Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Operation Check

OPERATION CHECK

1. CHECK SMART KEY SYSTEM (for Entry Function) OPERATION

NOTICE:

Make sure that the smart key system (for Entry Function) has not been canceled before performing this inspection.

(a) Check the entry unlock function (driver door).

(1) Perform a wireless lock operation to lock the door, touch the unlock sensor built into the backside of the front door outside handle assembly LH while carrying the electrical key transmitter sub-assembly and check that the door unlocks.

HINT:

To perform a wireless lock operation, press the lock button of the electrical key transmitter sub-assembly while standing near the front door outside handle assembly LH.

(2) Inspect the entry unlock detection area. Hold the electrical key transmitter sub-assembly at the same height as the front door outside handle assembly LH and approximately 0.7 m (2.30 ft.) from the vehicle as shown in the illustration and check that the LED (red) of the electrical key transmitter sub-assembly blinks.

Text in Illustration

*a

0.7 to 1 m (2.30 to 3.28 ft.)

(3) With the system in unlock standby mode, grasp the front door outside handle assembly LH and check that the door unlocks.

HINT:

  • The system is in unlock standby mode when the electrical key transmitter sub-assembly is in the detection area and the key ID code sent by the electrical key transmitter sub-assembly matches the key ID code stored by the certification ECU (smart key ECU assembly).
  • Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the front door outside handle assembly LH.

(4) Check the unlock response sensitivity. With the system in unlock standby mode, touch the area shown in the illustration and check that the door unlocks.

NOTICE:

NOTICE:

If the sensor is touched too quickly or released too slowly, the sensor may not react and the door will not unlock.

Text in Illustration

*a

Unlock Sensor (Backside)

(b) Check the entry lock function (driver door).

NOTICE:

If the electrical key transmitter sub-assembly is in the vehicle but outside the detection area (on the instrument panel, in the glove box, on the floor) and a door lock operation is performed, the key lock-in prevention function will not operate and the electrical key transmitter sub-assembly will be locked inside the vehicle.

(1) With the door closed and unlocked, touch the lock sensor of the front door outside handle assembly LH while carrying the electrical key transmitter sub-assembly and check that the door locks.

Text in Illustration

*a

Lock Sensor

(2) Inspect the entry lock operating range. Hold the electrical key transmitter sub-assembly approximately 0.1 m (0.328 ft.) below the bottom edge of the door glass and approximately 0.3 m (0.984 ft.) from the vehicle as shown in the illustration, touch the lock sensor and check that the door locks.

Text in Illustration

*a

Approximately 0.3 m (0.984 ft.)

HINT:

  • As communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the front door outside handle assembly LH, the door may not lock if the lock sensor is touched with the same hand that is carrying the electrical key transmitter sub-assembly, etc.
  • If the key lock-in prevention function buzzer sounds, electric waves from the indoor electrical key antenna may be leaking from the vehicle.
  • The door lock operation cannot be performed more than 3 times consecutively.

(c) Check the push start function.

(1) With the engine switch off, move the shift lever to P, depress the brake pedal while carrying the electrical key transmitter sub-assembly. Then, press the engine switch and check that the engine starts.

(2) With the brake pedal released and the engine switch off, press the engine switch while carrying the electrical key transmitter sub-assembly and check that the power source mode changes as follows: off → on (ACC) → on (IG) → off.

(3) Stop the vehicle, press the engine switch and check that the power source mode changes to off (the engine stops and all electrical systems are off).

(4) Inspect the push start operating range (front). Place the electrical key transmitter sub-assembly on the front seat at either inspection point so that it is facing in the direction shown in the illustration and check that the engine can be started.

Text in Illustration

*a

Inspection Point

NOTICE:

  • Even if the electrical key transmitter sub-assembly is within the vehicle interior detection area, the electrical key transmitter sub-assembly may not be properly detected if it is on the instrument panel, in the glove box or on the floor.
  • Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the shift lever.

HINT:

Perform the inspection for both inspection points.

(5) Inspect the push start operating range (rear). Place the electrical key transmitter sub-assembly on the rear seat at either inspection point so that it is facing in the direction shown in the illustration and check that the engine can be started.

Text in Illustration

*a

Inspection Point

NOTICE:

  • Even if the electrical key transmitter sub-assembly is within the vehicle interior detection area, the electrical key transmitter sub-assembly may not be properly detected if it is on the instrument panel, in the glove box or on the floor.
  • Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the center of the rear seat cushion.

HINT:

Perform the inspection for both inspection points.

(d) Check the key lock-in prevention function (vehicle interior).

