccelerator pedal position
sensor 2[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.20 - 0.55V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed1.85 - 2.40V
99 G/YICC steering switch
(models with ICC system)[Ignition switch: ON]
ICC steering switch: OFFApproximately 4.3V
[Ignition switch: ON]
MAIN switch: PressedApproximately 0V
[Ignition switch: ON]
CANCEL switch: PressedApproximately 1.3V
[Ignition switch: ON]
RESUME/ACCELERATE switch: PressedApproximately 3.7V
[Ignition switch: ON]
SET/COAST switch: PressedApproximately 3V
[Ignition switch: ON]
DISTANCE switch: PressedApproximately 2.2V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
Page 2387 of 5621
![INFINITI M35 2006 Factory Service Manual EC-844
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
99 YASCD steering switch
(models with ASCD system)[Ignition switch: ON]
ASCD steering switch: OFFApproximately 4V
[Ignition switch: INFINITI M35 2006 Factory Service Manual EC-844
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
99 YASCD steering switch
(models with ASCD system)[Ignition switch: ON]
ASCD steering switch: OFFApproximately 4V
[Ignition switch:](/manual-img/42/57023/w960_57023-2386.png)
EC-844
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
99 YASCD steering switch
(models with ASCD system)[Ignition switch: ON]
ASCD steering switch: OFFApproximately 4V
[Ignition switch: ON]
MAIN switch: PressedApproximately 0V
[Ignition switch: ON]
CANCEL switch: PressedApproximately 1V
[Ignition switch: ON]
RESUME/ACCELERATE switch: PressedApproximately 3V
[Ignition switch: ON]
SET/COAST switch: PressedApproximately 2V
101 V/R Stop lamp switch[Ignition switch: OFF]
Brake pedal: Fully releasedApproximately 0V
[Ignition switch: OFF]
Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V)
102 G PNP switch[Ignition switch: ON]
Selector lever: P or NApproximately 0V
[Ignition switch: ON]
Selector lever: Except aboveBATTERY VOLTAGE
(11 - 14V)
104 O Throttle control motor relay[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]0 - 1.0V
106 LGAccelerator pedal position
sensor 1[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.4 - 1.1V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed3.7 - 4.8V
107 V/WFuel tank temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with fuel
tank temperature.
108 BRICC brake switch (models
witch ICC system)
ASCD brake switch (models
witch ASCD system)[Ignition switch: ON]
Brake pedal: Slightly depressedApproximately 0V
[Ignition switch: ON]
Brake pedal: Fully releasedBATTERY VOLTAGE
(11 - 14V)
109 L Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
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) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
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TROUBLE DIAGNOSIS
EC-845
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to SC-5, "
SPECIFIC GRAVITY CHECK" . 113 GR Fuel pump relay[Ignition switch: ON]
For 1 second after turning ignition switch ON
[Engine is running]0 - 1.5V
[Ignition switch: ON]
More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V)
11 5
11 6B
BECM ground[Engine is running]
Idle speedBody ground
11 7 G R / LEVAP canister vent control
valve[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
11 9
120R
RPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
121 LPower supply for ECM
(Back-up)[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
Page 2389 of 5621
![INFINITI M35 2006 Factory Service Manual EC-846
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
CONSULT-II Function (ENGINE)NBS005AN
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memo INFINITI M35 2006 Factory Service Manual EC-846
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
CONSULT-II Function (ENGINE)NBS005AN
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memo](/manual-img/42/57023/w960_57023-2388.png)
EC-846
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
CONSULT-II Function (ENGINE)NBS005AN
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
Diagnostic trouble codes
1st trip diagnostic trouble codes
Freeze frame data
1st trip freeze frame data
System readiness test (SRT) codes
Test valuesDiagnostic test mode Function
Work supportThis mode enables a technician to adjust some devices faster and more accurately by following the
indications on the CONSULT-II unit.
Self-diagnostic resultsSelf-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data
can be read and erased quickly.*
Data monitor Input/Output data in the ECM can be read.
Data monitor (SPEC)Input/Output of the specification for Basic fuel schedule, AFM, A/F feedback control value and the
other data monitor items can be read.
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.
Active testDiagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
DTC & SRT confirmation The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
Function test This mode is used to inform customers when their vehicle condition requires periodic maintenance.
ECM part number ECM part number can be read.
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ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-D INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
EC-847
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ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
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TROUBLE DIAGNOSIS
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ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
DATA
MONI-
TORDATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC & SRT
CONFIRMATION
DTC*1FREEZE
FRAME
DATA*2SRT
STATUSDTC
WORK
SUP-
PORT
ENGINE CONTROL COMPONENT PARTS
INPUT
Crankshaft position sensor (POS)
Camshaft position sensor
(PHASE)
Mass air flow sensor
Engine coolant temperature sen-
sor
Air fuel ratio (A/F) sensor 1
Heated oxygen sensor 2
Wheel sensor
Accelerator pedal position sensor
Throttle position sensor
Fuel tank temperature sensor
EVAP control system pressure
sensor
Intake air temperature sensor
Knock sensor
Refrigerant pressure sensor
Closed throttle position switch
(accelerator pedal position sensor
signal)
Air conditioner switch
Park/neutral position (PNP) switch
Stop lamp switch
Power steering pressure sensor
Battery voltage
Load signal
Intake valve timing control position
sensor
Fuel level sensor
Battery current sensor
ICC steering switch
ASCD steering switch
ICC brake switch
ASCD brake switch
Page 2391 of 5621
![INFINITI M35 2006 Factory Service Manual EC-848
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The it INFINITI M35 2006 Factory Service Manual EC-848
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The it](/manual-img/42/57023/w960_57023-2390.png)
EC-848
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-II screen in freeze frame data
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-770
.
*3: Always “CMPLT” is displayed.
INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector (1), which is located under LH dash panel near
the hood opener handle.
3. Turn ignition switch ON.
ENGINE CONTROL COMPONENT PARTS
OUTPUT
Fuel injector
Power transistor (Ignition timing)
Throttle control motor relay
Throttle control motor
EVAP canister purge volume con-
trol solenoid valve
FPCM
Air conditioner relay
Fuel pump relay
Cooling fan control module
Air fuel ratio (A/F) sensor 1 heater*3
Heated oxygen sensor 2 heater*3
EVAP canister vent control valve
Intake valve timing control solenoid
valve
VIAS control solenoid valve
Alternator
Calculated load value
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
DATA
MONI-
TORDATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC & SRT
CONFIRMATION
DTC*1FREEZE
FRAME
DATA*2SRT
STATUSDTC
WORK
SUP-
PORT
PBIB2712E
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TROUBLE DIAGNOSIS
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4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “ENGINE”.
If “ENGINE” is not indicated, go to GI-40, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Manual.
WORK SUPPORT MODE
Work Item
BCIA0029E
BCIA0030E
BCIA0031E
WORK ITEM CONDITION USAGE
FUEL PRESSURE RELEASE
FUEL PUMP WILL STOP BY TOUCHING “START” DUR-
ING IDLING.
CRANK A FEW TIMES AFTER ENGINE STALLS.When releasing fuel pressure
from fuel line
IDLE AIR VOL LEARN
THE IDLE AIR VOLUME THAT KEEPS THE ENGINE
WITHIN THE SPECIFIED RANGE IS MEMORIZED IN
ECM.When learning the idle air volume
SELF-LEARNING CONT
THE COEFFICIENT OF SELF-LEARNING CONTROL
MIXTURE RATIO RETURNS TO THE ORIGINAL COEF-
FICIENT.When clearing the coefficient of
self-learning control value