Aptiv OCS Connectors
From YourSpec Automotive Wiring Wiki

The Aptiv OCS family of connectors is manufactured by Aptiv and is commonly used by GM vehicles.
The Aptiv OCS family consists of several series:
- Aptiv OCS 1.5 Sealed Series
- Aptiv OCS 1.5 Unsealed Series
- Aptiv OCS 1.2 Sealed Series
- Aptiv OCS 1.2 Unsealed Series
- Aptiv OCS 0.64 Sealed Series
- Aptiv OCS 0.64 Unsealed Series
- Aptiv OCS Mixed Series