ECM RESET INFINITI M35 2006 Factory Service Manual

DIAGNOSIS SYSTEM
AV-97
[WITHOUT MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2006 January2006 M35/M45
VEHICLE CAN DIAGNOSIS
CAN communication status and error counter is displayed.
Error counter displays 0 if any malfunction is not detected in the
past. If the malfunction is detected, it displays 40. When turning
the ignition switch ON, if it is normal, it displays 39. The lower
limit of the counter is 1.
If it is reset, the error counter is deleted.
NOTE:
“???” indicates “UNKWN”.
AV COMM DIAGNOSIS
Displays the communication condition between AV (NAVI) con-
trol unit (master unit) and each unit and between audio unit
(sub-master unit) and each unit.
Error counter displays 0 if any malfunction is not detected in the
past. If the malfunction is detected, it displays 40. When turning
the ignition switch ON, if it is normal, it displays 39. The lower
limit of the counter is 1.
If it is reset, the error counter is deleted.
ITM: AV (NAVI) control unit
NOTE:
“???” indicates “UNKWN”.Items Display (Current)Error counter
(Past)
Tx (HVAC) OK /??? 0 - 40
Rx (ECM) OK /??? 0 - 40
Rx (Cluster) OK /??? 0 - 40
Rx (BCM) OK /??? 0 - 40
Rx (HVAC) OK /??? 0 - 40
Rx (USM) OK /??? 0 - 40
Rx (TPMS) OK /??? 0 - 40
SKIB3666E
ItemsStatus
(Current)Counter
(Past)
C Tx (ITM-PrimarySW) OK /??? 0 - 40
C Rx (PrimarySW-ITM) OK /??? 0 - 40
C Rx (STRG SW-ITM) OK /??? 0 - 40
C Rx (RrSeatSW-ITM) OK /??? 0 - 40
C Rx (Audio-ITM) OK /??? 0 - 40
C Rx (Amp-ITM) OK /??? 0 - 40
C Rx (RearCamera-ITM) OK /??? 0 - 40
C Rx (DVD-ITM) OK /??? 0 - 40
C Rx (Amp-Audio) OK /??? 0 - 40
C Rx (DVD-Audio) OK /??? 0 - 40SKIB3667E

DIAGNOSIS SYSTEM
AV-241
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2006 January2006 M35/M45
VEHICLE CAN DIAGNOSIS
CAN communication status and error counter is displayed.
Error counter displays 0 if any malfunction is not detected in the
past. If the malfunction is detected, it displays 40. When turning
the ignition switch ON, if it is normal, it displays 39. The lower
limit of the counter is 1.
If it is reset, the error counter is deleted.
NOTE:
??? indicates “UNKWN”.
AV COMM DIAGNOSIS
Displays the communication condition between AV (NAVI) con-
trol unit (master unit) and each unit and between audio unit
(sub-master unit) and each unit.
Error counter displays 0 if any malfunction is not detected in the
past. If the malfunction is detected, it displays 40. When turning
the ignition switch ON, if it is normal, it displays 39. The lower
limit of the counter is 1.
If it is reset, the error counter is deleted.
DVD-ROM Communication Error
Malfunction is detected on DVD-
ROM drive pickup lens in NAVI con-
trol unit
There is dirt and damage on the map
disc
Map disc
NAVI control unit
Refer to AV-290, "
AV (NAVI) Control
Unit"
DVD-ROM Read Error
DVD-ROM Disc Error
DVD-ROM Mechanism not Detected
DVD-ROM Mechanism Error
DVD-ROM Focus Error
DVD-ROM TOC Error
DVD-ROM Seek Error
DVD-ROM Error Correction Error
DVD-ROM Data Transfer Error
DVD-ROM Data Error
DVD-ROM Time-out
DVD-ROM Loading / Eject Error
CAN Controller Memory Error
AV (NAVI) control unit malfunction is
detectedReplace AV (NAVI) control unit
Refer to AV-290, "
AV (NAVI) Control Unit"Bluetooth Module Connection ErrorError item Description Possible cause/Action to take
Items Display (Current)Error counter
(Past)
Tx (HVAC) OK /??? 0 - 40
Rx (ECM) OK /??? 0 - 40
Rx (Cluster) OK /??? 0 - 40
Rx (BCM) OK /??? 0 - 40
Rx (HVAC) OK /??? 0 - 40
Rx (USM) OK /??? 0 - 40
Rx (TPMS) OK /??? 0 - 40
SKIB3666E
ItemsStatus
(Current)Counter
(Past)
C Tx (ITM-PrimarySW) OK /??? 0 - 40
C Rx (PrimarySW-ITM) OK /??? 0 - 40
C Rx (STRG SW-ITM) OK /??? 0 - 40SKIB3667E

