Toyota 4Runner: Data List / Active Test

Toyota 4Runner Service Manual / Vehicle Interior / Heating / Air Conditioning / Air Conditioning System(for Manual Air Conditioning System) / Data List / Active Test

DATA LIST / ACTIVE TEST

1. DATA LIST

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.

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.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus:

Body Electrical / Air Conditioner / Data List.
Powertrain / Engine and ECT / Data List.

(e) According to the display on the Techstream, read the Data List.

Air Conditioner

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Ambient Temp Sensor	Cooler thermistor (ambient temperature sensor) / Min.: -23.3°C (-9.94°F) Max.: 65.95°C (150.71°F)	Actual ambient temperature displayed	Open in the circuit: -23.3°C (-9.94°F). Short in the circuit: 65.95°C (150.71°F).
Adjusted Ambient Temp	Adjusted ambient temperature / Min.: -30.8°C (-23.44°F) Max.: 50.8°C (123.44°F)	Adjusted ambient temperature displayed	-
Evaporator Fin Thermistor	No. 1 cooler thermistor / Min.: -29.7°C (-21.46°F) Max.: 59.55°C (139.19°F)	Actual evaporator temperature displayed	Open in the circuit: -29.7°C (-21.46°F). Short in the circuit: 59.55°C (139.19°F).
Evaporator Target Temp	Target evaporator temperature / Min.: -327.68°C (-557.82°F) Max.: 327.67°C (621.81°F)	Target evaporator temperature displayed	-
Engine Coolant Temp	Engine coolant temperature / Min.: 1.3°C (34.34°F) Max.: 90.55°C (194.99°F)	Actual engine coolant temperature displayed	-
Blower Motor Speed Level	Blower with fan motor sub-assembly speed level / Min.: 0, Max.: 31	Increases in range from 0 to 31 as blower with fan motor sub-assembly speed increases	-
Air Mix Servo Targ Pulse (D)	Damper servo sub-assembly (air mix damper servo) target / Min.: 0, Max.: 255	112 or 127 (pulse): MAX COOL 21 or 31 (pulse): MAX HOT	-
Air Mix Servo Actual Pulse (D)	Damper servo sub-assembly (air mix damper servo) actual pulse / Min.: 0, Max.: 255	112 or 127 (pulse): MAX COOL 21 or 31 (pulse): MAX HOT	-
Air Outlet Servo Pulse (D)	Damper servo sub-assembly (mode damper servo) / Min.: 0, Max.: 255	15 (pulse): FACE 41 (pulse): B/L 65 or 73 (pulse): FOOT 83 or 95 (pulse): F/D 113 (pulse): DEF	-
Air Outlet Servo Actu Pulse (D)	Damper servo sub-assembly (mode damper servo) / Min.: 0, Max.: 255	15 (pulse): FACE 41 (pulse): B/L 65 or 73 (pulse): FOOT 83 or 95 (pulse): F/D 113 (pulse): DEF	-
Air Inlet Damper Targ Pulse	Recirculation damper servo sub-assembly target pulse / Min.: 0, Max.: 255	7 (pulse): Recirculation 28 (pulse): Fresh	-
Air Inlet Damper Actual Pulse	Recirculation damper servo sub-assembly actual pulse / Min.: 0, Max.: 255	7 (pulse): Recirculation 28 (pulse): Fresh	-
Electric Heater Active Level*	Number of electric heaters operating / 0: Min., 3: Max.	-	-
Number of Trouble Codes	Number of trouble codes / Min.: 0, Max.: 255	Number of DTCs displayed	-

*: w/ PTC Heater

Engine and ECT

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
A/C Signal	A/C signal / ON or OFF	ON: A/C switch on OFF: A/C switch off	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

A/C Signal

A/C signal / ON or OFF

ON: A/C switch on

OFF: A/C switch off

2. 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.

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

(e) According to the display on the Techstream, perform the Active Test.

Air Conditioner

Tester Display	Test Part	Control Range	Diagnostic Note
Blower Motor	Blower with fan motor sub-assembly	Min.: 0, Max.: 31	-
Magnetic Clutch Relay	Magnet clutch relay operation	ON or OFF	-
Defogger Relay (Rear)	Rear window defogger relay operation	ON or OFF	-
Heater Active Level*	Heater level	Min.: 0, Max.: 3	-
Air Mix Servo Targ Pulse (D)	Damper servo sub-assembly (air mix damper servo) target pulse	Min.: 0, Max.: 255	-
Air Outlet Servo Pulse (D)	Damper servo sub-assembly (mode damper servo) pulse	Min.: 0, Max.: 255	-
Air Inlet Damper Targ Pulse	Recirculation damper servo sub-assembly target pulse	Min.: 0, Max.: 255	-

*: w/ PTC Heater

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