Relay 1 · Engine Compartment
| Relay | 1 |
| Location | Engine Compartment |
| Years | 1978–1980 |
| Vehicles | 911SC |
| Confidence | Factory Verified |
Source: Porsche Technical Specifications, WKD 422 720 (911 SC/Turbo 3.3, 78-81 Models), page 99 (Fuse and Relay Chart for 911 SC, 1978-80 Models)