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X33 - Check PCM

- Key "OFF".

- AC Pressure Switch (ACPSW) disconnected.

- Key "ON" engine "OFF".

Air Conditioning Pressure Switch:

- Measure voltage between the ACPSW circuit at the ACPSW vehicle harness connector and the battery negative post.

- Key "OFF".

- Was voltage greater than 4.0 volts?

Yes -- Replace Constant Control Relay Module (CCRM). Reconnect all components. Re-evaluate symptom.

No -- Go to X34. X34 - Check ACPSW Circuit For Short to Ground