Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Heating Air Conditioning. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Rear Heater)

  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/o Rear Heater)

  1. CHECK AIR CONDITIONING CONTROL ASSEMBLY (w/o Navigation System [w/o Entry and Start System])

  1. CHECK AIR CONDITIONING CONTROL ASSEMBLY (w/o Navigation System [w/ Entry and Start System])

  1. CHECK NO. 2 AIR CONDITIONING CONTROL ASSEMBLY (w/ Rear Heater)

  1. MULTI-DISPLAY ASSEMBLY (w/ Navigation System)

  1. MULTI-MEDIA MODULE RECEIVER ASSEMBLY (w/ Navigation System)

Air Conditioning System (For Automatic Air Conditioning System) -- Terminals Of Ecu



CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Rear Heater)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  1. Disconnect the E36 and E35 air conditioning amplifier assembly connectors.

  2. Measure the voltage and resistance according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E35-6 (E1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E35-17 (RHTR) - E35-31 (SGND)
    		W - GR
    		Power supply for duct sensor RH
    1. Ignition switch ON
    2. Passenger side duct sensor temperature: 25°C (77°F)
    		4850 to 5150 Ω
    E35-18 (RHTL) - E35-31 (SGND)
    		V - GR
    		Power supply for duct sensor LH
    1. Ignition switch ON
    2. Passenger side duct sensor temperature: 25°C (77°F)
    		4850 to 5150 Ω
    E36-1 (GND) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E36-5 (IG+) - E36-1 (GND)
    		G - BR
    		Ignition power supply
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V
    E36-6 (+B1) - E36-1 (GND)
    		LG - BR
    		Battery power supply
    		Always
    		11 to 14 V
    E36-7 (+B2) - E36-1 (GND)
    		LG - BR
    		Battery power supply
    		Always
    		11 to 14 V

