Scan Tool Testing and Procedures

Scan Tool Data







As the data values given are standard values estimated on the basis of values obtained from the normally operating vehicles by using a scan tool, use them as reference values. Even when the vehicles are in good condition, there may be cases where the checked values do not fall within each specifies data range. Therefore, judgement as abnormal should not be made by checking with these data alone.

Scan Tool Data Definitions

TEMP CONT SWITCH: Position of temperature control selector of HVAC control module

CABIN TEMPERATURE (for vehicle with automatic air conditioning model): Inside air temperature detected by inside air temperature sensor installed in HVAC control module

OUTSIDE AIR TEMPERATURE (for vehicle with automatic air conditioning model): Outside air temperature detected by outside air temperature sensor installed on 4WD air pump assembly bracket

EVAPORATOR TEMP: Temperature of air passed through evaporator

COOLANT TEMP: Engine coolant temperature detected by engine coolant temperature sensor

SUNLOAD (for vehicle with automatic air conditioning model): Amount of sunlight detected by sunload sensor installed on the driver side on the dashboard

MODE CONT SWITCH: Position of airflow selector of HVAC control module

FAN CONT SWITCH: Position of air speed selector of HVAC control module

FAN DESIRE VOLT: Voltage for blower motor

AIR MIX POS SENSOR: Input signal from position sensor in temperature control actuator

MODE POS SENSOR: Input signal form position sensor in air flow control actuator

A/C CONT SIG (ON or OFF): State of A/C indicator lamp

BLOWER FAN LOAD (ON or OFF):
- ON: Position of blower speed selector is 1st or 2nd position.
- OFF: Position of blower speed selector is more than 3rd position.

AIR INTAKE MODE (FRE, REC or MIX): State of air intake mode

A/C INDICATOR LAMP (ON or OFF): State of A/C indicator lamp

FRE INDICATOR LAMP (ON or OFF): State of fresh air (FRE) indicator lamp

REC INDICATOR LAMP (ON or OFF): State of recirculation air (REC) indicator lamp

REAR DEF INDICATOR (ON or OFF): State of rear defogger indicator lamp

ILLUMINATION (ON or OFF): State of lighting switch

STEERING WHEEL (RIGHT or LEFT) (for vehicle with automatic air conditioning model): Position of steering wheel

FUEL TYPE (GASOLINE or DIESEL) (for vehicle with automatic air conditioning model): Type of fuel which should be used