Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

1. DATA LIST

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.

(e) Check the value(s) by referring to the table below.

Air Conditioner

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Room Temperature Sensor

Cooler thermistor (room temperature sensor) /

Min.: -6.50°C (20.30°F)

Max.: 57.25°C (135.05°F)

Actual cabin temperature displayed

-

Ambient Temp Sensor

Ambient temperature sensor /

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

Cooler thermistor sensor (evaporator temperature sensor) /

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

-

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.: -66.22 psi (gauge)

Max.: 477.68 psi (gauge)

Actual pressure is displayed

-

Electric Heater Count*1

Maximum heater operation level /

Min.: 0

Max.: 3

Maximum possible operation level of quick heater assembly (PTC heater) displayed

-

Electric Heater Active Level*1

Actual heater operation level /

Min.: 0

Max.: 3

Actual operation level of quick heater assembly (PTC heater) displayed

-

Shift Set Temperature

Shift set temperature /

2C decr, 1C decr, Normal, 1C incr, 2C incr

Customized value displayed

-

Air Inlet Mode*2

Air inlet mode /

Auto or Manual

Customized value displayed

-

Compressor Mode

Compressor mode /

Auto or Manual

Customized value displayed

-

Fan speed increment control

Fan speed increment control /

Slow, Normal, Fast

Customized value displayed

-

Foot/DEF Auto Mode

Foot/DEF auto mode /

ON or OFF

Customized value displayed

-

Foot/DEF Auto Blow Up

Foot/DEF auto blower speed increase /

ON or OFF

Customized value 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

-

Air Mix Damper Position (Driver Side)

Air mix damper servo motor (for driver side) actual position /

Min.: -14.0%

Max.: 113.5%

MAX COOL: 0.0%

MAX HOT: 100.0%

-

Air Mix Damper Position (Passenger Side)

Air mix damper servo motor (for front passenger side) actual position /

Min.: -14.0%

Max.: 113.5%

MAX COOL: 0.0%

MAX HOT: 100.0%

-

Air Outlet Damper Position

Mode damper servo motor actual position /

Min.: -14.0%

Max.: 113.5%

FACE: 0.0%

DEF: 100.0%

-

Air Inlet Damper Position

Air inlet damper servo motor actual position /

Min.: -14.0%

Max.: 113.5%

FRESH: 0.0%

RECIRCULATION: 100.0%

-

Air Mix Damper Target (Driver Side)

Air mix damper servo motor (for driver side) target position /

Min.: -14.0%

Max.: 113.5%

MAX COOL: 0.0%

MAX HOT: 100.0%

-

Air Mix Damper Target (Passenger Side)

Air mix damper servo motor (for front passenger side) target position /

Min.: -14.0%

Max.: 113.5%

MAX COOL: 0.0%

MAX HOT: 100.0%

-

Air Outlet Damper Target

Mode damper servo motor target position /

Min.: -14.0%

Max.: 113.5%

FACE: 0.0%

DEF: 100.0%

-

Air Inlet Damper Target

Air inlet damper servo motor target position /

Min.: -14.0%

Max.: 113.5%

FRESH: 0.0%

RECIRCULATION: 100.0%

-

DEF (PSW/Lock) Mode Setting

DEF (PSW/Lock) Mode Setting /

Link or Normal

Customized value displayed

-

Number of Trouble Codes

Number of trouble codes /

Min.: 0

Max.: 255

Number of DTCs displayed

-

  • *1: w/ PTC Heater
  • *2: except U.S.A and Canada

2. ACTIVE TEST

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) Check the operation by referring to the table below.

Air Conditioner

Tester Display

Test Part

Control Range

Diagnostic Note

Blower Motor

Blower motor with fan sub-assembly

Min.: 0, Max.: 31

-

Air Mix Damper (Driver Side)

Air mix damper servo motor (for driver side)

Min.: -14.0% , Max.: 113.5%

Operates between 0 and 100%

Air Mix Damper (Passenger Side)

Air mix damper servo motor (for front passenger side)

Min.: -14.0% , Max.: 113.5%

Operates between 0 and 100%

Air Outlet Damper (Driver Side)

Mode damper servo motor

Min.: -14.0% , Max.: 113.5%

Operates between 0 and 100%

Air Inlet Damper (Rear)

Air inlet damper servo motor

Min.: -14.0% , Max.: 113.5%

Operates between 0 and 100%

Magnetic Clutch Relay

Air conditioning system operation

OFF, ON

-

Mirror Heater Relay

Mirror heater

OFF, ON

-

Electrical Fan

Electrical Fan

OFF, ON

-

Heater Active Level*1

Quick heater assembly

Min.: 0, Max.: 3

-

  • *1: w/ PTC Heater
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