Subaru Legacy 2004 Service Manual page 483

16.Diagnostics for Engine Starting Failure
A: PROCEDURE
1. Check for fuel amount.
2. Inspection of starter motor circuit. <Ref. to EN(H4SO 2.0)(diag)-52, STARTER MOTOR CIRCUIT, Diagnostics for Engine Start-
ing Failure.>
3. Inspection of ECM power supply and ground line. <Ref. to EN(H4SO 2.0)(diag)-55, CHECK POWER SUPPLY AND GROUND
LINE OF ENGINE CONTROL MODULE (ECM), Diagnostics for Engine Starting Failure.>
4. Inspection of ignition control system. <Ref. to EN(H4SO 2.0)(diag)-58, IGNITION CONTROL SYSTEM, Diagnostics for Engine
Starting Failure.>
5. Inspection of fuel pump circuit. <Ref. to EN(H4SO 2.0)(diag)-61, FUEL PUMP CIRCUIT, Diagnostics for Engine Starting Fail-
ure.>
6. Inspection of fuel injector circuit. <Ref. to EN(H4SO 2.0)(diag)-64, FUEL INJECTOR CIRCUIT, Diagnostics for Engine Starting
Failure.>
Diagnostics for Engine Starting Failure
EN(H4SO 2.0)(diag)-51
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ENGINE (DIAGNOSTICS)