Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Data List / Active Test

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Heating / Air Conditioning / Air Conditioning System(for Gasoline Model) / Data List / Active Test

DATA LIST / ACTIVE TEST

DATA LIST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus:

(1) for Air Conditioner: Body Electrical / Air Conditioner / Data List.

(2) for Engine: Powertrain / Engine / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Air Conditioner > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Room Temperature Sensor	Cooler (room temp. sensor) thermistor	Min.: -6.50°C (20.30°F) Max.: 57.25°C (135.05°F)	Actual cabin temperature displayed	Cooler (room temp. sensor) thermistor circuit malfunction When open circuit: -6.50°C (20.30°F) When short circuit: 57.25°C (135.05°F)
Ambient Temp Sensor	Thermistor assembly	Min.: -23.30°C (-9.94°F) Max.: 65.95°C (150.71°F)	Actual ambient temperature displayed	Thermistor assembly circuit malfunction When open circuit: -23.30°C (-9.94°F) When short circuit: 65.95°C (150.71°F)
Adjusted Ambient Temp	Adjusted ambient temperature	Min.: -30.80°C (-23.44°F) Max.: 50.80°C (123.44°F)	Adjust ambient temperature displayed	Air conditioning amplifier assembly malfunction
Evaporator Fin Thermistor	No. 1 cooler thermistor	Min.: -29.70°C (-21.46°F) Max.: 59.55°C (139.19°F)	Actual evaporator temperature displayed	No. 1 cooler thermistor circuit malfunction When open circuit: -29.70°C (-21.46°F) When short circuit: 59.55°C (139.19°F)
Evaporator Target Temp	Evaporator target temperature	Min.: -327.68°C (-557.82°F) Max.: 327.67°C (621.81°F)	Evaporator target temperature displayed	No. 1 cooler thermistor circuit malfunction When open circuit: -327.68°C (-557.82°F) When short circuit: 327.67°C (621.81°F)
Solar Sensor (D Side)	Driver side automatic light control sensor	Min.: 0 Max.: 255	Driver side automatic light control sensor value increases as brightness increases	Driver side automatic light control sensor circuit malfunction When open circuit: 0 When short circuit: 255
Solar Sensor (P Side)	Front passenger side automatic light control sensor	Min.: 0 Max.: 255	Front passenger side automatic light control sensor value increases as brightness increases	Front passenger side automatic light control sensor circuit malfunction When open circuit: 0 When short circuit: 255
Engine Coolant Temp	Engine coolant temperature sensor	Min.: 1.30°C (34.34°F) Max.: 90.55°C (194.99°F)	Actual engine coolant temperature displayed	SFI system malfunction CAN communication system malfunction
Blower Motor Speed Level	Blower motor speed level	Min.: 0 Max.: 31	Displayed speed level increases in range between 0 and 31 as blower motor speed increases	Blower motor with fan sub-assembly circuit malfunction
Regulator Pressure Sensor	Air conditioner pressure sensor	Min.: -66.2 psi (gauge) Max.: 478.0 psi (gauge)	Actual refrigerant pressure displayed	Refrigerant line (gas leak etc.) Air conditioner pressure sensor circuit malfunction
Regulator Control Current	Solenoid valve control current	Min.: 0 A Max.: 0.997 A	Value changes between 0 A and 0.997 A in accordance with solenoid valve operation	Cooler compressor assembly circuit malfunction
Air Outlet Servo Pulse (R)	No. 2 air conditioning radiator damper servo sub-assembly target pulse	Min.: 128 Max.: 383	FACE: 260 (pulse) B/L: 212 (pulse) FOOT: 182 (pulse) F/D: 220 (pulse) SHUT: 158 (pulse) D/F: 177 (pulse)	No. 2 air conditioning radiator damper servo sub-assembly circuit malfunction
Air Outlet Servo Actual Pls(R)	No. 2 air conditioning radiator damper servo sub-assembly actual pulse	Min.: 128 Max.: 383	FACE: 260 (pulse) B/L: 212 (pulse) FOOT: 182 (pulse) F/D: 220 (pulse) SHUT: 158 (pulse) D/F: 177 (pulse)	No. 2 air conditioning radiator damper servo sub-assembly circuit malfunction
Air Mix Servo Targ Pulse(D)	No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix or air mix) target pulse	Min.: 128 Max.: 383	MAX COLD: 257 (pulse) MAX HOT: 165 (pulse)	No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix) circuit malfunction
Air Mix Servo Actual Pulse(D)	No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix or air mix) actual pulse	Min.: 128 Max.: 383	MAX COLD: 257 (pulse) MAX HOT: 165 (pulse)	No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix) circuit malfunction
Air Mix Servo Targ Pulse(P)	No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) target pulse	Min.: 128 Max.: 383	MAX COLD: 255 (pulse) MAX HOT: 347 (pulse)	No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) circuit malfunction
Air Mix Servo Actual Pulse(P)	No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) actual pulse	Min.: 128 Max.: 383	MAX COLD: 255 (pulse) MAX HOT: 347 (pulse)	No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) circuit malfunction
Air Outlet Servo Pulse (D)	No. 1 air conditioning radiator damper servo sub-assembly (mode) target pulse	Min.: 128 Max.: 383	FACE-R: 241 (pulse) FACE: 256 (pulse) FACE1: 256 (pulse) FACE2: 256 (pulse) B/L: 267 (pulse) B/L2: 267 (pulse) FOOT-R: 305 (pulse) FOOT: 297 (pulse) FOOT-D: 305 (pulse) FOOT-0: 288 (pulse) F/D: 320 (pulse) DEF-FOOT: 339 (pulse) DEF or SHUT: 348 (pulse)	No. 1 air conditioning radiator damper servo sub-assembly (mode) circuit malfunction
Air Outlet Servo Actu Pulse(D)	No. 1 air conditioning radiator damper servo sub-assembly (mode) actual pulse	Min.: 128 Max.: 383	FACE-R: 241 (pulse) FACE: 256 (pulse) FACE1: 256 (pulse) FACE2: 256 (pulse) B/L: 267 (pulse) B/L2: 267 (pulse) FOOT-R: 305 (pulse) FOOT: 297 (pulse) FOOT-D: 305 (pulse) FOOT-0: 288 (pulse) F/D: 320 (pulse) DEF-FOOT: 339 (pulse) DEF or SHUT: 348 (pulse)	No. 1 air conditioning radiator damper servo sub-assembly (mode) circuit malfunction
Air Inlet Damper Targ Pulse	No. 1 blower damper servo sub-assembly target pulse	Min.: 128 Max.: 383	Recirculation: 256 (pulse) Fresh: 220 (pulse)	No. 1 blower damper servo sub-assembly circuit malfunction
Air Inlet Damper Actual Pulse	No. 1 blower damper servo sub-assembly actual pulse	Min.: 128 Max.: 383	Recirculation: 256 (pulse) Fresh: 220 (pulse)	No. 1 blower damper servo sub-assembly circuit malfunction
Shift Set Temperature	Shift set temperature	2C decr, 1C decr, Normal, 1C incr or 2C incr	Customized value displayed	-
Air Inlet Mode	Air inlet mode	Auto or Manual	Customized value displayed	*1
Compressor Mode	Compressor mode	Auto or Manual	Customized value displayed	-
Evaporator Control	Evaporator control	Auto or Manual	Customized value displayed	-
ECO MODE Cancel	ECO mode cancel	OFF or ON	Customized value displayed	-
ECO Switch	ECO switch assembly (electric parking brake switch assembly)	OFF or ON	OFF: ECO switch assembly (electric parking brake switch assembly) not pushed ON: ECO switch assembly (electric parking brake switch assembly) pushed and held	ECO switch assembly (electric parking brake switch assembly) circuit malfunction
Refrigerant Shortage Check	Refrigerant shortage check	ON or OFF	Customized value displayed	-
Fan speed increment control	Fan speed increment control	Slow, Normal or Fast	Customized value displayed	-
Foot/DEF Auto Mode	Foot/defroster auto mode	ON or OFF	Customized value displayed	-
Foot/DEF Auto Blow Up	Foot/defroster auto blower speed increase	ON or OFF	Customized value displayed	-
Ambient Temperature Shift	Ambient temperature shift	3C decr, 2C decr, 1C decr, Normal, 1C incr, 2C incr or 3C incr	Customized value displayed	-
A/C Cutoff Signal	A/C control cutoff signal	OFF or ON	The ECM sends the air conditioning control cutoff signal displayed	-
Refrigerant Gas Type	Refrigerant gas type	R134a or 1234yf	Refrigerant gas type displayed	-
Set Temperature (D Side)	Driver side set temperature	Min.: MAX COLD Max.: MAX HOT	Driver side set temperature displayed	-
Set Temperature (P Side)	Front passenger side set temperature	Min.: MAX COLD Max.: MAX HOT	Front passenger side set temperature displayed	-
Outside Air Mode Auto Switch Function	Outside air mode auto switch function	ON or OFF	Customized value displayed	-
Number of Trouble Codes	Number of trouble codes	Min.: 0 Max.: 255	Number of DTCs displayed	-
Refrigerant High Pressure History	Refrigerant high pressure history	Min.: 0 Max.: 255	Number of times refrigerant high pressure history stored displayed	*2

