Subaru Legacy 2003 Service Manual page 1890

DIAGNOSTICS FOR ENGINE STARTING FAILURE
15.Diagnostics for Engine Starting Failure
A: PROCEDURE
1. Inspection of starter motor circuit. <Ref. to EN(H4DOSTC)-52, STARTER MOTOR CIRCUIT, Diagnostics for Engine Starting
Failure.>
2. Inspection of ECM power supply and ground line. <Ref. to EN(H4DOSTC)-56, CONTROL MODULE POWER SUPPLY AND
GROUND LINE, Diagnostics for Engine Starting Failure.>
3. Inspection of fuel pump circuit. <Ref. to EN(H4DOSTC)-60, FUEL PUMP CIRCUIT, Diagnostics for Engine Starting Failure.>
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EN(H4DOSTC)-51
ENGINE (DIAGNOSTICS)