Compressor Shut Off Signal
COMPRESSOR SHUT OFF SIGNAL (if applicable)
The IHKA module monitors the full load input from the ECM. It the ECM detects "full load" conditions, it signals (KOREL) the IHKA control module to disengage the A/C compressor. The conditions for full load are:
- Vehicle speed less than 10 mph, and
- Throttle is wide open or
- Engine coolant temperature is too high
The compressor is turned off for a maximum of 4 minutes (actual duration differs per system).