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 |
|---|---|---|---|
|
Room Temperature Sensor |
Cooler thermistor (room temperature sensor) / Min.: -6.5°C (20.3°F) Max.: 57.25°C (135.05°F) |
Actual room temperature for front seat displayed |
Open in the circuit: -6.5°C (20.3°F). Short in the circuit: 57.25°C (135.05°F). |
|
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 |
- |
|
Solar Sensor (D Side) |
Automatic light control sensor (solar sensor) / Min.: 0, Max.: 255 |
Driver side solar sensor voltage increases as brightness increases |
Open in the circuit: 0. Short in the circuit: 255. |
|
Solar Sensor (P Side) |
Automatic light control sensor (solar sensor) / Min.: 0, Max.: 255 |
Passenger side solar sensor voltage increases as brightness increases |
Open in the circuit: 0. Short in the circuit: 255. |
|
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 |
- |
|
Set Temperature (D Side) |
Driver side set temperature / MAX COLD: 17.5°C (63.5°F) MAX HOT: 32.5°C (90.5°F) |
Driver side set temperature displayed |
- |
|
Set Temperature (P Side) |
Passenger side set temperature / MAX COLD: 17.5°C (63.5°F) MAX HOT: 32.5°C (90.5°F) |
Passenger side set 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 (driver side air mix damper servo) target pulse / Min.: 0, Max.: 255 |
107 (pulse): MAX COOL 26 (pulse): MAX HOT |
- |
|
Air Mix Servo Actual Pulse (D) |
Damper servo sub-assembly (driver side air mix damper servo) actual pulse / Min.: 0, Max.: 255 |
107 (pulse): MAX COOL 26 (pulse): MAX HOT |
- |
|
Air Mix Servo Targ Pulse (P) |
Damper servo sub-assembly (front passenger side air mix damper servo) target pulse / Min.: 0, Max.: 255 |
112 or 127 (pulse): MAX COOL 21 or 31 (pulse): MAX HOT |
- |
|
Air Mix Servo Actual Pulse (P) |
Damper servo sub-assembly (front passenger side 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) target pulse / Min.: 0, Max.: 255 |
15 (pulse): FACE 1 15 (pulse): FACE 2 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) actual pulse / Min.: 0, Max.: 255 |
15 (pulse): FACE 1 15 (pulse): FACE 2 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 / Min.: 0, Max.: 3 |
- |
- |
|
Shift Set Temperature |
Set temperature shift / 2C incr, 1C incr, Normal, 1C decr or 2C decr |
Customized value displayed |
- |
|
Compressor Mode |
Compressor mode / Auto or Manual |
Customized setting displayed |
- |
|
Add Foot Air in FACE Mode |
Add foot air in face mode / ON or OFF |
Customized setting displayed |
- |
|
Foot/DEF Auto Mode |
Foot/Def auto mode / ON or OFF |
Customized setting displayed |
- |
|
Foot/DEF Auto Blow Up |
Foot/Def auto blower level function / ON or OFF |
Customized setting displayed |
- |
|
Number of Trouble Codes |
Number of trouble codes / Min.: 0, Max.: 255 |
Number of DTCs stored |
- |
- *: w/ PTC Heater
|
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 (driver side air mix damper servo) target pulse |
Min.: 0, Max.: 255 |
- |
|
Air Mix Servo Targ Pulse (P) |
Damper servo sub-assembly (front passenger side 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
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Air conditioning system data and Diagnostic Trouble Codes (DTCs) can be read
through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to
...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK FOR DTC
(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 Con ...
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PRECAUTION
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