Component Inspection
- IG 'OFF'.
- Connect prove to signal terminal as below and select 'Oscilloscope' menu on GDS.
Channel A (+): Signal terminal of A/C pressure sensor, (-): Ground.
- Engine start and check the signal with operation.
- Is waveform within specification?
YES
Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
Check A/C pressure sensor for contamination, deterioration, or damage. Substitute with a known-good A/C pressure sensor and check for proper operation. If the problem is corrected, replace A/C pressure sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.