Check A/C pressure sensor
WARNING: This page is about a different variant/trim than selected.
- IG "OFF". Connect the GDS.
- Connect the probe to A/C pressure sensor signal and select the oscilloscope in the menu.
- Check the waveform while turning A/C switch "ON" and "OFF" with engine running "ON" and "OFF".
- Is the measured waveform of A/C pressure sensor normal?
YES
- Substitute with a known - good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- 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 go to "VERIFICATION OF VEHICLE REPAIR " procedure.