Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Data List / Active Test

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Engine & Hybrid System / Cruise Control / Front Camera System / Data List / Active Test

DATA LIST / ACTIVE TEST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

The actual values may differ from the values listed in the chart under "Reference Value" due to climate, weather conditions, etc.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

DATA LIST

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / Front Recognition Camera / Data List.

(e) Read the Data List according to the display on the Techstream.

Chassis > Front Recognition Camera > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

-

-

-

Cannot be used

Total Distance Traveled - Unit

-

-

-

Cannot be used

VGRS ECU Equipped Information

Existence of VGRS system

Absence / Presence

Absence: Not equipped

Presence: Equipped

If the value of this item differs from the specifications of the vehicle, a forward recognition camera which was installed to another vehicle may be installed or the forward recognition camera may be malfunctioning.

DRS System Equipped Information

Existence of DRS system

Absence / Presence

Absence: Not equipped

Presence: Equipped

If the value of this item differs from the specifications of the vehicle, a forward recognition camera which was installed to another vehicle may be installed or the forward recognition camera may be malfunctioning.

Vehicle Information (Steering Wheel Position)

Vehicle information (steering wheel position) stored in forward recognition camera

Unknown / Left / Right

Actual steering wheel position displayed

If the value of this item differs from the specifications of the vehicle, a forward recognition camera which was installed to another vehicle may be installed or the forward recognition camera may be malfunctioning.

HV Equipped Information

Vehicle information (conventional/hybrid) stored in forward recognition camera

Non-HV / HV

Non-HV: Conventional vehicle

HV: Hybrid vehicle

If the value of this item differs from the specifications of the vehicle, a forward recognition camera which was installed to another vehicle may be installed or the forward recognition camera may be malfunctioning.

Steering Vibrator Equipped Information

Existence of steering vibrator

Absent / Present

Absent: Not equipped

Present: Equipped

If the value of this item differs from the specifications of the vehicle, a forward recognition camera which was installed to another vehicle may be installed or the forward recognition camera may be malfunctioning.

Buzzer (Line) Equipped Information

Existence of forward recognition camera buzzer

Absent / Present

Absent: Not equipped

Present: Equipped

If the value of this item differs from the specifications of the vehicle, a forward recognition camera which was installed to another vehicle may be installed or the forward recognition camera may be malfunctioning.

Front Recognition Camera Low Temperature

Existence of forward recognition camera low temperature malfunction

Not Low Temperature / Low Temperature

Not Low Temperature: Approximately -30°C (-22°F) or more

Low Temperature: Less than approximately -30°C (-22°F)
  • If the value of this item is "Low Temperature", "Front Camera Unavailable" is displayed on the multi-information display. If system operation does not return even after warming the cabin, the forward recognition camera may be malfunctioning.
  • If the value of this item is "Low Temperature", Vehicle Control History X2016 is stored.

Front Recognition Camera High Temperature 1

Existence of forward recognition camera high temperature malfunction

Not High Temperature / High Temperature

Not High Temperature: Less than approximately 80°C (176°F)

High Temperature: Approximately 80°C (176°F) or more
  • If the value of this item is "High Temperature", the front camera system is temporarily unavailable. If system operation does not return even after cooling the cabin for 10 minutes or more, the forward recognition camera may be malfunctioning.
  • If the value of this item is "High Temperature", Vehicle Control History X2016 is stored.

HINT:

During summer time, it is possible for the windshield glass to exceed 100°C (212°F).

Front Recognition Camera High Temperature 2

Existence of forward recognition camera high temperature malfunction

Not High Temperature / High Temperature

Not High Temperature: Less than approximately 65°C (149°F)

High Temperature: Approximately 65°C (149°F) or more

If the value of this item is "High Temperature", the automatic high beam system is temporarily unavailable. If system operation does not return even after cooling the cabin for 10 minutes or more, the forward recognition camera may be malfunctioning.

HINT:

During summer time, it is possible for the windshield glass to exceed 100°C (212°F).

Heater Available Information

Existence of forward recognition with heater hood sub-assembly

Absence / Presence

Absence: w/o Forward recognition with heater hood sub-assembly

Presence: w/ Forward recognition with heater hood sub-assembly

The forward recognition camera monitors the flow of current through the forward recognition with heater hood sub-assembly. If the value of this item is "Absence", a new forward recognition camera may have been installed when there is an open in the forward recognition with heater hood sub-assembly circuit.

Heater Control Permit

Forward recognition with heater hood sub-assembly control permission

Not Allow / Allow

Not Allow: Forward recognition with heater hood sub-assembly control prohibited

Allow: Forward recognition with heater hood sub-assembly control activated

If the value of this item is "Not Allow", the following may be the cause of the forward recognition with heater hood sub-assembly control prohibition:

  • DTCs stored by forward recognition camera
  • Vehicle Control History stored by forward recognition camera
  • Air conditioning system malfunction
  • Communication malfunction between forward recognition camera and air conditioning amplifier assembly

Heater Control

Forward recognition with heater hood sub-assembly control state

Not Control / Under Control

Not Control: Forward recognition with heater hood sub-assembly control not performed

Under Control: Forward recognition with heater hood sub-assembly control being performed

If the value of Heater Control Permit is "Allow" and the ambient temperature is 10°C (50°F) or less, the value of this item may repeatedly change between "Under Control" and "Not Control". (w/ Windshield Deicer System: When the windshield deicer is operating, the value of this item will be "Not Control".)

ACTIVE TEST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Pre-Collision System / Active Test.

(e) According to the display on the Techstream, perform the Active Test.

Body Electrical > Pre-Collision System > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

PCS Warning Buzzer

Sounds the skid control buzzer

Active / Not Active

Test possible with engine switch on (IG), vehicle stopped
    Terminals Of Ecu
    TERMINALS OF ECU CHECK FORWARD RECOGNITION CAMERA NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the ...

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK FOR DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Chassis / Front Recognition Camer ...

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