Component Inspection
■ Check A/C pressure sensor
1.

IG "OFF" and connect the GDS.

2.

Connect the probe to A/C pressure sensor signal and select the oscilloscope in the menu.

3.

Check the waveform with turning on and off a/c switch after engine start.

Specification : Refer to Signal Waveform & Data

4.

Is the measured waveform of A/C pressure sensor normal?

▶ Substitute with a known - good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/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.

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