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".
Pressure (KPa) | 101.4 (14.7 psi) | 390.9 (57 psi) | 1723.7 (250 psi) | 3031.6 (439 psi) | 3206.1 (465 psi) |
Voltage(V) | 1 | 2 | 3 | 4 | 4.5 |
Is the measured waveform of A/C pressure sensor normal?
![]() | ▶ Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ 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. |