Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Data List / Active Test

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Key System(for Start Function, Hv Model) / Data List / Active Test

DATA LIST / ACTIVE TEST

DATA LIST

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.

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.

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / (desired system) / Data List.

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

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shift P Signal

Shift position P

OFF or ON

OFF: Shift lever not in P

ON: Shift lever in P

Use this item to determine whether the shift lever position switch (P) is malfunctioning.

Steering Unlock Switch

State of steering unlock sensor signal output from steering lock ECU (steering lock actuator or upper bracket assembly)

OFF or ON

OFF: Steering locked

ON: Steering unlocked
  • When the shift lever is in P and the power switch is off, if any door is opened or closed, the steering is locked.
  • When the electrical key transmitter sub-assembly is in the cabin and the power switch is turned on (ACC) or on (IG), the steering unlocks.
  • The hybrid control system cannot be started when the steering unlock signal is off.

Stop Light Switch1

State of brake pedal

OFF or ON

OFF: Brake pedal released

ON: Brake pedal depressed
  • Use this item to determine if the stop light switch assembly is malfunctioning.
  • The hybrid control system cannot be started when this item is OFF.
  • If the stop light switch assembly is malfunctioning, the hybrid control system can be started by pressing and holding the power switch for a certain period of time.

Start Switch1

Power switch 1 status

OFF or ON

OFF: Power switch not pressed

ON: Power switch pressed
  • If the power switch is pressed for a short time, the display may not change.
  • Use this item to determine if the power switch input signal is malfunctioning.

Start Switch2

Power switch 2 status

OFF or ON

OFF: Power switch not pressed

ON: Power switch pressed
  • Backup for power switch 1. However, when the power switch is pressed and held, the control functions only when both power switch 1 and 2 are normal.
  • Behaves the same way as power switch 1.

Latch Circuit

Status of IG related backup circuits

OFF or ON

OFF: Power switch off

ON: Power switch on (IG)
  • Operates in almost the same manner as the IG relay.
  • When the power switch is on (ACC), OFF is displayed.

Starter Request Signal

Hybrid control system start request signal status

OFF or ON

OFF: The power switch is not pressed

ON: With the shift lever in P and the brake pedal depressed, the power switch is pressed and held
  • When the hybrid control system cannot be started due to a start request signal malfunction, OFF is displayed.
  • When the power switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the power switch needs to be pressed and held for a certain period of time.

ACC Relay Monitor

ACC relay activation

OFF or ON

OFF: Power switch off

ON: Power switch on (ACC)

When the power switch is on (IG), ON is displayed.

Vehicle Speed Signal

Vehicle being driven or stopped

Stop or Run

Stop: Vehicle stopped

Run: Vehicle being driven at 5 km/h (3 mph) or more

-

Power Supply Condition

Power supply state

All OFF, ACC ON, IG ON or ST ON

All OFF: Power switch off (ACC and IG)

ACC ON: Power switch on (ACC)

IG ON: Power switch on (IG)

ST ON: Sending hybrid control system start request signal

-

Powertrain Type

Vehicle identification

HV-AT, Cnv-MT, Cnv-AT, Cnv-MMT, S&S-MT, S&S-AT, S&S-MMT or PHV-AT

HV-AT: Hybrid control system models

-

Park Signal Mismatch

P position signal malfunction

No or Yes

No: Signal normal

Yes: Signal malfunction (signals via CAN communication and direct line do not match)

Even when Yes is displayed, it is still possible to turn the power switch off (the power source mode will not be stuck in on (ACC) or on (IG)).

Str Lock/Unlock Wait T-Out

Steering lock or unlock malfunction

No or Yes

No: Lock and unlock normal

Yes: Lock or unlock malfunction (e.g. steering lock is stuck etc.)

When the hybrid control system cannot be started due to a steering lock or unlock malfunction, Yes is displayed.

Key Certif Wait T-Out

Key verification malfunction

No or Yes

No: Verification normal

Yes: Verification error (Detected due to the electrical key transmitter sub-assembly ID code and the ID code stored in the certification ECU (smart key ECU assembly) not matching)

When the hybrid control system cannot be started due to a key verification error, Yes is displayed.

IG Circuit

IG relay coil circuit malfunction

OK or NG

OK: Circuit normal

NG: Circuit malfunctioning
  • Use this item to determine if the IG relay is malfunctioning.
  • When the hybrid control system cannot be started due to an IG relay malfunction, NG is displayed.

