BF135A•BF150A Yes Replace or repair the wire harness (Short cir- cuit in the wire harness between the ignition coil and the ECM). Yes Replace the ignition coil. 2-27 From P. 2-26 Check for short circuit in the ignition coil’s signal line. 1 Turn the ignition switch OFF. Check for continuity between the No. 1 (Blue, Blue/Black, White/Green, Blue/Red) ter- minal of the respective harness side 3P connectors and the engine ground. No. 1 ignition coil: Blue No. 2 ignition coil: Blue/Black No. 3 ignition coil: White/Green No. 4 ignition coil: Blue/Red Ignition coil harness side 3P connector Viewing from terminal side Is there continuity? N o Replace the ignition coil and recheck.
Does the engine start? N o Substitute a known-good ECM and recheck.