BCM (BODY CONTROL MODULE)
BCS-15
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BCS
Revision: 2006 January2006 M35/M45
WORK SUPPORT
Operation Procedure
1. Touch “BCM” on “SELECT TEST ITEM” screen.
2. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
3. Touch “RESET SETTING VALUE” on “SELECT WORK ITEM” screen.
4. Touch “START”.
5. “RESET SETTING VALUE OK?” displayed, and touch “YES”.
6. The setting will be changed and “COMPLETED” will be displayed.
7. Touch “END”.
Display Item List
CAN DIAG SUPPORT MNTR
Refer to LAN-20, "CAN Diagnostic Support Monitor" .
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)NKS003XL
1. CHECK SELF-DIAGNOSTIC RESULT
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. Connect to CONSULT-II, and select “BCM” on “SELECT SYSTEM” screen.
2. Select “BCM” on “SELECT DIAG MODE” screen, and select “SELF-DIAG RESULTS”.
3. Check display content in self-diagnostic results.
Contents displayed
No malfunction>>INSPECTION END
Malfunction in CAN communication system>>After printing the monitor items, go to “CAN System”. Refer to
LAN-7, "
Precautions When Using CONSULT-II" .
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
CONSULT-II display code Diagnosis item
U1000TRANSMIT DIAG
ECM
IPDM E/R
METER / M&A
I - KEY

ENGINE CONTROL SYSTEM
EC-31
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
Multiport Fuel Injection (MFI) SystemNBS004S3
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from the crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the mass air flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.

During warm-up
When starting the engine
During acceleration
Hot-engine operation
When selector lever is changed from N to D
High-load, high-speed operation

During deceleration
During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Battery
Battery voltage*
3
Knock sensor Engine knocking condition
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
ABS actuator and electric unit (control unit)*
2VDC/TCS operation command
Air conditioner switch*
2Air conditioner operation
Wheel sensor*
2Vehicle speed

EC-72
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 January2006 M35/M45
OBD System Operation ChartNBS004SP
RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS
When a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are
stored in the ECM memory.
When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are
stored in the ECM memory, and the MIL will come on. For details, refer to EC-54, "
Two Trip Detection
Logic" .
The MIL will go off after the vehicle is driven 3 times (driving pattern B) with no malfunction. The drive is
counted only when the recorded driving pattern is met (as stored in the ECM). If another malfunction
occurs while counting, the counter will reset.
The DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A)
without the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and
Fuel Injection System, the DTC and freeze frame data will be stored until the vehicle is driven 80 times
(driving pattern C) without the same malfunction recurring. The “TIME” in “SELF-DIAGNOSTIC
RESULTS” mode of CONSULT-II will count the number of times the vehicle is driven.
The 1st trip DTC is not displayed when the self-diagnosis results in OK for the 2nd trip.
SUMMARY CHART
For details about patterns B and C under “Fuel Injection System” and “Misfire”, see EC-74, "EXPLANATION FOR DRIVING PATTERNS
FOR “MISFIRE ”, “FUEL INJECTION SYSTEM”" .
For details about patterns A and B under Other, see EC-76, "
EXPLANATION FOR DRIVING PATTERNS EXCEPT FOR “MISFIRE
”, “FUEL INJECTION SYSTEM”" .
*1: Clear timing is at the moment OK is detected.
*2: Clear timing is when the same malfunction is detected in the 2nd trip. Items Fuel Injection System Misfire Other
MIL (goes off) 3 (pattern B) 3 (pattern B) 3 (pattern B)
DTC, Freeze Frame Data (no
display)80 (pattern C) 80 (pattern C) 40 (pattern A)
1st Trip DTC (clear)
1 (pattern C), *
11 (pattern C), *11 (pattern B)
1st Trip Freeze Frame Data
(clear)*1, *2 *1, *2 1 (pattern B)