IG Relay Monitor (Outside)

IG relay coil voltage monitor status

OFF or ON

OFF: Power switch off

ON: Power switch on (IG)
  • Use this item to determine if the IG relay is malfunctioning.
  • When the power switch is on (ACC), OFF is displayed.

IG Relay Monitor (Inside)

IG relay activation

OFF or ON

OFF: Power switch off

ON: Power switch on (IG)
  • Use this item to determine if the IG relay is malfunctioning.
  • When the power switch is on (ACC), OFF is displayed.

IGB Request

IGB signal output monitor status

OFF or ON

OFF: IGB signal not output

ON: IGB signal output
  • When the power switch is on (IG), ON is displayed.
  • Use this item to determine if an IGB signal malfunction exists.

Number of Diagnosis Code

Number of DTCs

0 to 255

-

-
To check if the Data List display changes, get into the vehicle while carrying an electrical key transmitter sub-assembly and perform the following operations with the power switch off and the shift lever in P.

HINT:

*1: Press the power switch with the brake pedal released and check that the power switch turns on (ACC).

*2: Press the power switch with the brake pedal released and check that the power switch turns on (IG).

*3: Depress the brake pedal (stop light switch assembly is on).

*4: Press the power switch with the brake pedal depressed and check that the hybrid control system starts.

*5: Press the power switch with the brake pedal depressed and check that the power switch turns off.

*6: Release the brake pedal.

*7: Open a door.

Body Electrical > Smart Key > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Unmatched Vehicle-ID

Key No. (incorrect or correct)

No or Yes

No: Communication normal

Yes: Communication malfunction

The vehicle ID registered in the vehicle and the vehicle ID registered in the electrical key transmitter sub-assembly are different (if a key from another vehicle is brought into the vehicle exterior detection area while the doors are locked, "Yes" is displayed for "Unmatched Vehicle-ID" in the Data List).

Other potential causes:

  • An electrical key transmitter sub-assembly from a different vehicle is being used.
  • A communication error due to wave interference.
  • The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.

No Response

Communication response

No or Yes

No: Communication normal

Yes: Communication malfunction

The vehicle IDs registered in the vehicle and electrical key transmitter sub-assembly match, but there is no response from the electrical key transmitter sub-assembly. (If the electrical key transmitter sub-assembly is not in the detection area or the transmitter battery is depleted resulting in a matching code not being detected when a lock switch or the power switch is pressed, etc., "Yes" is displayed for "No Response" in the Data List. If there is wave interference in the LF band that the vehicle uses for transmission or the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "No Response" in the Data List.)

Other potential causes:

  • An electrical key transmitter sub-assembly from a different vehicle is being used.
  • The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.

Key Low Battery

Transmitter battery depleted

No or Yes

No: Transmitter battery not depleted

Yes: Transmitter battery depleted

The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. "Yes" is displayed for the Data List item "Key Low Battery" when this voltage information indicates 2.2 V or less. This Data List item should be checked when the electrical key transmitter sub-assembly is at room temperature (example: at -20°C (-4°F), "Yes" may be displayed even if the transmitter battery is new).

# Codes

Number of DTCs

0 to 255

-

-

Immobilizer when IG=ON

Immobiliser function status when power switch on (IG)

UNSET or SET

UNSET: Immobiliser function not set with power switch on (IG) or immobiliser function unset 40 times after immobiliser function set

SET: Immobiliser function set (driver door opened and closed with power switch on (IG))

-

Immobiliser

Immobiliser system status determined by certification ECU (smart key ECU assembly)*8

Set or Unset

Set: Immobiliser set (hybrid control system start prohibited) (power switch off)

Unset: Immobiliser unset (hybrid control system start permitted) (power switch on (ACC) or on (IG))

The hybrid control system cannot be started when Set is displayed.

HINT:

  • The security indicator light blinks when Set is displayed.
  • The security indicator light is linked with set/unset of the immobiliser and not linked with lock/unlock of the steering.

