Engine Start Signal

This signal is sent from starter circuit to ECM terminal B11 (terminal C1 on Swift DOHC or A1 on Swift SOHC). On Samurai and Sidekick, ECM uses signal to determine whether engine is cranking, to control fuel injection timing, injection time, Idle Speed Control (ISC) solenoid operation, throttle opener vacuum switching valve operation, and mixture heater operation (Sidekick A/T). On Swift DOHC, ECM uses this signal to determine whether engine is cranking and to control ignition timing. On Swift SOHC, ECM uses this signal to determine whether engine is cranking and to control fuel injector and fuel pump relay.