Toyota CH-R Service Manual: System Description

SYSTEM DESCRIPTION

OUTLINE OF THEFT DETERRENT SYSTEM

  • The theft deterrent system can be set by locking the doors using any of the following operations:
    • Entry lock operation*1
    • Wireless lock operation
    • *1: w/ Smart Key System
  • In the armed state, the alarm function will be activated if one of the following conditions is met:
    • Any of the doors is unlocked.
    • Any of the doors or the hood is opened.
  • In the alarm sounding state, the system blinks the turn signal lights. At the same time, the system sounds the vehicle horns and security horn assembly to deter break-in and theft as well as to warn people around the vehicle.
  • The theft deterrent system can be canceled by unlocking the doors using any of the following operations:
    • Entry lock operation*1
    • Wireless lock operation
    • Key linked lock operation*2
    • *1: w/ Smart Key System
    • *2: This function is set through the customize function.

      Click here

  • The theft deterrent system has an active arming mode. There are 4 states in this mode; a disarmed state, an arming preparation state, an armed state and an alarm sounding state.

(a) Disarmed state:

  • The alarm function is not operating.
  • The theft deterrent system is not operating.

(b) Arming preparation state:

  • The time until the system goes into the armed state.
  • The theft deterrent system is not operating.

(c) Armed state:

  • The theft deterrent system is operating.

(d) Alarm sounding state:

  • The alarm function is operating.

Alarm time:

Approximately 27.5 seconds

Alarm Methods

Alarm Method

Turn Signal Lights

Blinking

Vehicle Horns

Sounding

(Approximately 0.4-second cycles)

Security Horn Assembly

Sounding

(Approximately 0.4-second cycles)

FUNCTION OF MAIN COMPONENTS

Component

Function

Security indicator light

Informs driver of theft deterrent system status.

Security horn assembly

Sounds when attempted break-in or theft is detected.

Turn signal lights

Blink when attempted break-in or theft is detected.

Vehicle horns

Sound when attempted break-in or theft is detected.

  • Front door courtesy light switch assembly (for LH/RH)
  • Rear door courtesy light switch assembly (for LH/RH)
  • Back door courtesy light switch

Detects door status (open or closed).

Door unlock detection switch

Detects door status (locked or unlocked).

Hood courtesy switch (Hood lock assembly)

Detects hood status (open or closed).

Certification ECU (Smart key ECU assembly)*1

  • Receives wireless door lock/unlock signal.
  • Receives entry door lock/unlock signal.

Main body ECU (multiplex network body ECU)*2

Receives wireless door lock/unlock signal.

  • *1: w/ Smart Key System
  • *2: w/o Smart Key System

ACTIVE ARMING MODE

(a) Active arming mode:

This system operates as described in the diagram below when one of the items for each condition is met.

HINT:

The term "all doors" used in this section refers to the driver door, front passenger door, rear door LH, rear door RH and back door.

w/ Smart Key System

Condition

Item

Condition [1]

In disarmed state 1, when the engine switch is turned off, the system state is changed if the following condition is met:

  • With all doors and the hood closed, all doors are locked by wireless operation, the smart key system.

Condition [2]

  • Approximately 30 seconds elapse.

Condition [3]

  • All doors are unlocked by wireless operation, the smart key system or key linked power door lock operation.
  • Any door is unlocked.
  • Any door is opened.
  • The engine switch is pushed.
  • The engine switch is turned on (ACC) or on (IG).
  • The battery is reconnected.

Condition [4]

  • The hood is opened when it was closed.
  • The battery is reconnected while the any door or hood is open or any door is unlocked.
  • Any door is opened when all doors are closed.
  • Any door is unlocked when all doors are locked.
  • When 5 seconds or more have elapsed since the engine switch is pressed, the power source mode is changed from off to on (IG) without pressing the engine switch.
  • The hood is open.
  • Any door is opened.
  • The power source mode is on (IG).

