Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Initialization

INITIALIZATION

1. ZERO POINT CALIBRATION

NOTICE:

Make sure that the front passenger seat is not occupied before performing the operation.

HINT:

Perform the zero point calibration and sensitivity check if any of the following conditions apply.

  • The occupant detection ECU is replaced.
  • Accessories (seatback tray and seat cover, etc.) are installed.
  • The front passenger seat is removed from the vehicle.
  • The passenger airbag ON/OFF indicator (OFF) comes on when the front passenger seat is not occupied.
  • An occupant classification sensor collision detection DTC is output due to an accident or a collision.

(a) Zero point calibration and sensitivity check procedures

HINT:

Make sure that the zero point calibration has finished normally, and then perform the sensitivity check.

(1) Adjust the seat position in accordance with the table below.

Adjustment Item

Position

Slide Direction

Rearmost position

Reclining Angle

Upright position

Headrest Height

Lowest position

Lifter Height

Lowest position

(2) Connect the Techstream to the DLC3.

(3) Turn the ignition switch to the ON position.

(4) Perform the zero point calibration by following the prompts on the Techstream screen.

HINT:

Refer to the Techstream operator's manual for further details.

OK:

"Zero Point Calibration is complete." is displayed.

(5) Perform the sensitivity check by following the prompts on the Techstream screen.

(6) Confirm that the beginning sensor reading is within the standard range.

Standard range:

-3.2 to 3.2 kg (-7 to 7 lb)

(7) Place a 30 kg (66.1 lb) weight onto the front passenger seat.

NOTICE:

  • Do not allow the weight to come into contact with the seatback when placing it on the seat cushion.
  • Place the weight in the area shown in the illustration.
Text in Illustration

*1

Weight Position

(8) Confirm that the sensitivity is within the standard range.

Standard range:

27 to 33 kg (59.52 to 72.75 lb)

HINT:

  • When performing the sensitivity check, use a solid metal weight (the check result may not be accurate if a liquid weight is used).
  • If the sensitivity deviates from the standard range, retighten the bolts of the front passenger seat taking care not to deform the seat rail. After performing this procedure, if the sensitivity is not within the standard range, replace the front seat with adjuster frame assembly RH.
  • If the zero point calibration has not finished normally, replace the front seat with adjuster frame assembly RH.
How To Proceed With Troubleshooting
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS ...

System Description
SYSTEM DESCRIPTION 1. FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (a) General Description (1) The front passenger occupant detection ECU determines whether the front passenger seat is occupied ...

Other materials:

Lost Communication With Image Processing Module "A" (U023A)
DESCRIPTION The millimeter wave radar sensor assembly communicates with the forward recognition camera via CAN communication. If there is a communication error with the forward recognition camera, the millimeter wave radar sensor assembly stores DTC U023A. DTC No. Detecti ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION BLOCK (a) Disconnect the main body ECU (multiplex network body ECU) connectors. Text in Illustration *1 Main Body ECU (Multiplex Network Body ECU) - - ...

Auto Up Operation does not Fully Close Power Window (Jam Protection Function is Activated)
DESCRIPTION If a door glass or a power window regulator motor assembly does not operate smoothly, the jam protection function may be triggered automatically, resulting in the auto up function being unable to fully close the window. HINT: This symptom may occur for any of the windows. CAUTION ...

В© 2011-2025 Copyright www.ttguide.net