8. Detect Malfunctioning Part
WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
Check the following.
- Harness connectors E33, F33
- Harness for open or short between ECM and refrigerant pressure sensor
- Repair open circuit or short to ground or short to power in harness or connectors.