Condition [5]

  • The engine switch is turned on (IG) and the engine is running at 550 rpm for 2 seconds or more.
  • All doors are unlocked by wireless operation, the smart key system or key linked power door lock operation.

Condition [6]

  • After approximately 27.5 seconds, the alarm stops and the system returns to the armed state.

Condition [7]

  • The engine hood is closed when it was open.

Condition [8]

  • Any door is unlocked when all doors are locked.
  • Any door is opened.
  • The engine switch is pushed.
  • The engine switch is turned on (ACC) or on (IG).
  • The battery is reconnected.
  • All doors are unlocked by wireless operation, the smart key system or key linked power door lock operation.

Condition [9]

In disarmed state 1, when the engine switch is turned off, the system state is changed if the following condition is met:

  • With all doors closed and the engine hood open, all doors are locked by wireless operation, the smart key system or key linked power door lock operation.

Condition [10]

  • The hood is opened.
w/o Smart Key System

Condition

Item

Condition [1]

In disarmed state 1, when the ignition switch is off, the system state is changed if the following condition is met when the key is not in the key cylinder:

  • With all doors and the hood closed, all doors are locked by wireless operation.

Condition [2]

  • Approximately 30 seconds elapse.

Condition [3]

  • All doors are unlocked by wireless operation or key linked power door lock operation.
  • Any door is unlocked.
  • Any door is opened.
  • Key is in the key cylinder.
  • The ignition switch is turned to ACC or ON.
  • The battery is reconnected.

Condition [4]

  • The hood is opened when it was closed.
  • The battery is reconnected while the hood is open or any door is unlocked.
  • Any door is opened when all doors are closed.
  • Any door is unlocked when all doors are locked.
  • The ignition switch is ON when the key is not in the key cylinder.
  • The hood is open.
  • Any door is opened.

Condition [5]

  • The engine switch is turned on (IG) and the engine is running at 550 rpm for 2 seconds or more.
  • All doors are unlocked by wireless operation or key linked power door lock operation.

Condition [6]

  • After approximately 27.5 seconds, the alarm stops and 5 seconds later the system returns to the armed state.

Condition [7]

  • The hood is closed when it was open.

Condition [8]

  • Any door is unlocked when all doors are locked.
  • Any door is opened.
  • Key is in the key cylinder.
  • The ignition switch is turned to ACC or ON.
  • The battery is reconnected.
  • All doors are unlocked by wireless operation or key linked power door lock operation.

Condition [9]

In disarmed state 1, when the ignition switch is off, the system state is changed if the following condition is met when the key is not in the key cylinder:

  • With all doors closed and the hood open, all doors are locked by wireless operation.

Condition [10]

  • The hood is opened.

FORCED DOOR LOCK CONTROL

(a) The forced door lock control prevents the vehicle from being tampered with. Immediately after a door is unlocked (armed state), all doors are forced to lock by a forced door lock signal.

(1) If the following conditions are met, the forced door lock control is operated.

  • The theft deterrent system is in the armed state.
  • Any door is unlocked.

SECURITY INDICATOR LIGHT OUTPUT

(a) According to the state of the theft deterrent system, the main body ECU (multiplex network body ECU) outputs a signal to turn the security indicator light on. However, some of the actual lighting conditions of the security indicator light are different from the output signals of the main body ECU (multiplex network body ECU).

Output

State of Theft Deterrent System

Security Indicator Light

Output Signal from Main Body ECU (Multiplex Network Body ECU)

Actual Lighting Condition

Disarmed state (1), (2)

Off

  • Off (Immobiliser system unset)
  • Blinking (Immobiliser system set)

Arming preparation state

On

On

Armed state

Off

Blinking

Alarm sounding state

On

On

Blinking Cycle

Time

Security Indicator Light

0.125 sec.

On

1.875 sec.

Off

HINT:

When the immobiliser system is set, the security indicator light blinks during both the disarmed state and the armed state due to output signals from the immobiliser system.

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