Master Key

Matching of master key ID code and ID code registered in certification ECU (smart key ECU assembly)

NoMatch or Match

NoMatch: ID code of master key does not match ID code registered in certification ECU (smart key ECU assembly)

Match: ID code of master key matches ID code registered in certification ECU (smart key ECU assembly)

-

Sub Key

Matching of sub key ID code and ID code registered in certification ECU (smart key ECU assembly)

NoMatch or Match

NoMatch: ID code of sub key does not match ID code registered in certification ECU (smart key ECU assembly)

Match: ID code of sub key matches ID code registered in certification ECU (smart key ECU assembly)

-

BCC Malfunction

BCC signal status of transponder chip*1

OK or NG

OK: BCC signal normal

NG: BCC signal malfunction (malfunction in code computation in electrical key transmitter sub-assembly/certification ECU (smart key ECU assembly))

Problems may be caused by the following:

  • Communication errors due to wave interference (LF).
  • The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.

Abnormal Status

Transponder chip status signal*1

OK or NG

OK: Transponder chip status signal normal

NG: Transponder chip status signal malfunction (malfunction in code computation in electrical key transmitter sub-assembly/certification ECU (smart key ECU assembly))

Problems may be caused by the following:

  • An electrical key transmitter sub-assembly from a different vehicle is being used.
  • The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.

Different Encrypt Code

Matching of transponder chip code and certification ECU (smart key ECU assembly) code*1

OK or NG

OK: Codes of transponder chip and certification ECU (smart key ECU assembly) match

NG: Codes of transponder chip and certification ECU (smart key ECU assembly) do not match

Problems may be caused by the following:

  • An electrical key transmitter sub-assembly from a different vehicle is being used.
  • The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.

Different Serial Number

Vehicle serial number*1

OK or NG

OK: Signal from transponder chip and vehicle serial number stored in the certification ECU (smart key ECU assembly) match

NG: Signal from transponder chip and vehicle serial number stored in the certification ECU (smart key ECU assembly) do not match

Problems may be caused by the following:

  • An electrical key transmitter sub-assembly from a different vehicle is being used.
  • The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.

Frame Error

State of data sent from electrical key transmitter sub-assembly

OK or NG

OK: No problem with data sent from electrical key transmitter sub-assembly

NG: Problem with data sent from electrical key transmitter sub-assembly

Problems may be caused by the following:

  • Communication errors due to wave interference.
  • The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.

Response

Electrical key transmitter sub-assembly response to signal from certification ECU (smart key ECU assembly)

OK or NG

OK: Electrical key transmitter sub-assembly responds to signal from certification ECU (smart key ECU assembly)

NG: Electrical key transmitter sub-assembly does not respond to signal from certification ECU (smart key ECU assembly)

Problems may be caused by the following:

  • A key from a different vehicle is being used.
  • The electrical key transmitter sub-assembly, certification ECU (smart key ECU assembly) or power switch malfunctioning.

Wireless Starter Com ID

Certification between remote engine start ECU and certification ECU (smart key ECU assembly)

No Regd or Regd

No Regd: Certification between remote engine start ECU and certification ECU (smart key ECU assembly) not complete

Regd: Certification between remote engine start ECU and certification ECU (smart key ECU assembly) complete

-

Wireless C Code

Registration status between remote engine start ECU and certification ECU (smart key ECU assembly)

No Regd or Regd

No Regd: Remote starter ID not registered to remote engine start ECU and certification ECU (smart key ECU assembly)

Regd: Remote starter ID registered to remote engine start ECU and certification ECU (smart key ECU assembly)

Problems may be caused by the following:

  • DTC B2779 is stored.
  • Remote engine start ECU registration has not been performed.
  • Malfunctions in the certification ECU (smart key ECU assembly) or remote engine start ECU.

Steering Lock Sleep Cond

Steering lock ECU sleep availability

No or Yes

No: Sleep not available

Yes: Sleep available

-

Steering Lock Start Cond

Steering lock ECU wake up signal status

No or Yes

No: Wake up signal not sent

Yes: Wake up signal sent

-

Engine Start Condition

Status of hybrid control system start permission signal determined by steering lock ECU (steering lock actuator or upper bracket assembly) and sent to certification ECU (smart key ECU assembly)*2

NG or OK

NG: Hybrid control system start prohibited

OK: Hybrid control system start permitted
  • When OK is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator or upper bracket assembly) and makes hybrid control system starting possible.
  • The hybrid control system cannot be started when NG is displayed.

