A/C Cut-off Control System Inspection
WARNING: This page is about a different car, the 2014 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, perform the symptom troubleshooting "NO. 23 A/C DOES NOT WORK SUFFICIENTLY". (See 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 the following:
- A/C relay (See RELAY INSPECTION .)
- Open or short to ground in wiring harness and connectors (Front body control module (FBCM)-A/C relay-PCM terminal 2AF)
- A/C related parts
- APP1, APP2 PIDs (See PCM INSPECTION .)
- If it actuates, inspect the following:
RELATED PIDS SPECIFICATION
| Item (definition) | Unit/Condition | Definition | Condition/Specification (Reference) |
|---|---|---|---|
| APP1 | % | APP sensor No. 1 |
|
| V |
|
||
| APP2 | % | APP sensor No. 2 |
|
| V |
|