AIR CONDITIONING CUT CONTROL : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor | Input Signal to ECM | ECM function | Actuator | |
Crankshaft position sensor (POS) | Engine speed* Piston position | Air conditioner cut control | IPDM E/R
↓ Air conditioner relay ↓ Compressor |
|
Camshaft position sensor (PHASE) | ||||
Engine coolant temperature sensor | Engine coolant temperature | |||
Accelerator pedal position sensor | Accelerator pedal position | |||
Battery | Battery voltage* | |||
Refrigerant pressure sensor | Refrigerant pressure | |||
EPS control unit | CAN communication | EPS operation signal | ||
Combination meter | CAN communication | Vehicle speed signal | ||
A/C auto amp. | CAN communication |
|
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
P0075 IVT control solenoid valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0075
INT/V TIM V/CIR-B1
(Intake valve control solenoid
circuit bank 1)
An improper voltage is sent to the ECM
through intake val ...
Main line between dlc and av circuit
Diagnosis procedure
1.Check harness continuity (open circuit)
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
AV control unit
Check the continuity between the data link connector and the av ...
Intake valve timing control
INTAKE VALVE TIMING CONTROL : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed and piston position
Intake valve timing
control
Intake valve timing con ...