Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 3 - Transmission Automatic Transmission (Diagnostics) Transmission Control Module (TCM) IO Signal

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Transmission Control Module (TCM) IO Signal


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                      TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
                                                                        AUTOMATIC TRANSMISSION (DIAGNOSTICS)

5. Transmission Control Module (TCM) I/O Signal
A: ELECTRICAL SPECIFICATION




                            to   B55                                                  to   B54



            9 8 7 6 5 4 3 2 1                                        9 8 7 6 5 4 3 2 1
            18 17 16 15 14 13 12 11 10                               18 17 16 15 14 13 12 11 10
            24 23 22          21 20 19                               24 23 22          21 20 19




                                                                                                               AT-00420


                                               Check with ignition switch ON.
                                  Con-                                                                      Resistance
            Content              nector   Terminal No.     Measuring conditions             Voltage (V)      to body
                                  No.                                                                        (ohms)
Back-up power supply              B55          6            Ignition switch OFF               10 -- 13          --
                                  B54         23          Ignition switch ON (with
Ignition power supply                                                                         10 -- 13         --
                                  B54         24                 engine OFF)
                                                          Select lever in "P" range         Less than 1
                "P" range                                 Select lever in any other
                                  B55         23                                                               --
                switch                                   than "P" range (except "N"         More than 8
                                                                   range)
                                                          Select lever in "N" range         Less than 1
                "N" range                                 Select lever in any other
                                  B55         22                                                               --
                switch                                   than "N" range (except "P"         More than 8
                                                                   range)
                                                          Select lever in "R" range         Less than 1
                "R" range
                                  B55         17          Select lever in any other                            --
                switch                                                                      More than 8
                                                               than "R" range
Inhibitor                                                 Select lever in "D" range         Less than 1
switch          "D" range
                                  B55          8          Select lever in any other                            --
                switch                                                                      More than 8
                                                               than "D" range
                                                          Select lever in "3" range         Less than 1
                "3" range
                                  B55         18          Select lever in any other                            --
                switch                                                                      More than 8
                                                               than "3" range
                                                          Select lever in "2" range         Less than 1
                "2" range
                                  B54         10          Select lever in any other                            --
                switch                                                                      More than 8
                                                               than "2" range
                                                          Select lever in "1" range         Less than 1
                "1" range
                                  B54          1          Select lever in any other                            --
                switch                                                                      More than 8
                                                               than "1" range
                                                          Brake pedal depressed.           More than 10.5
Brake switch                      B55         24                                                               --
                                                           Brake pedal released.            Less than 1



                                                   4AT(H4SO)-11
                    TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
AUTOMATIC TRANSMISSION (DIAGNOSTICS)

                                            Check with ignition switch ON.
                               Con-                                                                           Resistance
          Content             nector   Terminal No.     Measuring conditions             Voltage (V)           to body
                               No.                                                                             (ohms)
                                                                Light ON                 Less than 1
AT OIL TEMP warning light      B54          3                                                                     --
                                                                Light OFF                More than 9
Accelerator pedal position                               Throttle fully closed.           0.2 -- 1.0
                               B55          2                                                                     --
sensor                                                    Throttle fully open.            4.2 -- 4.7
Accelerator pedal position                             Ignition switch ON (with
                               B55          1                                             4.8 -- 5.3              --
sensor power supply                                           engine OFF)
                                                        ATF temperature 20



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