Power Source Circuit

Turn ignition switch off. Disconnect ECU connectors. Ensure battery voltage exists between and ECU connector "B" terminal No. 11 (Red wire) and ECU connector T3 terminal No. 4 (Black/White wire). Ensure battery voltage exists between and ECU connector T3 terminal No. 1 (Red wire) and ECU connector T3 terminal No. 4 (Black/White wire). If battery voltage is present, go to CIRCUIT GROUND. If battery voltage is not present, repair open in harness or connectors as necessary.