Operation CHARM: Car repair manuals for everyone.

Scan Tool Data Definitions

Scan Tool Data Definitions

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

EVAPORATOR TEMP: Temperature of air passed through evaporator.

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

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: State of rear defogger indicator lamp

FUEL TYPE (GASOLINE or DIESEL): Type of fuel which should be used