TROUBLE DIAGNOSIS
EC-141
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45TRVL AFTER MIL
[km] or [mile]Distance traveled while MIL is activated.
A/F S1 HTR (B1)
[%]
Air fuel ratio (A/F) sensor 1 heater control
value computed by ECM according to the
input signals.
The current flow to the heater becomes
larger as the value increases. A/F S1 HTR (B2)
[%]
AC PRESS SEN
[V]
The signal voltage from the refrigerant
pressure sensor is displayed.
VHCL SPEED SE
[km/h] or [mph]
The vehicle speed computed from the
vehicle speed signal sent from combina-
tion meter is displayed.
SET VHCL SPD
[km/h] or [mph]
The preset vehicle speed is displayed.
MAIN SW
[ON/OFF]
Indicates [ON/OFF] condition from MAIN
switch signal.
CANCEL SW
[ON/OFF]
Indicates [ON/OFF] condition from CAN-
CEL switch signal.
RESUME/ACC SW
[ON/OFF]
Indicates [ON/OFF] condition from
RESUME/ACCELERATE switch signal.
SET SW
[ON/OFF]
Indicates [ON/OFF] condition from SET/
COAST switch signal.
BRAKE SW1
[ON/OFF]
Indicates [ON/OFF] condition from ASCD
brake switch signal.
BRAKE SW2
[ON/OFF]
Indicates [ON/OFF] condition of stop
lamp switch signal.
DIST SW
[ON/OFF]
Indicates [ON/OFF] condition from DIS-
TANCE switch signal.
CRUISE LAMP
[ON/OFF]
Indicates [ON/OFF] condition of CRUISE
lamp determined by the ECM according
to the input signals.
SET LAMP
[ON/OFF]
Indicates [ON/OFF] condition of SET
lamp determined by the ECM according
to the input signals.
FAN D UTY
Indicates a command value for cooling
fan. The value is calculated by ECM
based on input signals.
AC EVA TEMP
Indicates A/C evaporator temperature
sent from “unified meter and A/C amp.”.
AC EVA TARGET
Indicates target A/C evaporator tempera-
ture sent from “unified meter and A/C
amp.”.
ALTDUTY [%]
Indicates the duty ratio of the power gen-
eration command value. The ratio is cal-
culated by ECM based on the battery
current sensor signal.
BAT CUR SEN
[mV]
The signal voltage of battery current sen-
sor is displayed. Monitored item
[Unit]ECM
INPUT
SIG-
NALSMAIN
SIG-
NALSDescription Remarks

TROUBLE DIAGNOSIS
EC-147
[VQ35DE]
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Revision: 2006 January2006 M35/M45
FUNCTION
INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect “GST” to data link connector (1), which is located under
LH dash panel near the hood opener handle.
Diagnostic Service Function
Service $01 READINESS TESTSThis diagnostic service gains access to current emission-related data values, including
analog inputs and outputs, digital inputs and outputs, and system status information.
Service $02 (FREEZE DATA)This diagnostic service gains access to emission-related data value which were stored by
ECM during the freeze frame. For details, refer to EC-59, "
FREEZE FRAME DATA AND
1ST TRIP FREEZE FRAME DATA" .
Service $03 DTCsThis diagnostic service gains access to emission-related power train trouble codes which
were stored by ECM.
Service $04 CLEAR DIAG INFOThis diagnostic service can clear all emission-related diagnostic information. This
includes:
Clear number of diagnostic trouble codes (Service $01)
Clear diagnostic trouble codes (Service $03)
Clear trouble code for freeze frame data (Service $01)
Clear freeze frame data (Service $02)
Reset status of system monitoring test (Service $01)
Clear on board monitoring test results (Service $06 and $07)
Service $06 (ON BOARD TESTS)This diagnostic service accesses the results of on board diagnostic monitoring tests of
specific components/systems that are not continuously monitored.
Service $07 (ON BOARD TESTS)This diagnostic service enables the off board test drive to obtain test results for emission-
related powertrain components/systems that are continuously monitored during normal
driving conditions.
Service $08 —This diagnostic service can close EVAP system in ignition switch ON position (Engine
stopped). When this diagnostic service is performed, EVAP canister vent control valve
can be closed.
In the following conditions, this diagnostic service cannot function.
Low ambient temperature
Low battery voltage
Engine running
Ignition switch OFF
Low fuel temperature
Too much pressure is applied to EVAP system
Service $09 (CALIBRATION ID)This diagnostic service enables the off-board test device to request specific vehicle infor-
mation such as Vehicle Identification Number (VIN) and Calibration IDs.
PBIB2712E

ENGINE CONTROL SYSTEM
EC-741
[VK45DE]
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EC
Revision: 2006 January2006 M35/M45
Multiport Fuel Injection (MFI) SystemNBS0059J
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from the crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the mass air flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.

