Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000015E59
Model Year Start: 2018 Model: Camry Prod Date Range: [06/2017 - 08/2021]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System): DATA LIST / ACTIVE TEST; 2018 - 2021 MY Camry [06/2017 - 08/2021]

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 ignition switch to ON.

(c) Turn the Techstream on.

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

-

Ambient Temp Sensor

Thermistor assembly

Min.: -23.30°C (-9.94°F)

Max.: 65.95°C (150.71°F)

Actual ambient temperature displayed

-

Adjusted Ambient Temp

Adjusted ambient temperature

Min.: -30.80°C (-23.44°F)

Max.: 50.80°C (123.44°F)

-

-

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

-

Evaporator Target Temp

Evaporator target temperature

Min.: -327.68°C (-557.82°F)

Max.: 327.67°C (621.81°F)

Evaporator target temperature displayed

-

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

-

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

*1

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

-

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

-

Regulator Pressure Sensor

Air conditioner pressure sensor

Min.: -456.68 kPaG

Max.: 3294.37 kPaG

Actual refrigerant pressure displayed

-

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

-

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: 223 (pulse)
  • SHUT: 158 (pulse)
  • D/F: 177 (pulse)

*1

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: 223 (pulse)
  • SHUT: 158 (pulse)
  • D/F: 177 (pulse)

*1

Air Mix Servo Targ Pulse(D)

No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix*1 or air mix*2) target pulse

Min.: 128

Max.: 383

  • MAX COLD: 257 (pulse)
  • MAX HOT: 165 (pulse)

-

Air Mix Servo Actual Pulse(D)

No. 1 air conditioning radiator damper servo sub-assembly (driver side air mix*1 or air mix*2) actual pulse

Min.: 128

Max.: 383

  • MAX COLD: 257 (pulse)
  • MAX HOT: 165 (pulse)

-

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)

*1

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)

*1

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: 297 (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)

-

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: 297 (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)

-

Air Inlet Damper Targ Pulse

No. 1 blower damper servo sub-assembly target pulse

Min.: 128

Max.: 383

  • Recirculation: 256 (pulse)
  • Fresh: 220 (pulse)

-

Air Inlet Damper Actual Pulse

No. 1 blower damper servo sub-assembly actual pulse

Min.: 128

Max.: 383

  • Recirculation: 256 (pulse)
  • Fresh: 220 (pulse)

-

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

*3

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

*4

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

*4

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 R1234yf

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

*1

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

*5

  • *1: for Dual Type
  • *2: for Single Type
  • *3: except USA and Canada
  • *4: w/ Electric Parking Brake System
  • *5: Refer to the following procedure to clear the refrigerant high pressure history.

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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 ignition switch to ON.

(c) Turn the Techstream on.

(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*1 or air mix*2) pulse

Min.: 128

Max.: 383

Operates between 165 to 257 pulses

Air Mix Servo Targ Pulse(P)

No. 1 air conditioning radiator damper servo sub-assembly (front passenger side air mix) pulse*1

Min.: 128

Max.: 383

Operates between 255 to 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 to 348 pulses

Air Inlet Damper Targ Pulse

No. 1 blower damper servo sub-assembly pulse

Min.: 128

Max.: 383

Operates between 220 to 256 pulses

A/O Servo Pulse(Rr D)

No. 2 air conditioning radiator damper servo sub-assembly pulse*1

Min.: 128

Max.: 383

Operates between 158 to 260 pulses

  • *1: for Dual Type
  • *2: for Single Type