Power Circuits (C70, S70 & V70)

Check fuse 11 B/3 in main fuse box. See Figure. If the fuse is blown, check the circuit after the fuse for a short-circuit to ground. Repair as necessary. Check fuse 11B/1 in main fuse box. If the fuse is blown check the circuit after the fuse for a short-circuit to ground. Repair as necessary. Check power supply to ECM terminals A70 and B11. See PIN VOLTAGE CHARTS article. Voltage should be approximately battery voltage.