Sensor Value

History of malfunction of position sensor in steering lock ECU (steering lock actuator or upper bracket assembly) (DTC B2781 is stored)

OK or NG(Past)

OK: History of malfunction for the lock or unlock sensor in the steering lock ECU (steering lock actuator or upper bracket assembly) does not exist.

NG(Past): History of both the lock and unlock sensors in the steering lock ECU (steering lock actuator or upper bracket assembly) being on exists. (Under normal operation, neither sensor is on.)

When NG(Past) is displayed, either the position sensor in the steering lock ECU (steering lock actuator or upper bracket assembly) or the assembly itself may be malfunctioning.

Power Supply Short

History of signal error (short) sent from certification ECU (smart key ECU assembly) to steering lock ECU (steering lock actuator or upper bracket assembly) (DTC B2782 is stored)

OK or NG(Past)

OK: History of motor power source short does not exist

NG(Past): History of motor power source short exists

This item displays history of a malfunction in the circuit between the certification ECU (smart key ECU assembly) and the steering lock ECU (steering lock actuator or upper bracket assembly).

Motor Driver Short

History of malfunction (short) in steering lock ECU (steering lock actuator or upper bracket assembly) motor circuit (DTC B2781 is stored)

OK or NG(Past)

OK: History of short in the motor circuit does not exist

NG(Past): History of short in the motor circuit exists

This item displays history of a malfunction in the steering lock motor circuit in the steering lock ECU (steering lock actuator or upper bracket assembly).

Lock/Unlock Receive

History of receiving an unlock request signal

No or Yes

No: History of receiving an unlock request signal does not exist

Yes: History of receiving an unlock request signal exists

-

Lock Bar Stuck Error

History of steering not being able to unlock properly when steering lock operates for a certain period of time

OK or NG(Past)

OK: History of steering lock being stuck does not exist

NG(Past): History of steering lock being stuck exists

-

ID-BOX Sleep Condition

Certification ECU (smart key ECU assembly) sleep mode status*8

No or Yes

No: Certification ECU (smart key ECU assembly) sleep mode not possible

Yes: Certification ECU (smart key ECU assembly) sleep mode possible

-

ID-BOX Start Condition

Certification ECU (smart key ECU assembly) status*3

No or Yes

No: Wake-up signal not sent by certification ECU (smart key ECU assembly)

Yes: Wake-up signal sent by certification ECU (smart key ECU assembly)

-

Engine Start Request

Status of hybrid control system start permission signal determined by steering lock ECU (steering lock actuator or upper bracket assembly) and sent to certification ECU (smart key ECU assembly)*8

OK or NG

OK: Signal received

NG: Signal not received
  • When OK is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator or upper bracket assembly) and hybrid control system starting possible.
  • The hybrid control system cannot be started when NG is displayed.

3bit Code Request

3-bit code request condition

OK or NG

OK: 3-bit code request condition signal received

NG: 3-bit code request condition signal not received

-

L Code Check

Verification result between certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly)*5

OK or NG

OK: Verification result normal

NG: Verification result abnormal

When NG is displayed:

  • The ID code for the certification ECU (smart key ECU assembly) or steering lock ECU (steering lock actuator or upper bracket assembly) is not registered, or the certification ECU (smart key ECU assembly) or steering lock ECU (steering lock actuator or upper bracket assembly) is malfunctioning.
  • The steering cannot be locked.
  • The steering cannot be unlocked (the hybrid control system cannot be started).

Unlock Request Receive

Status of steering unlock command from certification ECU (smart key ECU assembly)*6,*8

OK or NG

OK: Certification ECU (smart key ECU assembly) sends steering unlock command (within 10 seconds of power switch turned on (ACC) or on (IG), or of hybrid control system start operation performed)

NG: Certification ECU (smart key ECU assembly) does not send steering unlock command (power switch not turned on (ACC) or on (IG), and hybrid control system start operation not performed)
  • The hybrid control system cannot be started when an unlock request signal cannot be received.
  • If OK is not displayed even though the steering unlock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.

Lock Request Receive

Status of steering lock command from certification ECU (smart key ECU assembly)*7,*8

OK or NG

OK: Certification ECU (smart key ECU assembly) sends steering lock command (within 10 seconds of any door opened with shift lever in P and power switch off)

NG: Certification ECU (smart key ECU assembly) does not send steering lock command (no door opened with shift lever in P and power switch off)

If OK is not displayed even though the steering lock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.