During warm-up
When starting the engine
During acceleration
Hot-engine operation
When selector lever is changed from N to D
High-load, high-speed operation

During deceleration
During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Battery
Battery voltage*
3
Knock sensor Engine knocking condition
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
ABS actuator and electric unit (control unit)*
2VDC/TCS operation command
Air conditioner switch*
2Air conditioner operation
Wheel sensor*
2Vehicle speed

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-783
[VK45DE]
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EC
Revision: 2006 January2006 M35/M45
When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are
stored in the ECM memory, and the MIL will come on. For details, refer to EC-764, "
Two Trip Detection
Logic" .
The MIL will go off after the vehicle is driven 3 times (driving pattern B) with no malfunction. The drive is
counted only when the recorded driving pattern is met (as stored in the ECM). If another malfunction
occurs while counting, the counter will reset.
The DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A)
without the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and
Fuel Injection System, the DTC and freeze frame data will be stored until the vehicle is driven 80 times
(driving pattern C) without the same malfunction recurring. The “TIME” in “SELF-DIAGNOSTIC
RESULTS” mode of CONSULT-II will count the number of times the vehicle is driven.
The 1st trip DTC is not displayed when the self-diagnosis results in OK for the 2nd trip.
SUMMARY CHART
For details about patterns B and C under “Fuel Injection System” and “Misfire”, see EC-785, "EXPLANATION FOR DRIVING PAT-
TERNS FOR “MISFIRE ”, “FUEL INJECTION SYSTEM”" .
For details about patterns A and B under Other, see EC-787, "
EXPLANATION FOR DRIVING PATTERNS EXCEPT FOR “MISFIRE
”, “FUEL INJECTION SYSTEM”" .
*1: Clear timing is at the moment OK is detected.
*2: Clear timing is when the same malfunction is detected in the 2nd trip. Items Fuel Injection System Misfire Other
MIL (goes off) 3 (pattern B) 3 (pattern B) 3 (pattern B)
DTC, Freeze Frame Data (no
display)80 (pattern C) 80 (pattern C) 40 (pattern A)
1st Trip DTC (clear)
1 (pattern C), *
11 (pattern C), *11 (pattern B)
1st Trip Freeze Frame Data
(clear)*1, *2 *1, *2 1 (pattern B)

EC-854
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
VEHICLE SPEED
[km/h] or [MPH]The vehicle speed computed from the
vehicle speed signal sent from TCM is
displayed.
IDL A/V LEARN
[YET/CMPLT]
Display the condition of idle air volume
learning
YET: Idle air volume learning has not
been performed yet.
CMPLT: Idle air volume learning has
already been performed successfully.
TRVL AFTER MIL
[km] or [mile]
Distance traveled while MIL is activated.
A/F S1 HTR (B1)
[%]
Air fuel ratio (A/F) sensor 1 heater control
value computed by ECM according to the
input signals.
The current flow to the heater becomes
larger as the value increases. A/F S1 HTR (B2)
[%]
AC PRESS SEN
[V]
The signal voltage from the refrigerant
pressure sensor is displayed.
VHCL SPEED SE
[km/h] or [mph]
The vehicle speed computed from the
vehicle speed signal sent from combina-
tion meter is displayed.
SET VHCL SPD
[km/h] or [mph]
The preset vehicle speed is displayed.
MAIN SW
[ON/OFF]
Indicates [ON/OFF] condition from MAIN
switch signal.
CANCEL SW
[ON/OFF]
Indicates [ON/OFF] condition from CAN-
CEL switch signal.
RESUME/ACC SW
[ON/OFF]
Indicates [ON/OFF] condition from
RESUME/ACCELERATE switch signal.
SET SW
[ON/OFF]
Indicates [ON/OFF] condition from SET/
COAST switch signal.
BRAKE SW1
[ON/OFF]
Indicates [ON/OFF] condition from ASCD
brake switch signal.
BRAKE SW2
[ON/OFF]
Indicates [ON/OFF] condition of stop
lamp switch signal.
DIST SW
[ON/OFF]
Indicates [ON/OFF] condition from DIS-
TANCE switch signal.
CRUISE LAMP
[ON/OFF]
Indicates [ON/OFF] condition of CRUISE
lamp determined by the ECM according
to the input signals.
SET LAMP
[ON/OFF]
Indicates [ON/OFF] condition of SET
lamp determined by the ECM according
to the input signals.
FAN DUTY
Indicates a command value for cooling
fan. The value is calculated by ECM
based on input signals.
AC EVA TEMP
Indicates A/C evaporator temperature
sent from “unified meter and A/C amp.”.
AC EVA TARGET
Indicates target A/C evaporator tempera-
ture sent from “unified meter and A/C
amp.”. Monitored item
[Unit]ECM
INPUT
SIG-
NALSMAIN
SIG-
NALSDescription Remarks