A/C CUT-OFF CONTROL OPERATION [MZR 1.6]
id0140j7103700
Operation Condition
A/C cut-off control operation conditions
Operation condition |
A/C relay non-energization period |
Purpose |
---|---|---|
At engine start
|
Approx. 4 s
|
Improved startability
|
When engine coolant temperature is 113 °C {235 °F}
|
Repeatedly turns on and off every 10 s until the engine coolant temperature is less than 107 °C {225 °F}
|
Improved engine reliability
|
When temperature in PCM is 110 °C {230 °F}
|
Repeatedly turns on and off every 10 s until the temperature in PCM is less than 107 °C {225 °F}
|
Improved engine reliability
|
Engine coolant temperature is 117 °C {243 °F} or more
|
Until engine coolant temperature is less than 110 °C {230 °F}
|
Improved engine reliability
|
At high engine speed
(engine speed 6,400 rpm or more)
|
Until engine speed decreases to less than 5,900 rpm
|
Improved A/C compressor reliability
|
When temperature in PCM is 115 °C {239 °F} or more
|
Until temperature is PCM decreases to less than 112 °C {234 °F}
|
PCM protection
|
Accelerated
|
3—5 s
|
Acceleration from standstill/acceleration performance improvement
|
Refrigerant pressure 3.14 MPa {32.0 kgf/cm2, 455 psi} or more
|
Refrigerant pressure decreases to 2.55 MPa {26.0 kgf/cm2, 370 psi} or less
|
A/C compressor reliability assurance
|
Refrigerant pressure of 0.196 MPa {2.00 kgf/cm2, 28.4 psi} or less continues for 5 s or more
|
Refrigerant pressure of 0.226 MPa {2.30 kgf/cm2, 32.8 psi} or more continues to 5 s or more
|
A/C compressor reliability assurance
|
Drive-by-wire control malfunction
|
—
|
Reverse driving performance assurance
|
Panic braking determined
|
—
|
Load performance assurance
|
Travel on ascending road
|
—
|
Ascent performance improvement
|