*1: except USA and Canada
*2: Refer to the following procedure to clear the refrigerant high pressure history.
Click here

Powertrain > Engine > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Coolant Temperature

Engine coolant temperature

Min.: -40°C (-40°F)

Max.: 140°C (284°F)

75 to 100°C (167 to 212°F): After warming up

This is the engine coolant temperature.

HINT:

After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F).
After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal.
If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted.
Check if the engine overheats if the value indicated is higher than 135°C (275°F).

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Body Electrical / Air Conditioner / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Air Conditioner > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Blower Motor	Blower motor with fan sub-assembly	Min.: 0 Max.: 31	-
Magnetic Clutch Relay	Air conditioning system operation	OFF or ON	-
Defogger Relay (Rear)	Rear window defogger	OFF or ON	-
Air Mix Servo Targ Pulse(D)	No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix) pulse	Min.: 128 Max.: 383	Operates between 165 and 257 pulses
Air Mix Servo Targ Pulse(P)	No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) pulse	Min.: 128 Max.: 383	Operates between 255 and 347 pulses
Air Outlet Servo Pulse (D)	No. 1 air conditioning radiator damper servo sub-assembly (mode) pulse	Min.: 128 Max.: 383	Operates between 241 and 348 pulses
Air Inlet Damper Targ Pulse	No. 1 blower damper servo sub-assembly pulse	Min.: 128 Max.: 383	Operates between 220 and 256 pulses
A/O Servo Pulse(Rr D)	No. 2 air conditioning radiator damper servo sub-assembly pulse	Min.: 128 Max.: 383	Operates between 158 and 260 pulses

Customize Parameters

Diagnosis System

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