Subaru 2009 IMPREZA Service Manual page 1289

ENGINE (DIAGNOSTICS)
17.Diagnostics for Engine Starting Failure
A: PROCEDURE
1. Check for fuel amount.
2. Inspection of starter motor circuit. <Ref. to EN(H4DOTC)(diag)-69, STARTER MOTOR CIRCUIT, Diagnostics for Engine Start-
ing Failure.>
3. Inspection of ECM power supply and ground line. <Ref. to EN(H4DOTC)(diag)-73, 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(H4DOTC)(diag)-75, IGNITION CONTROL SYSTEM, Diagnostics for Engine
Starting Failure.>
5. Inspection of fuel pump circuit. <Ref. to EN(H4DOTC)(diag)-78, FUEL PUMP CIRCUIT, Diagnostics for Engine Starting Fail-
ure.>
6. Inspection of fuel injector circuit. <Ref. to EN(H4DOTC)(diag)-79, FUEL INJECTOR CIRCUIT, Diagnostics for Engine Starting
Failure.>
Diagnostics for Engine Starting Failure
EN(H4DOTC)(diag)-68