NOTICE:

In order to prevent the electrical key transmitter sub-assembly from being locked inside the vehicle, perform this inspection with the window of a door open.

(1) Turn the engine switch off.

(2) Place the electrical key transmitter sub-assembly on a front or rear seat.

(3) Close the door, making sure the doors are unlocked.

(4) Touch a door lock sensor and check that the doors do not lock and the key lock-in prevention function buzzer (external) sounds for approximately 5 seconds.

(e) Check transmitter battery saving function

(1) Press the unlock button of the electrical key transmitter sub-assembly twice while pressing the lock button and check that the electrical key transmitter sub-assembly LED blinks 4 times and enters transmitter battery saving mode.

(2) Check that the smart key system (for Entry Function) does not operate while in transmitter battery saving mode.

HINT:

To cancel transmitter battery saving mode, press a button of the electrical key transmitter sub-assembly.

(f) Check the entry cancel function.

(1) Cancel the smart key system and check that all the functions of the smart key system (for Entry Function) no longer operate.

HINT:

  • Refer to the following procedures to cancel the smart key system (for Entry Function) (See page While the smart key system is canceled, it is possible to lock and unlock ).
  • While the smart key system is canceled, it is possible to lock and unlock the doors with the wireless operation, and the start system can be operated by holding the electrical key transmitter sub-assembly near the engine switch.

(2) While the key cancel function (entry cancel function) is on, check that all functions of the smart key system cannot be operated.

(g) Check the answer-back function (hazard warning light flashing and buzzer sounding).

Entry Operation

Wireless Buzzer

Hazard Warning Light

Entry Door Lock

Sounds once

Flashes once

Entry Door Unlock

Sounds twice

Flashes twice

2. KEY DIAGNOSTIC MODE (Using Techstream)

HINT:

  • With key diagnostic mode, it is possible to check if the electrical key transmitter sub-assembly is operating properly with the selected electrical key antenna and within the selected detection area by the sounding of the wireless buzzer.
  • If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.

(a) Enter the following menus: Body Electrical / Smart Key / Utility / Communication Check (Key Diag Mode).

(b) Inspect the appropriate item according to the following table.

Tester Display

Inspection Item

[CH1/CH2] Overhead + Driver Side*1

Front door outside handle assembly LH (electrical key antenna)

[CH1] Overhead + Driver Side*1

[CH2] Overhead + Driver Side*1

[CH1/CH2] Overhead + Front Room*2

No. 1 indoor electrical key antenna assembly (front floor)

[CH1] Overhead + Front Room*2

[CH2] Overhead + Front Room*2

[CH1/CH2] Overhead + Rear Room*3

No. 2 indoor electrical key antenna assembly (rear floor)

[CH1] Overhead + Rear Room*3

[CH2] Overhead + Rear Room*3

[CH1/CH2] Immobiliser Amp*4

Amplifier (engine switch)

[CH1] Immobiliser Amp*4

[CH2] Immobiliser Amp*4

  • [CH1]: Channel 1 is set.
  • [CH2]: Channel 2 is set.
  • [CH1/CH2]: Channel 1 and 2 switches automatically at a specific interval*.
    • *: If the electrical key transmitter sub-assembly is detected with either channel 1 or 2, the buzzer sounds.

(c) Bring the electrical key transmitter sub-assembly near the selected electrical key antenna and check that the wireless door lock buzzer sounds.

HINT:

The buzzer sounds in short, repeated beeps for all items except "Overhead + Rear Room"*4. For "Overhead + Rear Room"*4, the buzzer sounds in one long, continuous beep.

(1) *1: Front door outside handle assembly LH

Text in Illustration

*a

Approximately 0.3 m (0.984 ft.)

HINT:

Hold the electrical key transmitter sub-assembly at the same height as the front door outside handle assembly LH in the position shown in the illustration.

(d) *2: No. 1 indoor electrical key antenna assembly (front floor)

Text in Illustration

*a

Inspection Point

HINT:

Place the electrical key transmitter sub-assembly on the front seat cushion of the driver seat or front passenger seat.

(e) *3: No. 2 indoor electrical key antenna assembly (rear floor)

Text in Illustration

*a

Inspection Point

HINT:

Place the electrical key transmitter sub-assembly on the rear seat cushion.

(f) *4: Amplifier (engine switch)

Text in Illustration

*1

Engine Switch

*2

Electrical Key Transmitter Sub-assembly

HINT:

While facing the logo side of the electrical transmitter sub-assembly towards the engine switch, hold the transmitter near the engine switch.

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