A/C CUT-OFF CONTROL OPERATION [LF, L3]


id0140a6103700

• The PCM stops energization to the A/C relay when any of the following conditions are met:

A/C cut-off control operation conditions

Operation condition

A/C relay non-energization period

Purpose

At engine start

Approx. 4 s

Improved startability
At drive-away

Approx. 3 s

Improved drive-away performance
During acceleration (throttle valve opening angle 50% or more)

Approx. 5 s

Improved acceleration performance
When the engine coolant temperature is 113 °C {235 °F}
Repeatedly turns on and off every 10 s until the engine coolant temperature is less than approx. 110 °C {230 °F}
Improved engine reliability
When the engine coolant temperature is 117 °C {242 °F} or more
Until the engine coolant temperature decreases to less than approx. 114 °C {237 °F}
Improved engine reliability
At high engine speed (engine speed 5,330 rpm or more)

Approx. 1 s

Improved engine speed stability