  3. Reconnect the E36 and E35 air conditioning amplifier assembly connectors.

  4. Measure the voltage and resistance according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E35-1 (SG-1) - Body ground
    		B - Body ground
    		Ground for room temperature sensor (for front)
    		Always
    		Below 1 Ω
    E35-9 (PRE) - E35-32 (SG-2)
    		R - G
    		Air conditioning pressure sensor signal
    1. Ignition switch ON
    2. A/C switch off
    		0.63 to 4.78 V
    1. Engine idling
    2. A/C switch on
    3. Blower switch LO
    4. Refrigerant pressure is normal
    		0.63 to 4.78 V
    Refrigerant pressure: Abnormal (less than 177 kPa [1.8 kgf/cm2, 26 psi])
    		Below 0.63 V
    Refrigerant pressure: Abnormal (more than 3079 kPa [31.4 kgf/cm2, 446 psi])
    		4.78 V or higher
    E35-10 (TAM) - E35-32 (SG-2)
    		V - G
    		Ambient temperature sensor signal
    1. Ignition switch ON
    2. Ambient temperature: 25°C (77°F)
    		1.4 to 1.6 V
    1. Ignition switch ON
    2. Ambient temperature: 50°C (122°F)
    		0.7 to 0.9 V
    E35-11 (TEC) - E35-33 (SG)
    		W - P
    		Evaporator temperature sensor signal (for rear)
    1. Ignition switch ON
    2. Evaporator temperature: 15°C (59°F)
    		1.4 to 1.8 V
    E35-13 (S5-3) - E35-32 (SG-2)
    		LG - G
    		Power supply for air conditioner pressure
    		Ignition switch ON
    		4.75 to 5.25 V
    E35-16 (TR) - E35-1 (SG-1)
    		W - B
    		Room temperature sensor signal (for front)
    1. Ignition switch ON
    2. Front side interior temperature: 25°C (77°F)
    		1.9 to 2.1 V
    Room temperature sensor signal (for front)
    1. Ignition switch ON
    2. Front side interior temperature: 50°C (122°F)
    		1.0 to 2.0 V
    E35-21 (TR) - E35-33 (SG)
    		R - P
    		Room temperature sensor signal (for rear LH)
    1. Ignition switch ON
    2. Vehicle interior temperature: 25°C (77°F)
    		1.9 to 2.1 V
    1. Ignition switch ON
    2. Vehicle interior temperature: 50°C (122°F)
    		1.0 to 1.2 V
    E35-22 (TSET) - E35-33 (SG)
    		R - P
    		Room temperature sensor signal (for rear RH)
    1. Ignition switch ON
    2. Vehicle interior temperature: 25°C (77°F)
    		1.9 to 2.1 V
    1. Ignition switch ON
    2. Vehicle interior temperature: 50°C (122°F)
    		1.0 to 1.2 V
    E35-28 (SW 1) - Body ground*1
    		P - Body ground
    		Idle up switch operation signal
    1. Engine running
    2. A/C switch on
    3. Blower switch on (LO level)
    4. Idle up switch off → on
    		Below 1 V 14 V
    E35-29 (COOL) - Body ground*4
    		W - Body ground
    		Cool box operation signal
    1. Ignition switch ON
    2. Cool box switch on
    		Below 1 V
    1. Ignition switch ON
    2. Cool box switch off
    		11 to 14 V
    E35-30 (LOCK) - E35-32 (SG-2)
    		L - G
    		Compressor lock sensor signal
    1. Engine idling
    2. A/C switch on (magnet clutch on)
    3. Blower switch: LO
    		Pulse generation
    (see waveform 1)
    E35-31 (SGND) - Body ground
    		GR - Body ground
    		Ground for duct sensor RH
    		Always
    		Below 1 Ω
    E35-32 (SG-2) - Body ground
    		G - Body ground
    		Ground for pressure sensor, cooler compressor
    		Always
    		Below 1 Ω
    E35-33 (SG) - Body ground
    		P - Body ground
    		Ground for evaporator temperature sensor signal (for rear), rear room temperature sensor signal LH and RH
    		Always
    		Below 1 Ω
    E36-3 (BLW) - E36-1 (GND)
    		R - BR
    		Blower motor control signal
    1. Ignition switch ON
    2. Blower switch: LO
    		Pulse generation
    (see waveform 2)
    1. Ignition switch ON
    2. Blower switch: off
    		4.5 to 5.5 V
    E36-8 (PTC1) - Body ground*2
    		W - Body ground
    		Quick heater assembly operation signal
    1. Engine idling
    2. Set temperature: MAX HOT (HI)
    3. Engine coolant temperature: Below 65°C (149°F)
    4. Ambient temperature: Below 10°C (50°F)
