CONSULT Function

M.U.T.-III SE Function

M.U.T.-III SE performs the following functions via CAN communication with A/C amp.

Diagnostic mode	Description
Self Diagnostic Result	Display DTC which A/C amp. memorizes.
Data List	Displays the input/output signal of A/C amp.
Work support	The signals used to activate each device are forcibly supplied from A/C amp. Changes the setting for each setting function. Displays the part number of A/C amp.

note	Diagnosis should be performed with engine running. Door motor operation speeds become slower and NO results may be returned even for normal operation if battery voltage drops below 12 V during self-diagnosis.

SELF-DIAGNOSIS RESULTS

Diagnosis result that is judged by A/C amp. can be checked. Refer to DTC Index

DATA MONITOR

Input/output signal of A/C amp. can be checked.

note	The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to M.U.T.-III SE display items.

Display item list

Monitor item [Unit]		Description
IN-VEH TEMP	[°C]	In-vehicle temperature value converted from in-vehicle sensor signal received from in-vehicle sensor.
INT TEMP SEN	[°C]	Evaporator fin temperature value converted from intake sensor signal received from intake sensor.
SUNLOAD SEN	[W/m^2]	Sunload value converted from sunload sensor signal received from sunload sensor.
AMB SEN CAL	[°C]	Ambient temperature value calculated by A/C amp.
IN-VEH CAL	[°C]	In-vehicle temperature (driver side) value calculated by A/C amp.
PASS IN CAL	[°C]	In-vehicle temperature (passenger side) value calculated by A/C amp.
INT TEMP CAL	[°C]	Evaporator fin temperature value calculated by A/C amp.
SUNL SEN CAL	[W/m^2]	Sunload value calculated by A/C amp.
XM		Target discharge air temperature (driver side) judged by A/C amp. depending on the temperature setting and the value from each sensor.
FAN REQ SIG	[On/Off]	Displays blower fan ON signal ON/OFF status transmitted to ECM.
COMP REQ SIG	[On/Off]	Displays A/C ON signal ON/OFF status transmitted to ECM.
A/C comp clutch status	[On/Off]	A/C compressor status judged from the A/C compressor feedback signal received from IPDM E/R via CAN communication.
RR XM	[°C]	Target discharge air temperature (rear) judged by A/C amp. depending on the temperature setting and the value from each sensor.
Assist seat target air temperature		Target discharge air temperature (passenger side) judged by A/C amp. depending on the temperature setting and the value from each sensor.
Blower fan duty	[%]	Duty ratio of front blower motor judged by A/C amp.
AMB TEMP SEN	[°C]	Ambient temperature signal value received from combination meter via CAN communication.
Vehicle speed	[km/h]	Vehicle speed signal value received from ABS actuator and electric unit (control unit) via CAN communication.
ODO/TRIP METER	[km]	Odometer signal value received from ABS actuator and electric unit (control unit) via CAN communication.
Engine RPM	[rpm]	Engine speed signal value received from ECM via CAN communication.
ENG COOL TEMP	[°C]	Engine coolant temperature signal value received from ECM via CAN communication.

WORK SUPPORT

Setting change of each setting functions can be performed.

Function name

Work support items

Description

Display

Setting

ECU Information

–

Displays the part number of A/C amp.

–

Actuator Test

–

The signals used to activate each device are forcibly supplied from A/C amp.

–

Setting change

TEMP SET CORRECT

If the temperature felt by the customer is different from the air flow temperature controlled by the temperature setting, the A/C amp. control temperature can be adjusted to compensate for the temperature setting.

0.0°C/0°F^*

A/C amp. control temperature against set temperature can be set (-3.0)°C/(-6)°F – (+3.0)°C/(+6)°F at a rate of 0.5°C/1°F per adjustment.

note	When −3.0°C (−6°F) is corrected on the temperature setting set as 25.0°C (77°F) the temperature controlled by A/C amp. is 25.0°C (77°F) −3.0°C (−6°F) = 22.0°C (72°F) and the temperature becomes lower than the temperature setting.