L Code Check(Past)

Verification result history between the certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly)

OK or NG(Past)

OK: History of abnormal verification result does not exist

NG(Past): History of abnormal verification result exists

-

Steering Lock

Steering lock ECU (steering lock actuator or upper bracket assembly) lock confirmation status

Unset or Set

Unset: Lock not confirmed

Set: Lock confirmed

When Unset is displayed, the steering is not locked.

Steering Unlock

Steering lock ECU (steering lock actuator or upper bracket assembly) unlock confirmation status

Unset or Set

Unset: Unlock not confirmed

Set: Unlock confirmed

When Unset is displayed, the steering is not unlocked (the hybrid control system cannot be started).

EFI Code Receive

Certification information sent to certification ECU (smart key ECU assembly) from hybrid vehicle control ECU when hybrid vehicle control ECU receives hybrid control system start permission signal from certification ECU (smart key ECU assembly)*4,*8

OK or NG

OK: Signal from hybrid vehicle control ECU to unset immobiliser received by certification ECU (smart key ECU assembly)

NG: Signal from hybrid vehicle control ECU to unset immobiliser not received by certification ECU (smart key ECU assembly)

-

EFI Communication

State of communication to unset immobiliser between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU

OK or NG

OK: Communication to unset immobiliser has started between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU

NG: Communication to unset immobiliser has not started between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU

If this item displays "NG" even though the conditions to unset the immobiliser have been met and the value of Data List item "Engine Start Request" is "OK", the hybrid vehicle control ECU may be malfunctioning. When the hybrid control system cannot be started, use this Data List item during troubleshooting.

R Code Check

Verification result between the DCM (telematics transceiver) and certification ECU (smart key ECU assembly)

OK or NG

OK: Verification result normal

NG: Verification result abnormal

-

B Code Difference

B code mismatch

No or Yes

No: Communication normal

Yes: Communication malfunction

-

B Code

B code registration status

No Regd or Regd

No Regd: B code not registered correctly

Regd: B code registered correctly

-

Vehicle ID (Key Registration)

Status of vehicle ID (key registration)

OK or NG

OK: Vehicle ID registered to key

NG: Vehicle ID not registered to key

-

Key Registration Status

Status of key registration

OK or NG

OK: Key registration was completed normally

NG: Key registration was not completed normally

-

S/L Code Registration Status

Status of L code registration

OK or NG

OK: L code registration was completed normally

NG: L code registration was not completed normally

-

Key Low Battery Warning

Low transmitter battery warning

OFF or ON

Customize setting displayed

-

Key Left in Vehicle Buz

Key left in vehicle buzzer

OFF or ON

Customize setting displayed

-

Engine Start Indicator

Key indicator display

OFF or ON

Customize setting displayed

-

Number of Registered Key Codes

Number of registered electrical key transmitter sub-assemblies

0 to 8

Number of registered electrical key transmitter sub-assemblies

Up to 7 electrical key transmitter sub-assemblies can be registered.

Open in IG2

History of IG2 input of the steering lock ECU (steering lock actuator or upper bracket assembly)

OK or NG(Past)

OK: History of open in IG2 terminal circuit exists

NG(Past): No history of open in IG2 terminal circuit exists

When OK is displayed, the steering lock ECU (steering lock actuator or upper bracket assembly) has an IG2 input circuit malfunction.

EFI Communication Code Status

Status of EFI communication code

OK or NG

OK: Signal from hybrid vehicle control ECU was correct

NG: Signal from hybrid vehicle control ECU was incorrect

-

EFI Communication Status

Status of EFI communication

OK or NG

OK: Communication normal between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU

NG: Communication malfunction between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU

-

EFI Communication Speed

Status of EFI communication speed

OK or NG

OK: Communication speed normal

NG: Communication speed abnormal

-

HINT:

