Toyota 4Runner manuals

Toyota 4Runner: 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.

(c) Turn the Techstream 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

-

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.

(c) Turn the Techstream 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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