Theft Deterrent System (For Sedan) Terminals Of Ecu

Vehicle Interior. Yaris. Ncp93, 131
Theft Deterrent Keyless Entry. Yaris. Ncp93, 131

  1. CHECK THEFT WARNING ECU ASSEMBLY (THEFT DETERRENT ECU)

Theft Deterrent System (For Sedan) -- Terminals Of Ecu



CHECK THEFT WARNING ECU ASSEMBLY (THEFT DETERRENT ECU)

Yaris. Ncp93, 131.Theft Deterrent Keyless Entry.Engine Immobiliser System (For Sedan).Theft Deterrent System (For Sedan) Terminals Of Ecu

  1. Disconnect the D26 ECU connector.

  2. Check the voltage or resistance of each terminal of the wire harness side connector.

    Standard:
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    +B1 (D26-11) - Body ground
    		B - Body ground
    		Battery
    		Always
    		11 to 14 V
    +B2 (D26-13) - Body ground
    		BR - Body ground
    		Battery
    		Always
    		11 to 14 V
    IG (D26-9) - E (D26-16)
    		GR - W-B
    		Ignition switch signal
    		Ignition switch OFF → ON
    		Below 1 V → 11 to 14 V
    LUG (D26-6) - Body ground
    		P - Body ground
    		Luggage compartment door unlock detection switch signal
    		Luggage compartment door LOCK → UNLOCK
    		10 kΩ or higher → Below 1 Ω
    E (D26-16) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the D26 ECU connector.

  4. Check the voltages of each terminal of the connector.

    Standard voltage:
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BRK+ (D26-24) - Body ground
    		P - Body ground
    		Alarm BERKES Communication
    		Theft deterrent system is in alarm sounding state.
    		Pulse generation
    (1.5 V ← → Below 1.2 V)
    BRK- (D26-25) - Body ground
    		BE - Body ground
    		Alarm BERKES Communication
    		All doors are locked using key (Theft deterrent system is in arming preparation state).
    		Pulse generation
    (1.5 V ← → Below 1.2 V)
    SH- (D26-15) - Body ground
    		BE - Body ground
    		Security horn
    		Security horn is sounding (Theft deterrent system is in alarm sounding state).
    		Pulse generation
    (11 to 14 V ← → Below 1 V)
    +B1 (D26-11) - E (D26-16)
    		B - W-B
    		+B power supply
    		Always
    		11 to 14 V
    KSW (D26-7) - E (D26-16)
    		Y - W-B
    		Key unlock warning switch input
    		Key unlock warning switch ON (Key inserted) → OFF (Key removed from ignition key cylinder)
    		Below 1 V → 11 to 14 V
    IND (D26-29) - E (D26-16)
    		G - W-B
    		Security indicator
    		Security indicator lights up (illuminates for 30 seconds in alarm sounding state, flashes when immobiliser system is operating).
    		5 V or more
    DSWH (D26-4) - E (D26-16)
    		W - W-B
    		Engine hood courtesy switch input
    		Engine hood courtesy switch OFF (Closed) → ON (Open)
    		11 to 14 V → Below 1 V
    If the result is not as specified, the theft warning ECU assembly may be malfunctioning.