    5. Blower switch: off → on (after 10 seconds)
    		11 to 14 V → Below 1 V
    E36-11 (AC1) - Body ground
    		L - Body ground
    		Compressor operation signal
    1. Engine idling
    2. Blower switch LO
    3. A/C switch off
    		11 to 14 V
    1. Engine idling
    2. Blower switch LO
    3. A/C switch on
    		Below 1 V
    E36-12 (RBUG) - Body ground
    		BR - Body ground
    		Ground for BUS IC (for rear)
    		Always
    		Below 1 Ω
    E36-13 (RBUS) - E36-12 (RBUG)
    		R - BR
    		BUS IC control signal (for rear)
    		Ignition switch ON
    		Pulse generation
    E36-14 (RBBU) - E36-12 (RBUG)
    		L - BR
    		Power supply for BUS IC (for rear)
    		Always
    		11 to 14 V
    E36-17 (BLWH) - E36-1 (GND)
    		L - BR
    		Blower motor control signal (for rear)
    1. Ignition switch ON
    2. Blower switch: LO
    		Pulse generation
    (see waveform 3)
    E36-18 (MGC) - E36-1 (GND)
    		R - BR
    		Magnet clutch operation signal
    1. Engine idling
    2. Blower switch: LO
    3. A/C switch on (magnet clutch on)
    		Below 1 V
    1. Engine idling
    2. Blower switch: LO
    3. A/C switch on or off (magnet clutch off)
    		11 to 14 V
    E36-19 (RMGV) - E36-1 (GND)
    		B - BR
    		Rear cooling unit expansion valve signal
    1. Ignition switch ON
    2. Blower switch LO
    3. A/C switch on
    		11 to 14 V
    E36-22 (ACT) - Body ground
    		G - Body ground
    		Compressor operation signal
    1. Engine idling
    2. A/C switch off or on (magnet clutch off)
    		Below 1 V
    1. Engine idling
    2. A/C switch on (magnet clutch on)
    		11 to 14 V
    E36-23 (ALT) - Body ground
    		R - Body ground
    		Generator assembly signal
    		Ignition switch ON
    		Pulse generation
    E36-24 (PTC3) - Body ground*2
    		R - Body ground
    		Quick heater assembly operation signal
    1. Engine idling
    2. Set temperature: MAX HOT (HI)
    3. Engine coolant temperature: Below 65°C (149°F)
    4. Ambient temperature: Below 10°C (50°F)
    5. Blower switch: off → on (after 20 seconds)
    		11 to 14 V → Below 1 V
    E36-26 (PTC2) - Body ground*2
    		B - Body ground
    		Quick heater assembly operation signal
    1. Engine idling
    2. Set temperature: MAX HOT (HI)
    3. Engine coolant temperature: Below 65°C (149°F)
    4. Ambient temperature: Below 10°C (50°F)
    5. Blower switch: off → on (after 30 seconds)
    		11 to 14 V → Below 1 V
    E36-27 (CFN+) - Body ground*3
    		R - Body ground
    		Condenser fan operation signal
    		Ignition switch ON
    		11 to 14 V
    E36-29 (ECOS) - Body ground*5
    		B - Body ground
    		Integration control and panel assembly (ECO mode switch) operation signal
    1. Ignition switch ON
    2. Integration control and panel assembly (ECO mode switch) on
    		Below 1 V
    1. Ignition switch ON
    2. Integration control and panel assembly (ECO mode switch) off
    		11 to 14 V
    E36-32 (MGCA) - Body ground*1
    		P - Body ground
    		Viscous with magnet clutch operation signal
    1. Engine idling
    2. Idle up switch on
    		Below 1 V
    z72-1 (BUS G) - Body ground
    		-
    		Ground for BUS IC (for front)
    		Always
    		Below 1 Ω
    z72-2 (BUS) - z72-1 (BUS G)
    		-
    		BUS IC control signal (for front)
    		Ignition switch ON
    		Pulse generation
    z72-3 (B BUS) - z72-1 (BUS G)
    		-
    		Power supply for BUS IC (for front)
    		Always
    		11 to 14 V
    z72-11 (TE) - z72-12 (SG)
    		-
    		Evaporator temperature sensor signal
    1. Ignition switch ON
    2. Evaporator temperature: 15°C (59°F)
    		1.0 to 1.2 V
    z72-12 (SG) - Body ground
    		-
    		Ground for evaporator temperature sensor
    		Always
    		Below 1 Ω
    1. *1: w/ Viscous Heater
    2. *2: w/ PTC Heater
    3. *3: w/ Condenser Fan
    4. *4: w/ Cool Box
    5. *5: w/ ECO Mode Switch


