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Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> ADAS Control Unit >> System Description >> Diagnosis System (ADAS Control Unit) >> Diagnosis Description >> Work Support
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Work Support

Work support items

Description

CAUSE OF AUTO-CANCEL 1

Displays causes of automatic system cancellation occurred during control of the following systems

  • Vehicle-to-vehicle control MODE
  • Conventional (fixed speed) control MODE
  • Forward Emergency Braking (FEB)

CAUSE OF AUTO-CANCEL 2

Displays causes of automatic system cancellation occurred during control of the following systems

  • Lane Departure Prevention (LDP)
  • Blind Spot Intervention

CAUSE OF AUTO-CANCEL 6

Displays causes of automatic system cancellation occurred during control of the RAB systems

FEB OPERATION MILEAGE

Displays mileage at FEB system operation

FEB DEFAULT SETTING

ON/OFF setting of FEB system at engine start can be changed

NOTE:
  • Causes of the maximum five cancellations (system cancel) are displayed.
  • The displayed cancellation causes display the number of the ignition switch ON/OFF up to 254. It is fixed to 254 if it is over 254. It returns to 0 when the same cancellation cause is detected again.

Display Items for The Cause of Automatic Cancellation 1 

Cause of cancellation

Vehicle-to-vehicle distance control MODE

  • Conventional (fixed speed) cruise control MODE
  • Automatic Speed Control Device (ASCD)

Forward Emergency Braking

Description

OPERATING ABS

x

x

ABS function was operated

OPERATING TCS

x

x

TCS function was operated

OPERATING VDC

x

x

x

VDC function was operated

ECM CIRCUIT

x

x

ECM did not permit ICC/ProPILOT Assist operation

OPE SW VOLT CIRC

x

x

The ICC/ProPILOT Assist steering switch input voltage is not within standard range

SNOW MODE SW

x

Shifting of the drive MODE selector to SNOW position

OP SW DOUBLE TOUCH

x

x

ICC/ProPILOT Assist steering switches were pressed at the same time

VHCL SPD DOWN

x

x

Vehicle speed lower than the speed as follows

  • Vehicle-to-vehicle distance control MODE is 25 km/h (15 MPH)
  • Conventional (fixed speed) cruise control MODE is 32 km/h (20 MPH)

WHL SPD ELEC NOISE

x

x

Wheel speed sensor signal caught electromagnetic noise

VDC/TCS OFF SW

x

x

VDC OFF switch was pressed

VHCL SPD UNMATCH

x

x

Wheel speed became different from A/T vehicle speed

TIRE SLIP

x

x

Wheel slipped

IGN LOW VOLT

x

x

x

Decrease in ADAS control unit ignition voltage

PARKING BRAKE ON

x

x

The parking brake is operating

WHEEL SPD UNMATCH

x

x

The wheel speeds of 4 wheels are out of the specified values

INCHING LOST

x

A vehicle ahead is not detected during the following driving when the vehicle speed is approximately 24 km/h (15 MPH) or less

CAN COMM ERROR

x

x

x

ADAS control unit received an abnormal signal with CAN communication

ABS/TCS/VDC CIRC

x

x

x

An abnormal condition occurs in VDC/TCS/ABS system

ECD CIRCUIT

x

x

x

An abnormal condition occurs in ECD system

ENG SPEED DOWN

x

x

Engine speed became extremely low while controlling ProPILOT assist system

ASCD VHCL SPD DTAC

x

Vehicle speed is detached from set vehicle speed

ASCD DOUBLE COMD

x

Cancel switch and operation switch are detected simultaneously

APA HI TEMP

The accelerator pedal actuator integrated motor temperature is high

ICC SENSOR CAN COMM ERR

x

x

Communication error between ADAS control unit and the distance sensor

ABS WARNING LAMP

x

ABS warning lamp ON

FR RADAR BLOCKED

x

x

Inclusion of dirt or stains on the distance sensor area of the front bumper

FEB) CURVATURE

x

Road curve was more than the specified value

FEB) YAW RATE

x

Detected yawing speed was more than the specified value

FEB) LTRL ACCELERATION

x

Detected lateral speed is the specified value or more

RADAR INTERFERENCE

x

x

Distance sensor receives electromagnetic interference

LANE CAMERA BLOCKED

x

Inclusion of dirt or stain on lane camera field of view (example) window with fogging, window with dirt, strong light from front etc...)

Lane camera offset center

x

Significant change in vehicle attitude or improper installation position of lane camera

NOTE: If "Lane camera offset center" is frequently detected, check vehicle attitude (e.g. tire pressure) and installation condition of lane camera. After this inspection, perform front camera aiming again.