REC MEMORY SET

note	This item displayed, but cannot be used.

FRE MEMORY SET

note	This item displayed, but cannot be used.

BLOW SET

In FOOT mode, the air blowing to DEF can change ON/OFF.

O/A C/M^*

Auto control: Defroster door position (open)
Manual control: Defroster door position (close)

O/A O/M

Auto control: Defroster door position (open)
Manual control: Defroster door position (open)

C/A O/M

Auto control: Defroster door position (close)
Manual control: Defroster door position (open)

C/A C/M

Auto control: Defroster door position (close)
Manual control: Defroster door position (close)

TARGET EVAPORATOR TEMP UPPER LIMIT SETTING

Setting of upper limit value of target evaporator temperature can be changed. Control characteristic of A/C compressor control (freezing protection control and refrigerant discharge amount control) changes according to change of the setting, and then operation ratio of A/C compressor and refrigerant discharge amount are changed. According to change of the setting, control characteristic focusing on the fuel consumption can be adjusted to control characteristic focusing on the cooling capacity.

DEFAULT^*

Target evaporator temperature upper limit value: 10°C (50°F)

3°C

Target evaporator temperature upper limit value: 3°C (37°F)

5°C

Target evaporator temperature upper limit value: 5°C (41°F)

7°C

Target evaporator temperature upper limit value: 7°C (45°F)

STOP/START SYSTEM OPERATION COND SETTING

note	This item displayed, but cannot be used.

AIR INLET CHANGE SETTING

note	This item displayed, but cannot be used.

AIR FLOW REDUCTION SETTING

note	This item displayed, but cannot be used.

*: Initial status

note	When the battery cable is disconnected from the negative terminal or when the battery voltage is 10 V or less, the setting for the work support item is set to the value stored 1 minute after most recent ignition switch OFF status.

ACTIVE TEST

The signals used to activate each device forcibly supplied from A/C amp. operation check of air conditioning system can be performed.

Test item	Operation	Description
HVAC TEST		The operation check of air conditioning system can be performed by selecting the mode. Refer to the following table for the conditions of each mode.
Heater seat FL	Off	OFF
Heater seat FL	Heat HI	Operates the front seat heater LH.
Heater seat FR	Off	OFF
Heater seat FR	Heat HI	Operates the front seat heater RH.
Heater seat RL	Off	OFF
Heater seat RL	Heat HI	Operates the rear seat heater LH.
Heater seat RR	Off	OFF
Heater seat RR	Heat HI	Operates the rear seat heater RH.
Heated steering wheel request	Heated steering wheel request	Operates the heated steering wheel relay.
Heated steering wheel request	Off	OFF

Check each output device

—	Test item
—	MODE 1	MODE 2	MODE 3	MODE 4	MODE 5	MODE 6	MODE 7
Mode door motor position	VENT	VENT	B/L	B/L	FOOT	D/F	DEF
Intake door motor position	REC	REC	20% FRE	20% FRE	FRE	FRE	FRE
Magnetic clutch (A/C compressor request signal)	ON	ON	ON	ON	OFF	OFF	ON
Air mix door motor LH position	FULL COLD	FULL HOT	FULL COLD	FULL HOT	FULL HOT	FULL HOT	FULL HOT
Air mix door motor RH position	FULL COLD	FULL HOT	FULL COLD	FULL HOT	FULL HOT	FULL HOT	FULL HOT
Air mix door motor (rear) position	FULL COLD	FULL HOT	FULL COLD	FULL HOT	FULL HOT	FULL HOT	FULL HOT
Front blower motor control signal (duty ratio)	35%	35%	60%	60%	90%	90%	35%
ECV duty ratio	80%	80%	40%	40%	0%	0%	90%

note	Perform the inspection of each output device after starting the engine because the A/C compressor is operated.

ECU IDENTIFICATION

Part number of A/C amp. can be checked.