    5. Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  5. Using an oscilloscope, check waveform 1.

    HINT:
    When the engine speed is increased, the duty ratio changes accordingly.
    Item
    		Content
    Terminal No. (Symbol)
    		E35-30 (LOCK) - E35-32 (SG-2)
    Tool Setting
    		200 mV/DIV., 10 ms/DIV.
    Condition
    1. Engine idling
    2. A/C switch on (magnet clutch on)
    3. Blower switch: LO


    6. Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  6. Using an oscilloscope, check waveform 2.

    HINT:
    When the blower level is increased, the duty ratio changes accordingly.
    Item
    		Content
    Terminal No. (Symbol)
    		E36-3 (BLW) - E36-1 (GND)
    Tool Setting
    		1 V/DIV., 500 μs/DIV.
    Condition
    1. Ignition switch ON
    2. Blower switch: LO


    7. Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  7. Using an oscilloscope, check waveform 3.

    HINT:
    When the rear blower level is increased, the duty ratio changes accordingly.
    Item
    		Content
    Terminal No. (Symbol)
    		E36-17 (BLWH) - E36-1 (GND)
    Tool Setting
    		2 V/DIV., 500 μs/DIV.
    Condition
    1. Ignition switch ON
    2. Blower switch: LO

CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (w/o Rear Heater)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  1. Disconnect the E81 air conditioning amplifier assembly connector.

  2. Measure the voltage and resistance according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E81-1 (IG+) - E81-14 (GND)
    		G - BR
    		Ignition power supply
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V
    E81-14 (GND) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E81-21 (+B1) - E81-14 (GND)
    		LG - BR
    		Battery power supply
    		Always
    		11 to 14 V

