Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AW8E
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 -           ]
Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): INITIALIZATION; 2019 - 2022 MY Avalon HV [04/2018 -        ]

INITIALIZATION

NOTICE:

  • Initialization can be confirmed through the tire pressure warning light.
  • If the power switch is turned off during initialization, the tire pressure warning ECU and receiver memorizes that initialization was being performed. Therefore, it is not necessary to perform the initialization procedure again after turning the power switch on (IG).
  • The order in which the data is received is random.
  • If the signals from all the tire pressure warning valve and transmitters are received, initialization is completed.
  • Initialization is completed when the Data List "ID Tire Inflation Pressure" display shows the correct pressures.

    Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): DATA LIST / ACTIVE TEST

  • Initialization is normally completed within a few minutes.

    However, it may take 10 minutes or more until the tire pressure of the tire inflation pressure display function is shown (Tire Inflation Pressure Display Function).

  • It may take a few minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121 to C2124.

    Click here 2019 MY Avalon HV [04/2018 - 08/2019]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): C2121-C2124,C2181-C2184; Transmitter ID 1 not Received (Main) 2020 - 2022 MY Avalon HV [08/2019 -        ]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM (for HV Model): C2121-C2124,C2181-C2184; Transmitter ID 1 not Received (Main)

  • If initialization has not been completed successfully, DTC C2177 is stored after a vehicle speed of 40 km/h (25 mph) or more is detected for 20 minutes or more.
  • During test mode (sensor check mode), the system will not change to initialization mode even if the initialization procedure is performed.
  • If initialization is performed, the existing tire positions will be cleared, but will be automatically identified when the vehicle is driven at 40 km/h (25 mph) or more for 10 to 30 minutes (Tire Inflation Pressure Display Function).
  • If the Data List is displayed for 10 minutes or more using the Techstream during initialization, initialization will not complete and the tire pressure warning ECU and receiver will store DTC C2177.

BEFORE INITIALIZATION

(a) Set the tire pressure to the specified value.

NOTICE:

Refer to the link as the procedure for adjusting the tire pressures differs depending on the temperature of the tires.

Click here 2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; TIRE / WHEEL: TIRE AND WHEEL SYSTEM: INSPECTION 2021 - 2022 MY Avalon Avalon HV [08/2020 -        ]; TIRE / WHEEL: TIRE AND WHEEL SYSTEM: INSPECTION

HINT:

The tire pressure warning system illuminates the tire pressure warning light to warn the driver when any of the following condition is met:

  • The tire pressure drops to approximately 75% or less of the tire pressure set when system initialization was performed using the steering pad switch assembly.

INITIALIZATION PROCEDURE

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

(b) Select "Set Pressure" on the multi-information display and press and hold the "OK" switch (steering pad switch assembly) until the tire pressure warning light blinks 3 times.

*1

Tire Pressure Warning Light

*2

"OK" Switch (Steering Pad Switch Assembly)

*a

Tire Pressure Warning Light Output Pattern

*b

1 sec.

*c

ON

*d

OFF

(c) Turn the power switch off.

(d) Connect the Techstream to the DLC3.

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

(f) Turn the Techstream on.

(g) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

Chassis > Tire Pressure Monitor > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

ID 1 Tire Inflation Pressure

ID1 tire inflation pressure

min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

Actual tire inflation pressure

If N/A is displayed, data has not been received.*1

ID 2 Tire Inflation Pressure

ID2 tire inflation pressure

min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

Actual tire inflation pressure

If N/A is displayed, data has not been received.*1

ID 3 Tire Inflation Pressure

ID3 tire inflation pressure

min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

Actual tire inflation pressure

If N/A is displayed, data has not been received.*1

ID 4 Tire Inflation Pressure

ID4 tire inflation pressure

min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

Actual tire inflation pressure

If N/A is displayed, data has not been received.*1

HINT:

  • *1: It may take a few minutes until the values are displayed.
  • The wheel position cannot be determined from ID1 through ID4 on the Data List.

(h) Check that initialization has been completed.

(i) Confirm that the tire pressure data of all tires is displayed on the Techstream screen.