A/C CUT-OFF CONTROL OPERATION

Operation

• The A/C cut-off control includes the following: A/C cut-off at wide throttle valve opening angle and A/C cut-off at standing start acceleration.

A/C Cut-off at Wide Throttle Valve Opening Angle

Operation condition

• When the throttle valve opening angle exceeds upper, A/C cut-off is activated for approx. 5 s to improve acceleration performance.

• When the throttle valve opening angle is lower or less, A/C cut-off ends.

• When A/C cut-off at wide throttle valve opening angle ends within approx. 5 s and the throttle valve opening angle exceeds upper again, A/C cut-off is inhibited to prevent deterioration of the A/C function.

A/C Cut-off at Standing Start Acceleration

• When accelerated from a standing start, A/C cut-off is activated.

A/C Cut-off at High ECT

• When the ECT exceeds 110 °C {230°F} during the A/C operation, the A/C relay alternately turns on and off approx. every 10 s to protect the engine and to prevent deterioration of the A/C function.