| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| E77-3 (IG) - E77-7 (PGND) | G - W-B | Power supply (ECU-IG No. 4 fuse) | Engine switch on (IG) | 11 to 14 V |
| E77-7 (PGND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| E77-8 (PIG) - E77-7 (PGND) | B - W-B | Power supply (VGRS fuse) | Engine switch on (IG) | 11 to 14 V |
| E77-10 (+BI) - E77-7 (PGND) | R - W-B | Power supply (ECU-B1 fuse) | Always | 11 to 14 V |
| E78-1 (BMV) - E77-7 (PGND) | W - W-B | Steering actuator motor signal (V phase) | Engine running | Sine wave |
| E78-2 (BMU) - E77-7 (PGND) | B - W-B | Steering actuator motor signal (U phase) | Engine running | Sine wave |
| E78-3 (BMW) - E77-7 (PGND) | R - W-B | Steering actuator motor signal (W phase) | Engine running | Sine wave |
| E78-6 (SG) - E78-8 (PGD2) | BR - W-B | Steering actuator motor signal shielded ground | Always | Below 1 Ω |
| E78-8 (PGD2) - Body ground | W-B - Body ground | Steering control ECU ground | Always | Below 1 Ω |
| E79-1 (+BO) - E77-7 (PGND) | R - W-B | Steering angle sensor power supply line | Always | 11 to 14 V |
| E79-3 (LV) - E77-7 (PGND) | B - W-B | Power source for steering actuator lock | Engine switch on (IG) | 11 to 14 V |
| E79-4 (S1) - E77-7 (PGND) | R - W-B | Steering actuator motor rotation angle sensor signal | Engine switch on (IG) | Sine wave |
| E79-6 (RV) - E77-7 (PGND) | W- W-B | Steering actuator resolver excitation output voltage | Engine switch on (IG) | Sine wave |
| E79-7 (SIL) - E77-7 (PGND) | R - W-B | Diagnostic communication signal | Engine switch on (IG) | Pulse generation |
| E79-9 (CANH) - E79-20 (CANL) | LG - L | CAN communication | Engine switch on (IG) | Pulse generation |
| E79-10 (SS1-) - E77-7 (PGND) | GR - W-B | Steering angle sensor signal | Engine running and steering wheel turned | Pulse generation |
| E79-12 (LG) - E77-7 (PGND) | Y - W-B | Steering actuator lock ground | Engine running | Pulse generation |
| E79-14 (S2) - E77-7 (PGND) | L - W-B | Steering actuator motor rotation angle sensor signal | Engine switch on (IG) | Sine wave |
| E79-15 (RG) - E77-7 (PGND) | G - W-B | Steering actuator resolver common ground | Always | Below 1 Ω |
| E79-16 (SG2+) - E77-7 (PGND) | Shielded - W-B | Shielded ground wire for steering actuator motor rotation angle sensor signal wire and control signal wire | Engine switch on (IG) | Pulse generation |
| E79-19 (SS1+) - E77-7 (PGND) | L - W-B | Steering angle sensor signal | Engine running and steering wheel turned | 3 to 4 V |
