| A/C input | 1.5 mm² | A/C Compressor Controls 1 | C211 1 |
| A/C input | 1.0 mm² | C211 1 | Motronic Control Unit 40 |
| Closed throttle | 0.5 mm² | Motronic Control Unit 52 | Throttle Switch 1 |
| Coolant temp | 0.5 mm² | Motronic Control Unit 45 | Coolant Temperature Sensor 1 |
| Diag 16 | 1.5 mm² | S702 L | Diagnostic Connector 16 |
| ECU ground | 2.5 mm² | Motronic Control Unit 2 | G103 GND |
| ECU ground | 2.5 mm² | Motronic Control Unit 14 | G103 GND |
| ECU ground | 1.5 mm² | Motronic Control Unit 24 | G103 GND |
| Heater control | 0.5 mm² | Oxygen Sensor Heater Relay 85 | Motronic Control Unit 23 |
| O2 heater | 1.0 mm² | Oxygen Sensor Heater Relay 87 | S703 T |
| O2 heater | 1.0 mm² | S703 R | To Oxygen Sensor (link G) G |
| O2 relay feed | 1.5 mm² | Power Distribution Box 9 | C101 6 |
| O2 relay feed | 2.5 mm² | C101 6 | S702 T |
| Relay 30 | 2.5 mm² | S702 B | Oxygen Sensor Heater Relay 30 |
| Relay coil + | 0.5 mm² | Oxygen Sensor Heater Relay 30 | Oxygen Sensor Heater Relay 86 |
| Sensor ground | 0.5 mm² | Coolant Temperature Sensor 2 | S701 T |
| Sensor ground | 1.5 mm² | S701 L | G103 GND |
| Speed signal | 0.5 mm² | Motronic Control Unit 29 | C135 (not used) C135 |
| Switch ground | 0.5 mm² | Throttle Switch 2 | S701 R |
| WOT | 0.5 mm² | Motronic Control Unit 53 | Throttle Switch 3 |