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Initializing Tire Pressure Monitor System

NOTE: Perform initialization AFTER the transmitter ID registration procedure (if registration is required).
NOTE: Perform initialization in the following cases:
  • After replacement of the tire pressure warning ECU.
  • After replacement of a tire pressure sensor.
  • Specified tire pressure changes.
  • Changing the standard tire inflation pressure value due to trailer towing.
NOTE: Initialization is NOT required if re-inflating tires to the specified tire pressure.
  1. Set the tire pressure of all wheels (including spare tire) to pressure specified on the tire and loading information label.
    NOTE: Perform the tire pressure adjustment after the vehicle has sufficiently cooled down. If the vehicle is not sufficiently cooled down, increase the air pressure by 3-4 psi (20-30 kPa) in addition to the specified value.
  2. With the vehicle stopped and parking brake applied, turn the ignition switch to the ON (IG) position.
  3. Press and hold the tire pressure warning reset switch until the tire pressure warning light blinks 3 times at one-second intervals. See Fig 1
  4. Turn the ignition switch off.
  5. Connect the Techstream to the DLC3. Turn the ignition switch ON (IG) and turn the Techstream ON.
  6. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
  7. Confirm that the correct tire pressure data of all tires is displayed on the Techstream screen.
NOTE: If the initialization has not been completed successfully, DTC C2177/77 is stored after a vehicle speed of 5 mph (8 km/h) or more continues for 20 minutes or more.
NOTE: Initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3. See Fig 2.
Fig 1: Locating TPM System Reset Switch
G00492746Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying Data Link Connector Terminals
G00458801Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002