2006 INFINITI M35 Factory Service Manual

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Page 2289 of 5621

INFINITI M35 2006 Factory Service Manual EC-746
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Revision: 2006 January2006 M35/M45
AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionNBS0059O
INPUT/OUTPUT SIGNAL CHART
*: This sig

EC-746
[VK45DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Revision: 2006 January2006 M35/M45
AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionNBS0059O
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE lamp and SET lamp in combination meter. If any malfunc-
tion occurs in ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (The CRUISE lamp in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET lamp in combination meter illuminates.)
ACCEL OPERATION
If the RESUME/ACCELERATE switch is pressed during cruise control driving, increase the vehicle speed until
the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
CANCEL switch is pressed
More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
Brake pedal is depressed
Selector lever is changed to N, P, R position
Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
TCS system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator Stop lamp switch Brake pedal operation
ASCD steering switch ASCD steering switch operation
Park/Neutral position (PNP)
switchGear position
Wheel sensor* Vehicle speed
TCM* Powertrain revolution

Page 2290 of 5621

INFINITI M35 2006 Factory Service Manual AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-747
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Revision: 2006 January2006 M35/M45
COAST OPERATION
When the SET/COAST switch is pressed during cruise control driving,

Page 2291 of 5621

INFINITI M35 2006 Factory Service Manual EC-748
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CAN COMMUNICATION
Revision: 2006 January2006 M35/M45
CAN COMMUNICATIONPFP:23710
System DescriptionNBS0059Q
CAN (Controller Area Network) is a serial communication line for real time ap

Page 2292 of 5621

INFINITI M35 2006 Factory Service Manual EVAPORATIVE EMISSION SYSTEM
EC-749
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Revision: 2006 January2006 M35/M45
EVAPORATIVE EMISSION SYSTEMPFP:14950
DescriptionNBS0059R
SYSTEM DESCRIPTION
The evaporative emi

Page 2293 of 5621

INFINITI M35 2006 Factory Service Manual EC-750
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EVAPORATIVE EMISSION SYSTEM
Revision: 2006 January2006 M35/M45
EVAPORATIVE EMISSION LINE DRAWING
: Vehicle front : From next page
1. Intake manifold collector 2. EVAP canister purge vo

Page 2294 of 5621

INFINITI M35 2006 Factory Service Manual EVAPORATIVE EMISSION SYSTEM
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Revision: 2006 January2006 M35/M45
: Vehicle front : To previous page
1. EVAP canister vent control valve 2. EVAP canister 3. EVAP

Page 2295 of 5621

INFINITI M35 2006 Factory Service Manual EC-752
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EVAPORATIVE EMISSION SYSTEM
Revision: 2006 January2006 M35/M45
Component InspectionNBS0059S
EVAP CANISTER
Check EVAP canister as follows:
1. Block port (B).
2. Blow air into port (A) a

Page 2296 of 5621

INFINITI M35 2006 Factory Service Manual EVAPORATIVE EMISSION SYSTEM
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Revision: 2006 January2006 M35/M45
EVAP SERVICE PORT
Positive pressure is delivered to the EVAP system through the EVA P
service p

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