  • *1: This indicates that there is a problem with the communication format between the electrical key transmitter sub-assembly and certification ECU (smart key ECU assembly). Wave interference, malfunction of the electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly), an electrical key transmitter sub-assembly from different vehicle being used, etc. are possible causes.
  • *2: Hybrid control system start is permitted when it is confirmed that the steering is unlocked and the steering lock function is not malfunctioning. If hybrid control system start is not permitted, a steering lock ECU (steering lock actuator or upper bracket assembly) malfunction (relay, driver, etc.), an IGE circuit malfunction (wire harness or connector, certification ECU (smart key ECU assembly)), or a steering lock sensor malfunction are possible causes.
  • *3: This indicates that transmission of the wake-up signal is possible ("Yes" indicates that the signal to begin verification-related LIN communication is being sent). When the steering lock motor is operating and an IGE ON signal is received (there is a steering lock operation request), or when communication is being performed between the certification ECU (smart key ECU assembly) and hybrid vehicle control ECU, the display changes to "Yes".
  • *4: This indicates that the hybrid control system start permission request signal (EGST) output from the hybrid vehicle control ECU is being received by the certification ECU (smart key ECU assembly).
  • *5: This indicates the certification result of the certification codes of the certification ECU (smart key ECU assembly) and steering lock ECU (steering lock actuator or upper bracket assembly).

    When the steering lock ECU (steering lock actuator or upper bracket assembly) receives an unlock request from the certification ECU (smart key ECU assembly), confirmation of the certification ECU (smart key ECU assembly) L code is performed. If the L code matches, the steering lock ECU (steering lock actuator or upper bracket assembly) unlocks the steering.

  • *6: The certification ECU (smart key ECU assembly) outputs a steering unlock request for 10 seconds after the power switch is turned on (ACC) or on (IG), or a hybrid vehicle control ECU start operation is performed.
  • *7: The certification ECU (smart key ECU assembly) outputs a steering lock request for 10 seconds after the power switch is turned off and any door is opened with the shift lever in P.
  • *8: Refer to the following Data List items when inspecting the actual vehicle.
To check if the Data List display changes, get into the vehicle while carrying an electrical key transmitter sub-assembly and perform the following operations with the power switch off and the shift lever in P.

  • *1: Press the power switch with the brake pedal released and check that the power switch turns on (ACC).
  • *2: Press the power switch with the brake pedal released and check that the power switch turns on (IG).
  • *3: Press the power switch with the brake pedal released and check that the power starts.
  • *4: Press the power switch and check that the power switch turns off.
  • *5: Open the driver side door and check that the steering locks.
  1. Unlock operation conditions for the steering lock:

    When the following condition is met, the unlock operation is performed.

    1. The power switch is on (ACC) or on (IG).
      1. When the power switch is turned on (ACC) or on (IG) and the key and certification ECU (smart key ECU assembly) are verified, the steering is unlocked.
    2. When any of the following conditions are met, key verification is performed.
      1. The brake pedal is depressed so that the hybrid control system can be started.
      2. 30 seconds have elapsed after opening and closing a door.
      3. The power switch is pressed.
  2. Lock operation conditions for the steering:

    When the following conditions are met and the certification ECU (smart key ECU assembly) has been verified, the lock operation is performed.

    1. The power switch is off.
    2. The shift lever is in P.
    3. A door is opened or a door lock operation (door lock, wireless door lock or key-linked lock) is performed.
Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Vehicle Speed Meter

Vehicle speed

Min.: 0, Max.: 255

Almost same as actual vehicle speed (Speedometer tester)

-
Body Electrical > Main Body > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

FL Door Courtesy SW

Front door LH courtesy light switch signal

OFF or ON

OFF: Front door LH closed

ON: Front door LH open

-

(f) Enter the following menus: Powertrain / Hybrid Control / Data List.

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

Powertrain > Hybrid Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Stop Light Switch

Brake pedal signal

OFF or ON

OFF: Brake pedal released

ON: Brake pedal depressed

-

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / (desired system) / Active Test.

(e) Perform Active Test according to the display on the Techstream.

Body Electrical > Smart Key > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Immobiliser Indicator

Security indicator light

OFF/ON

-
Body Electrical > Power Source Control > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

P Supply for Steering Lock

Certification ECU (smart key ECU assembly)

OFF/ON

HINT:

OFF: Power is not supplied.

ON: Power is supplied.

When performing this Active Test, make sure the following condition is met:

The power switch is on (IG).
    Customize Parameters

    Diagnostic Trouble Code Chart

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    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Hv Model): Freeze Frame Data
    FREEZE FRAME DATA DESCRIPTION (a) Whenever a lane departure alert system (w/ steering control) DTC is stored, the forward recognition camera stores the current vehicle state (ECU and sensor information) as Freeze Frame Data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn th ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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