Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 2 - Engine Section (H4SO) Engine (Diagnostics) Basic Diagnostic Procedure

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Basic Diagnostic Procedure

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                                 BASIC DIAGNOSTIC PROCEDURE

1. Basic Diagnostic Procedure

                      Step                                           Check                         Yes                    No
1      CHECK ENGINE START FAILURE.                        Does the engine start?            Go to step 2.       Inspection using
       1) Ask the customer when and how the trou-                                                               "Diagnostics for
       ble occurred using the check list for interview.                                                         Engine Start Fail-
       2) Start the engine.                                                                                     Diagnostics for
                                                                                                                Engine Starting
2      CHECK ILLUMINATION OF MALFUNCTION Does malfunction indicator                         Go to step 3.       Inspection using
       INDICATOR LIGHT.                  light illuminate?                                                      "General Diagnos-
                                                                                                                tics Table". 
3      CHECK INDICATION OF DTC ON DISPLAY. Does the Subaru Select Moni-                     Record the DTC. Repair the related
       1) Turn the ignition switch to OFF.            tor or OBD-II general scan tool       Repair the trouble parts.
       2) Connect the Subaru Select Monitor or the indicate DTC?                            cause.  although the mal-
       aru Select Monitor or OBD-II general scan tool                                       Go to step 4.       function indicator
       switch to ON.                                                                                            light    illuminates,
       4) Read the DTC on the Subaru Select Moni-                                                               perform diagnos-
       tor or OBD-II general scan tool.                                                                         tics of malfunction
                                                                                                                indicator light cir-
                                                                                                                cuit or combination
4      PERFORM THE DIAGNOSIS.                             Does the Subaru Select Moni-      Inspect using       Complete the
       1) Perform the clear memory mode.                    indicate DTC?                     cedure with Diag-
       2) Perform the inspection mode.                                                        Code (DTC)".

                               BASIC DIAGNOSTIC PROCEDURE
                                                            ENGINE (DIAGNOSTICS)

When the DTC about automatic transmission is
shown on display, carry out the following basic
check. After that, carry out the replacement or re-
pair 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 


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