A/C Signal: Description and Operation

A/C Cut-Off System:

In order to maintain good driveability with the air conditioning system in operation, the ECU will initiate A/C cut-off under certain driving conditions by de-energizing the A/C clutch relay. The system acts to improve idle smoothness just after starting and to maintain acceleration performance.

A/C cut-off operates for approximately 10 seconds after engine start with the A/C switch "ON."

On acceleration, A/C cut-off operates for approximately 5 seconds under these conditions:

^ A/C switch "ON."
^ Transmission in gear and clutch released (M/T).
^ Transmission not in "P" or "N" range (A/T).
^ Throttle opening angle more than 50° (more than half throttle).