  3. Reconnect the E81 air conditioning amplifier assembly connector.

  4. Measure the voltage, resistance and waveform according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E81-3 (PTC2) - Body ground*2
    		B - Body ground
    		Quick heater assembly operation signal
    1. Engine idling
    2. Set temperature: MAX HOT (HI)
    3. Engine coolant temperature: Below 65°C (149°F)
    4. Ambient temperature: Below 10°C (50°F)
    5. Blower switch: off → on (after 30 seconds)
    		11 to 14 V → Below 1 V
    E81-4 (SW 1) - Body ground*1
    		P - Body ground
    		Idle up switch operation signal
    1. Engine running
    2. A/C switch on
    3. Blower switch on (LO level)
    4. Idle up switch off → on
    		Below 1 V 14 V
    E81-5 (TAM) - E81-13 (SG-2)
    		V - G
    		Ambient temperature sensor signal
    1. Ignition switch ON
    2. Ambient temperature: 25°C (77°F)
    		1.4 to 1.6 V
    1. Ignition switch ON
    2. Ambient temperature: 50°C (122°F)
    		0.7 to 0.9 V
    E81-8 (LOCK) - E81-13 (SG-2)
    		L - G
    		Compressor lock sensor signal
    1. Engine idling
    2. A/C switch on (magnet clutch on)
    3. Blower switch: LO
    		Pulse generation
    (see waveform 1)
    E81-9 (PRE) - E81-13 (SG-2)
    		R - G
    		Air conditioning pressure sensor signal
    1. Ignition switch ON
    2. A/C switch off
    		0.63 to 4.78 V
    1. Engine idling
    2. A/C switch on
    3. Blower switch LO
    4. Refrigerant pressure is normal
    		0.63 to 4.78 V
    Refrigerant pressure: Abnormal (less than 177 kPa [1.8 kgf/cm2, 26 psi])
    		Below 0.63 V
    Refrigerant pressure: Abnormal (more than 3079 kPa [31.4 kgf/cm2, 446 psi])
    		4.78 V or higher
    E81-13 (SG-2) - Body ground
    		G - Body ground
    		Ground for pressure sensor, cooler compressor
    		Always
    		Below 1 Ω
    E81-17 (MGCA) - Body ground*1
    		P - Body ground
    		Viscous with magnet clutch operation signal
    1. Engine idling
    2. Idle up switch on
    		Below 1 V
    E81-18 (RCRL) - Body ground
    		B - Body ground
    		Rear cooler control relay operation signal
    1. Ignition switch ON
    2. Rear blower switch off
    		Below 1 V
    1. Ignition switch ON
    2. Rear blower switch LO
    		11 to 14 V
    E81-19 (CFN+) - Body ground*3
    		R - Body ground
    		Condenser fan operation signal
    		Ignition switch ON
    		11 to 14 V
    E81-20 (MGC) - E81-14 (GND)
    		R - BR
    		Magnet clutch operation signal
    1. Engine idling
    2. Blower switch: LO
    3. A/C switch on (magnet clutch on)
    		Below 1 V
    1. Engine idling
    2. Blower switch: LO
    3. A/C switch on or off (magnet clutch off)
    		11 to 14 V
    E81-22 (BLW) - E81-14 (GND)
    		R - BR
    		Blower motor control signal
    1. Ignition switch ON
    2. Blower switch: LO
    		Pulse generation
    (see waveform 2)
    1. Ignition switch ON
    2. Blower switch: off
    		4.5 to 5.5 V
    E81-23 (AC1) - Body ground
    		L - Body ground
    		Compressor operation signal
    1. Engine idling
    2. Blower switch LO
    3. A/C switch off
    		11 to 14 V
    1. Engine idling
    2. Blower switch LO
    3. A/C switch on
    		Below 1 V
    E81-24 (COOL) - Body ground*4
    		W - Body ground
    		Cool box operation signal
    1. Ignition switch ON
    2. Cool box switch on
    		Below 1 V
    1. Ignition switch ON
    2. Cool box switch off
    		11 to 14 V
    E81-25 (ALT) - Body ground
    		R - Body ground
    		Generator assembly signal
    		Ignition switch ON
    		Pulse generation
    E81-27 (ACT) - Body ground
    		G - Body ground
    		Compressor operation signal
    1. Engine idling
    2. A/C switch off or on (magnet clutch off)
    		Below 1 V
    1. Engine idling
    2. A/C switch on (magnet clutch on)
    		11 to 14 V
    E81-30 (S5-3) - E81-13 (SG-2)
    		LG - G
    		Power supply for air conditioner pressure
    		Ignition switch ON
    		4.75 to 5.25 V
    E81-36 (PTC3) - Body ground*2
    		R - Body ground
    		Quick heater assembly operation signal
    1. Engine idling
    2. Set temperature: MAX HOT (HI)
    3. Engine coolant temperature: Below 65°C (149°F)
    4. Ambient temperature: Below 10°C (50°F)
    5. Blower switch: off → on (after 20 seconds)
    		11 to 14 V → Below 1 V
    E81-40 (PTC1) - Body ground*2
    		W - Body ground
    		Quick heater assembly operation signal
    1. Engine idling
    2. Set temperature: MAX HOT (HI)
    3. Engine coolant temperature: Below 65°C (149°F)
    4. Ambient temperature: Below 10°C (50°F)
    5. Blower switch: off → on (after 10 seconds)
    		11 to 14 V → Below 1 V
    E165-4 (TR) - E165-8 (SG-1)
    		W - B
    		Room temperature sensor signal
    1. Ignition switch ON
    2. Front side interior temperature: 25°C (77°F)
    		1.9 to 2.1 V
    Room temperature sensor signal
    1. Ignition switch ON
    2. Front side interior temperature: 50°C (122°F)
    		1.0 to 2.0 V
    E165-6 (ECOS) - Body ground*5
    		B - Body ground
    		Integration control and panel assembly (ECO mode switch) operation signal
    1. Ignition switch ON
    2. Integration control and panel assembly (ECO mode switch) on
    		Below 1 V
    1. Ignition switch ON
    2. Integration control and panel assembly (ECO mode switch) off
    		11 to 14 V
    E165-8 (SG-1) - Body ground
    		B - Body ground
    		Ground for room temperature sensor
    		Always
    		Below 1 Ω
    z71-2 (BUS G) - Body ground
    		-
    		Ground for BUS IC
    		Always
    		Below 1 Ω
    z71-3 (BUS) - z71-2 (BUS G)
    		-
    		BUS IC control signal
    		Ignition switch ON
    		Pulse generation
    z71-4 (B BUS) - z71-2 (BUS G)
    		-
    		Power supply for BUS IC
    		Always
    		11 to 14 V
    z71-5(SG) - Body ground
    		-
    		Ground for evaporator temperature sensor
    		Always
    		Below 1 Ω
    z71-5 (GS) - z71-6 (TE)
    		-
    		Evaporator temperature sensor signal
    1. Ignition switch ON
    2. Evaporator temperature: 15°C (59°F)
    		1.0 to 1.2 V
    1. *1: w/ Viscous Heater
    2. *2: w/ PTC Heater
    3. *3: w/ Condenser Fan
    4. *4: w/ Cool Box
    5. *5: w/ ECO Mode Switch


    5. Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  5. Using an oscilloscope, check waveform 1.

