System Diagram
System Description
The A/C auto amp. controls A/C compressor operation by ambient temperature, intake air temperature and signal from ECM.
SYSTEM OPERATION
When the A/C switch, the AUTO switch, or the DEF switch is pressed, or when shifting mode position to D/F, the A/C auto amp. transmits the A/C switch signal and blower fan motor switch signal to the ECM, via CAN communication.
ECM judges whether the A/C compressor can be turned ON, based on each sensor status (refrigerant-pressure sensor signal, throttle angle, etc.). If the ECM judges that the A/C compressor can be turned ON, it sends A/C compressor request signal to the IPDM E/R, via CAN communication.
Upon receipt of A/C compressor request signal from the ECM, the IPDM E/R turns the A/C relay ON to operate the A/C compressor.
When sending A/C compressor request signal to the IPDM E/R via CAN communication line, the ECM simultaneously sends A/C compressor feedback signal to A/C auto amp. via CAN communication line.
The ECM sends A/C compressor feedback signal to A/C auto amp., then, uses input A/C compressor feedback signal to control air inlet.
A/C compressor Protection Control
The ECM makes the A/C relay turn OFF and stops the A/C compressor when pressure on the high-pressure side, detected by the refrigerant pressure sensor, is over approximately 3,119 kPa (31.8 kg/cm2, 452 psi), or below approximately 118 kPa (1.2 kg/cm2, 17 psi).
Low Temperature Protection Control
Turn the A/C relay to OFF and stop the A/C compressor by the signal from the A/C auto amp., according to the evaporator passing air temperature detected by the intake sensor and the ambient temperature detected by the ambient sensor
System operation
The automatic drive positioner system will not
work or will stop operating under the following
conditions:
When the vehicle speed is above 0 mph
(0 km/h) or 4 mph (7km/h) for some limited
functions such as linking a key fob to the
meter when the power source is turned on
from off or du ...
Audio system
SYSTEM DESCRIPTION
AUDIO SYSTEM
System Diagram
System Description
AUDIO SYSTEM
The audio system consists of the following components
Audio unit
Display unit
Bluetooth control unit
Window antenna
Steering wheel audio control switches
Front door speakers
Tweeters
Rear door s ...
Driver side door mirror defogger does not operate
Diagnosis Procedure
1. CHECK DOOR MIRROR DEFOGGER LH
Check door mirror defogger LH.
PASSENGER SIDE DOOR MIRROR DEFOGGER DOES NOT OPERATE
Diagnosis Procedure
1. CHECK DOOR MIRROR DEFOGGER RH
Check door mirror defogger RH.
REAR WINDOW DEFOGGER SWITCH DOES NOT LIGHT, BUT REAR WINDOW
DEFOGGER O ...