Signal Too Low. Intermittent Fault

Checking Cables And Terminals
- Check A/C pressure sensor and engine control module (ECM) connectors for loose connections, contact resistance and oxidation. Check cable between A/C pressure sensor terminal 3 and engine control module # B29 for an intermittent open-circuit and intermittent short-circuit to ground. Check cable between A/C pressure sensor terminal 2 and engine control module # B9 for an intermittent short-circuit to ground.

Then continue with:
^ Proceed to test step below.

Fault-tracing Information
For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.