NO RECORD

x

x

--

Display Items for The Cause of Automatic Cancellation 2 

Cause of cancellation

Lane departure prevention

Blind spot intervention

Description

OPE VDC/TCS/ABS 1

x

The activation of VDC, TCS, or ABS during LDP system control

Vehicle dynamics

x

Vehicle behavior exceeds specified value

Steering speed

x

Steering speed was more than the specified value in evasive direction

End by yaw angle

x

Yaw angle was the end of LDP control

Departure yaw large

x

Detected more than the specified value of yaw angle in departure direction

ICC WARNING

x

Target approach warning of ICC/ProPILOT Assist system, FEB system, or PFCW system was activated

CURVATURE

x

Road curve was more than the specified value

Steering angle large

x

Steering angle was more than the specified value

Brake is operated

x

Brake pedal was operated

IGN LOW VOLT

x

Decrease in ADAS control unit IGN voltage

Lateral offset

x

Distance of vehicle and lane was detached in lateral direction more than the specified value

Lane marker lost

x

Front camera unit lost the trace of lane marker

Lane marker unclear

x

Detected lane marker was unclear

Yaw acceleration

x

Detected yawing speed was more than the specified value

Deceleration large

x

Deceleration in a longitudinal direction was more than the specified value

Accel is operated

x

Accelerator pedal was depressed

Departure steering

x

Steering wheel was steered more than the specified value in departure direction

Evasive steering

x

Steering wheel was steered more than the specified value in the evasive direction

R range

x

Selector lever was operated to R range

Parking brake drift

x

Rear wheels lock was detected

Not operating condition

x

Did not meet the operating condition (vehicle speed, turn signal operation, etc.)

SNOW MODE SW

x

Shifting of the drive MODE selector to SNOW position

VDC OFF SW

x

VDC OFF switch was pressed

OPE VDC/ABS 2

x

The activation of VDC or ABS during a standby time of LDP system control

BSI WARNING

x

Blind Spot Intervention system was activated

LANE CAMERA BLOCKED

x

Inclusion of dirt or stain on lane camera field of view (example) window with fogging, window with dirt, strong light from front etc...)

Lane camera offset center

x

Significant change in vehicle attitude or improper installation position of lane camera

NOTE: If "Lane camera offset center" is frequently detected, check vehicle attitude (e.g. tire pressure) and installation condition of lane camera. After this inspection, perform front camera aiming again.

BSI) OPE VDC/TCS/ABS 1

x

The activation of VDC, TCS, or ABS during Blind Spot Intervention system control

BSI) Vehicle dynamics

x

Vehicle behavior exceeds specified value

BSI) Steering speed

x

Steering speed was more than the specified value in evasive direction

BSI) End by yaw angle

x

Yaw angle was the end of Blind Spot Intervention control

BSI) Departure yaw large

x

Detected more than the specified value of yaw angle in departure direction

BSI) ICC WARNING

x

Target approach warning of ICC/ProPILOT Assist system, FEB system or PFCW system was activated

BSI) CURVATURE

x

Road curve was more than the specified value

BSI) Steering angle large

x

Steering angle was more than the specified value

BSI) Brake is operated

x

Brake pedal was operated

BSI) IGN LOW VOLT

x

Decrease in ADAS control unit IGN voltage

BSI) Lateral offset

x

Distance of vehicle and lane was detached in lateral direction more than the specified

BSI) Lane marker lost

x

Front camera unit lost the trace of lane marker

BSI) Lane marker unclear

x

Detected lane marker was unclear

BSI) Yaw acceleration

x

Detected yawing speed was more than the specified value

BSI) Deceleration large

x

Deceleration in a longitudinal direction was more than the specified value

BSI) Accel is operated

x

Accelerator pedal was depressed

BSI) Departure steering

x

Steering wheel was steered more than the specified value in departure direction

BSI) Evasive steering

x

Steering wheel was steered more than the specified value in the evasive direction

BSI) R range

x

Selector lever was operated to R range

BSI) Parking brake drift

x

Rear wheels lock was detected

BSI) SNOW MODE SW

x

Shifting of the drive MODE selector to SNOW position

BSI) VDC OFF SW

x

VDC OFF switch was pressed

BSI) OPE VDC/ABS 2

x

The activation of VDC or ABS during a standby time of Blind Spot Intervention system control

BSI) Not operating condition

x

Did not meet the operating condition (vehicle speed, turn signal operation, etc.)

Side Radar Lost

x

Unrecognized side radar LH or RH by the ADAS control unit

NO RECORD

x

x

--

Display Items for The Cause of Automatic Cancellation 6 

Cause of cancellation

Description

CAN COMM ERROR

ADAS control unit received an abnormal signal with CAN communication

VDC OFF SW

VDC OFF switch was pressed

ACCEL IS OPERATED 1

Accelerator pedal was depressed

ACCEL IS OPERATED 2

Accelerator pedal was depressed

ECD CIRCUIT

ADAS control unit received and abnormal signal with CAN communication

GRADIENT LARGE

Slope, such as uphill, inclination was too steep

IGN LOW VOLT

Decrease in ADAS control unit ignition voltage

BRAKE IS OPERATED

Brake pedal was operated

STEERING ANGLE LARGE

Steering angle was more than the specified value

SONAR CIRCUIT

Malfunction of sonar control unit

NO RECORD

--

FEB Default Setting 

Setting item

Description

On

(Factory setting)

FEB are turned ON automatically when engine started.

Off

FEB are not turned ON automatically when engine started.