A/C Cut-off Control System Inspection

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Start the engine.
Turn the A/C switch and fan switch on.
Verify that the A/C compressor magnetic clutch actuates.
- If it does not actuate, go to symptom troubleshooting "NO. 23 A/C DOES NOT WORK SUFFICIENTLY ".
Fully open the throttle valve and verify that the A/C compressor magnetic clutch does not actuate for 2-5 s.
- If it actuates, inspect as follows:
  - A/C relay
  - Open or short to GND circuit in wiring harness and connectors (Ignition switch - A/C relay - PCM terminal 47^*1 , 4O^*2 )
  - A/C related parts
  - APP1, APP2 PIDs

*1: California emission regulation applicable ATX model

*2: Except for California emission regulation applicable ATX model