Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2003 `03 for3_sec1_11_1

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ENGINE (DIAGNOSTICS)

                                         EN(SOHC)
                                                                                                                     Page
         1.   Basic Diagnostic Procedure ........................................................................2
         2.   Check List for Interview...............................................................................4
         3.   General Description ....................................................................................6
         4.   Electrical Components Location..................................................................9
         5.   Engine Control Module (ECM) I/O Signal .................................................22
         6.   Engine Condition Data ..............................................................................25
         7.   Transmission Control Module (TCM) I/O Signal .......................................26
         8.   Data Link Connector .................................................................................29
         9.   OBD-II General Scan Tool ........................................................................30
        10.   Subaru Select Monitor...............................................................................32
        11.   Read Diagnostic Trouble Code .................................................................39
        12.   Inspection Mode........................................................................................40
        13.   Drive Cycle................................................................................................45
        14.   Clear Memory Mode..................................................................................47
        15.   Compulsory Valve Operation Check Mode ...............................................48
        16.   Engine Malfunction Indicator Lamp (MIL) .................................................50
        17.   Diagnostics for Engine Starting Failure.....................................................60
        18.   List of Diagnostic Trouble Code (DTC) .....................................................75
        19.   Diagnostic Procedure with Diagnostic Trouble Code (DTC) .....................81
        20.   General Diagnostic Table........................................................................261
                               BASIC DIAGNOSTIC PROCEDURE
ENGINE (DIAGNOSTICS)

1. Basic Diagnostic Procedure
A: PROCEDURE
1. ENGINE

                       Step                                       Check              Yes                    No
1      CHECK ENGINE START FAILURE.                    Engine starts.          Go to step 2.        Inspection using
       1)Ask the customer when and how the trouble                                                 "Diagnostics for
       occurred using the interview check list.                                                                                       EN(SOHC)-60,
       2)Start the engine.                                                                         Diagnostics for
       Does the engine start?                                                                      Engine Starting
                                                                                                   Failure.>
2      CHECK ILLUMINATION OF CHECK ENGINE CHECK ENGINE malfunction            Go to step 3.        Inspection using
       MALFUNCTION INDICATOR LAMP (MIL).       indicator light illuminates.                        "General Diagnos-
       Does CHECK ENGINE malfunction indicator                                                     tics Table". 
3      CHECK INDICATION OF DTC ON DISPLAY. DTC is indicated.                  Record the diag-     Repair the related
       1)Turn the ignition switch to OFF.                                     nostic trouble       parts.
       2)Connect the Subaru Select Monitor or the                             code. Repair the     NOTE:
       OBD-II general scan tool to data link connec-                          trouble cause.       If DTC is not
       tor.                                                                    Go to        MIL (CHECK EN-
       or OBD-II general scan tool.                                           step 4.              GINE malfunction
       Does the Subaru Select Monitor or OBD-II                                                    indicator lamp) cir-
       general scan tool indicate DTC?                                                             cuit or combination
                                                                                                   meter. 
4      PERFORM THE DIAGNOSIS.                       DTC is indicated.         Inspect using        Complete the
       1)Perform the clear memory mode.                                        cedure with Diag-
       2)Perform the inspection mode.                                          Code (DTC)".
       Does the Subaru Select Monitor or OBD-II                               




                                                   EN(SOHC)-2
                               BASIC DIAGNOSTIC PROCEDURE
                                                            ENGINE (DIAGNOSTICS)

2. AUTOMATIC TRANSMISSION
When the trouble code about automatic transmis-
sion is shown on display, carry out the following ba-
sic check. After that, carry out the replacement or
repair work.
1) ATF level check 
2) Differential gear oil level check 
3) ATF leak check 
4) Differential gear oil leak check 
5) Stall test 
6) Line pressure test 
7) Transfer clutch pressure test 
8) Time lag test 
9) Road test 
10) Shift characteristics 




                                               EN(SOHC)-3
                                 CHECK LIST FOR INTERVIEW
ENGINE (DIAGNOSTICS)

2. Check List for Interview
A: CHECK
1. CHECK LIST NO. 1
Check the following items when problem has occurred.
NOTE:
Use copies of this page for interviewing customers.
Customer's name                                             Engine no.
Date of sale                                                Fuel brand
Date of repair                                              Odometer reading                km
Vin no.                                                                                   miles
Weather                  Fine
                         Cloudy
                         Rainy
                         Snowy
                         Various/Others:
Outdoor temperature                               



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