    Compressor Lock Sensor Signal
    Item
    		Content
    Terminal No. (Symbol)
    		E81-8 (LOCK) - E81-13 (SG-2)
    Tool Setting
    		200 mV/DIV., 10 ms/DIV.
    Condition
    1. Engine idling
    2. Blower switch: LO
    3. A/C switch: On
    HINT:
    When the rear blower level is increased, the duty ratio changes accordingly.


    6. Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  6. Using an oscilloscope, check waveform 2.

    Blower Motor Control Signal
    Item
    		Content
    Terminal No. (Symbol)
    		E81-22 (BLW) - E81-14 (GND)
    Tool Setting
    		1 V/DIV., 500 μs/DIV.
    Condition
    1. Ignition switch ON
    2. Blower switch: LO
    HINT:
    When the blower level is increased, the duty ratio changes accordingly.

CHECK AIR CONDITIONING CONTROL ASSEMBLY (w/o Navigation System [w/o Entry and Start System])

Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  1. Disconnect the F10 air conditioning control assembly connector.

  2. Measure the resistance and voltage according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F10-7 (IG+) - F10-1 (GND)
    		B - W-B
    		Ignition power supply
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V
    F10-1 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

  3. Reconnect the F10 air conditioning control assembly connector.

  4. Measure the resistance and voltage according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F10-12 (DTP+) - F10-1 (GND)
    		GR - W-B
    		Temperature up switch signal
    		Temperature up switch not pressed
    		Below 1 V
    Temperature up switch pressed
    		Alternating between 3.5 V or higher and below 1 V
    F10-10 (PTP+) - F10-1 (GND)
    		L - W-B
    		Temperature up switch signal
    		Temperature up switch not pressed
    		Below 1 V
    Temperature up switch pressed
    		Alternating between 3.5 V or higher and below 1 V
    F10-9 (S5) - F10-1 (GND)
    		SB - W-B
    		Signal ground
    		Always
    		Below 1 Ω
    F10-11 (DTP-) - F10-1 (GND)
    		B - W-B
    		Temperature down switch signal
    		Temperature down switch not pressed
    		Below 1 V
    Temperature down switch pressed
    		Alternating between 3.5 V or higher and below 1 V
    F10-3 (PTP-) - F10-1 (GND)
    		V - W-B
    		Temperature down switch signal
    		Temperature down switch not pressed
    		Below 1 V
    Temperature down switch pressed
    		Alternating between 3.5 V or higher and below 1 V
    F10-2 (SG) - F10-1 (GND)
    		R - W-B
    		Signal ground
    		Always
    		Below 1 Ω

CHECK AIR CONDITIONING CONTROL ASSEMBLY (w/o Navigation System [w/ Entry and Start System])
Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  1. Disconnect the F111 air conditioning control assembly connector.

  2. Measure the resistance and voltage according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    F111-5 (IG+) - F111-8 (GND)
    		B - W-B
    		Ignition power supply
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V
    F111-8(GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

CHECK NO. 2 AIR CONDITIONING CONTROL ASSEMBLY (w/ Rear Heater)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Air Conditioning System (For Automatic Air Conditioning System) Terminals Of Ecu

  1. Disconnect the E55 No. 2 air conditioning control assembly connector.

  2. Measure the resistance and voltage according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E55-6 (IG) - E55-1 (E)
    		B - W-B
    		Ignition power supply
    		Always
    		11 to 14 V
    E55-1 (E) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

MULTI-DISPLAY ASSEMBLY (w/ Navigation System) (Click here)

MULTI-MEDIA MODULE RECEIVER ASSEMBLY (w/ Navigation System) (Click here)