Esteem GLX Wagon Plus L4-1.6L (1998)
Fuel Pump Relay: Description and Operation
FUEL PUMP CONTROL SYSTEM
ECM controls ON/OFF operation of the fuel pump by turning it ON via the fuel pump relay under any of the following conditions.
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For 2 seconds after ignition switch ON.
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While cranking engine (while engine start signal is inputted to ECM).
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While crankshaft position sensor (CKP sensor) signal is inputted to ECM.
