Theft Deterrent System (W/ Entry And Start System) Terminals Of Ecu

Securities. Camry. Acv40 Gsv40
Theft Deterrent. Camry. Acv40 Gsv40

  1. CHECK MAIN BODY ECU (INSTRUMENT PANEL J/B)

  1. CHECK CERTIFICATION ECU ASSEMBLY (SMART KEY ECU ASSEMBLY)

Theft Deterrent System (W/ Entry And Start System) -- Terminals Of Ecu



CHECK MAIN BODY ECU (INSTRUMENT PANEL J/B)


  1. Disconnect the main body ECU (instrument panel J/B) connectors.


    Camry. Acv40 Gsv40.Theft Deterrent.Theft Deterrent System (W/ Entry And Start System).Theft Deterrent System (W/ Entry And Start System) Terminals Of Ecu

  2. Measure the resistance and voltage between each terminal of the wire harness side connectors and body ground.

    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E6-5 (RCTY) - Body ground
    		GR - Body ground
    		Rear courtesy light switch RH input
    		Rear door RH CLOSED (OFF) → OPEN (ON)
    		10 kΩ or higher → Below 1 Ω
    E6-21 (PCTY) - Body ground
    		Y - Body ground*1
    L - Body ground*2
    		Passenger side courtesy light switch input
    		Passenger side door CLOSED (OFF) → OPEN (ON)
    		10 kΩ or higher → Below 1 Ω
    E6-25 (LGCY) - Body ground
    		W - Body ground
    		Luggage compartment door courtesy light switch input
    		Luggage compartment door CLOSED (OFF) → OPEN (ON)
    		10 kΩ or higher → Below 1 Ω
    E7-24 (DCTY) - Body ground
    		L - Body ground*1
    Y - Body ground*2
    		Driver side door courtesy light switch input
    		Driver side door CLOSED (OFF) → OPEN (ON)
    		10 kΩ or higher → Below 1 Ω
    IA-1 (ACC) - Body ground
    		B - Body ground
    		Ignition power supply (ACC signal)
    		Engine switch on (ACC) → off
    		11 to 14 V → Below 1 V
    IA-1 (IG) - Body ground
    		B - Body ground
    		Ignition power supply (IG signal)
    		Engine switch on (IG) → off
    		11 to 14 V → Below 1 V
    IA-1 (BATB) - Body ground
    		B - Body ground
    		+B (power battery system) power supply
    		Always
    		11 to 14 V
    ID-16 (ALTB) - Body ground
    		W - Body ground
    		+B (power system alternator system) power supply
    		Always
    		11 to 14 V
    IF-10 (GND1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    IM-9 (GND2) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    IO-7 (LCTY) - Body ground
    		LG - Body ground
    		Rear courtesy light switch LH input
    		Rear door LH CLOSED (OFF) → OPEN (ON)
    		10 kΩ or higher → Below 1 Ω
    HINT:
    1. *1: for LHD
    2. *2: for RHD
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the main body ECU (instrument panel J/B) connectors.

  4. Measure the voltage between each terminal of the connectors and body ground.

    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E8-4 (HAZ) - Body ground
    		W - Body ground
    		Turn signal flasher relay signal
    		System is in alarm sounding state
    		Below 1 V
    ID-11 (HORN) - Body ground
    		B - Body ground
    		Vehicle horn drive
    		Vehicle horn is sounding
    (Theft deterrent system is in alarm sounding state)
    		Pulse generation
    (0 V ← → 12 V)
    If the result is not as specified, the ECU may have a malfunction.

CHECK CERTIFICATION ECU ASSEMBLY (SMART KEY ECU ASSEMBLY)


  1. Disconnect the E74 and E75 ECU connectors.


    Camry. Acv40 Gsv40.Theft Deterrent.Theft Deterrent System (W/ Entry And Start System).Theft Deterrent System (W/ Entry And Start System) Terminals Of Ecu

  2. Measure the voltage and resistance of the wire harness side connectors.

    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E74-1 (+B) - E74-17 (E)
    		W - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    E74-17 (E) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E75-24 (HSW) - Body ground
    		R - Body ground
    		Engine hood courtesy switch
    		Engine hood OPEN (OFF) → CLOSED (ON)
    		10 kΩ or higher → Below 1 Ω
    1. If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the E74 and E75 ECU connectors.

  4. Measure the voltage of the connectors.

    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E74-2 (IND) - Body ground
    		Y - Body ground
    		Security indicator output
    		Security indicator is on
    (It comes on only in arming preparation state or alarm sounding state. It flashes when immobiliser is operating.)
    		3 to 6 V
    E75-20 (SH) - Body ground
    		P - Body ground
    		Security horn drive
    		Security horn is sounding
    (Theft deterrent system is in alarm sounding state)
    		Pulse generation
    (0 V ← → 12 V)
    1. If the result is not as specified, the ECU may have a malfunction.