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 |
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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. |
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. |
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. |
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.
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REC MEMORY SET |
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FRE MEMORY SET |
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BLOW SET | In FOOT mode, the air blowing to DEF can change ON/OFF. | O/A C/M* |
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O/A O/M |
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C/A O/M |
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C/A C/M |
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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 |
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AIR INLET CHANGE SETTING |
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AIR FLOW REDUCTION SETTING |
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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. |
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 |
Heat HI | Operates the front seat heater LH. | |
Heater seat FR | Off | OFF |
Heat HI | Operates the front seat heater RH. | |
Heater seat RL | Off | OFF |
Heat HI | Operates the rear seat heater LH. | |
Heater seat RR | Off | OFF |
Heat HI | Operates the rear seat heater RH. | |
Heated steering wheel request | Heated steering wheel request | Operates the heated steering wheel relay. |
Off | OFF |
— | 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. |