Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 2 - Engine Section (H4DOTC) ENGINE (DIAGNOSTICS) Diagnostics for Engine Starting Failure
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DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
16.Diagnostics for Engine Starting Failure
A: PROCEDURE
1. Check the fuel level.
2. Inspection of starter motor circuit.
3. Inspection of ECM power supply and ground line.
4. Inspection of ignition control system.
5. Inspection of fuel pump circuit.
6. Inspection of fuel injector circuit.
EN(H4DOTC)-56
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
B: STARTER MOTOR CIRCUIT
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
IGNITION
SWITCH
BATTERY
SBF-4 SBF-1
1
3
B72
*1 : WITH SECURITY SYSTEM
*2 : WITHOUT SECURITY SYSTEM
INTERRUPT *3 : AT MODEL
RELAY
*4 : MT MODEL
2
6
*2 *1 2
6
1
B59 *2 *1 4
B59
TO SECURITY SYSTEM
INHIBITOR SWITCH
P R N D 3 2 1
3
* 12 12
11 7
*4
B12 T3 T7
STARTER
INTERLOCK RELAY (MT)
STARTER
*3
28 MOTOR
27
26
*4
24 B14
B225
CLUTCH SWITCH (MT)
8
2
1
B106
B137 ECM
B106 B72 B225 B59 T7 B12 B137
1 1 2 1 2 1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 7
1 2 3
2 3 4 7 8 9 10 11 12 5 6 7 8 8 9 10 11 12 13 14 15 16 17
3 4 9 14 15 16 19 24 25 26 29 34 35 36 4 5 6 9 10 11 12 18 19 20 21 22 23 24 25
10 17 20 27 30 37
5 6 26 27 28 29 30 31
11 12 13 18 21 22 23 28 31 32 33 38
7 8
EN-02015
EN(H4DOTC)-57
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
Step Check Yes No
1 CHECK BATTERY. Is the voltage more than 12 V? Go to step 2. Charge or replace
Check the battery voltage. the battery.
2 CHECK OPERATION OF STARTER MOTOR. Does the starter motor oper- Check the power Go to step 3.
ate? supply and ground
line for ECM.
3 CHECK INPUT SIGNAL FOR STARTER MO- Is the voltage more than 10 V? Go to step 4. Go to step 5.
TOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from starter
motor.
3) Turn the ignition switch to ST.
4) Measure the power supply voltage between
starter motor connector terminal and engine
ground.
Connector & terminal
(B14) No. 1 (+) -- Engine ground (-):
NOTE:
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