Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Legacy 2000-2003 Approved Subaru Legacy 2000 2000 Service Manual ENGINE SECTION On Board Diagnostics II System MSA5TCD00L16706

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MSA5TCD00L16706


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2-7   [T2A1]                           DIAGNOSTICS
2. Electrical Components Location


2. Electrical Components Location
A: ENGINE (MT VEHICLES)
1. MODULE




                                                                     B2M3717A


(1) Engine control module (ECM)       (3) Test mode connector
(2) Data link connector (for Subaru   (4) CHECK ENGINE malfunction
    Select Monitor and OBD-II gen-        indicator lamp (MIL)
    eral scan tool)




                                                     4
DIAGNOSTICS                           [T2A1] 2-7
                  2. Electrical Components Location




   B3M1575A                              B2M2960E




   B2M2238D                              B2M3701A




              5
2-7   [T2A2]                           DIAGNOSTICS
2. Electrical Components Location


2. SENSOR




                                                                                                       B2M3441A


(1) Engine coolant temperature sen-   (3) Throttle position sensor          (6) Camshaft position sensor
    sor                               (4) Intake manifold pressure sensor   (7) Crankshaft position sensor
(2) Intake air temperature sensor     (5) Knock sensor




                                                       6
DIAGNOSTICS                           [T2A2] 2-7
                  2. Electrical Components Location




   S2M1248A                              B2M2250A




   B2M2251A                              B2M3702A




   B2M2241A                              B2M2242A




   B2M0213J




              7
2-7   [T2A2]                         DIAGNOSTICS
2. Electrical Components Location




                                                                     B2M3703A


(1) Front oxygen (A/F) sensor       (3) Front catalytic converter
(2) Rear oxygen sensor              (4) Rear catalytic converter




                                            B2M2253A                OBD0019I




                                            OBD0524G                OBD0525G




                                                       8
                               DIAGNOSTICS                                        [T2A2] 2-7
                                                              2. Electrical Components Location




                                                                                      B2M3717B


(1) Fuel level sensor         (3) Fuel tank pressure sensor
(2) Fuel temperature sensor   (4) Fuel sub level sensor




                                      B2M3704A                                       B2M3705A




                                      B2M3820A                                       B2M3706A




                                                 9
2-7   [T2A3]                         DIAGNOSTICS
2. Electrical Components Location


3. SOLENOID VALVE, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM
PARTS




                                                                                                    B2M3441B


(1) Purge control solenoid valve    (2) Ignition coil & ignitor ASSY   (3) Idle air control solenoid valve




                                                     10
DIAGNOSTICS                            [T2A3] 2-7
                   2. Electrical Components Location




   B2M2254A                               B2M2255A




   B2M2256B




              11
2-7   [T2A3]                           DIAGNOSTICS
2. Electrical Components Location




                                                              B2M3717C


(1) Pressure control solenoid valve   (3) Drain valve
(2) Canister                          (4) Drain filter




                                              B2M3708A        B2M1809A




                                              B2M1810A        B2M1811A




                                                         12
        DIAGNOSTICS                       [T2A3] 2-7
                      2. Electrical Components Location


MEMO:




               13
2-7   [T2A3]                         DIAGNOSTICS
2. Electrical Components Location




                                                                                               B2M3717D


(1) Fuel pump                       (3) Fuel pump relay           (5) Radiator sub fan relay
(2) Main relay                      (4) Radiator main fan relay   (6) Starter




                                                    14
DIAGNOSTICS                            [T2A3] 2-7
                   2. Electrical Components Location




   B2M3704B                               B2M3709A




   B2M3710A                                B2M3711A




   B2M2247D




              15
2-7   [T2B1]                           DIAGNOSTICS
2. Electrical Components Location


B: ENGINE (AT VEHICLES)
1. MODULE




                                                                      B2M3717A


(1) Engine control module (ECM)       (3) Test mode connector
(2) Data link connector (for Subaru   (4) CHECK ENGINE malfunction
    Select Monitor and OBD-II gen-        indicator lamp (MIL)
    eral scan tool)




                                             B3M1575A                B2M2960E




                                             B2M2238D                B2M3701A




                                                        16
        DIAGNOSTICS                       [T2B1] 2-7
                      2. Electrical Components Location


MEMO:




               17
2-7   [T2B2]                            DIAGNOSTICS
2. Electrical Components Location


2. SENSOR




                                                                                                        B2M3427A


(1) Atmospheric pressure sensor        (3) Engine coolant temperature sen-   (5) Knock sensor
(2) Intake air temperature and pres-       sor                               (6) Camshaft position sensor
    sure sensor                        (4) Throttle position sensor          (7) Crankshaft position sensor




                                                       18
DIAGNOSTICS                        [T2B2] 2-7
               2. Electrical Components Location




   B2M3713A                           B2M3714A




   S2M1248B                           B2M2240A




   B2M2241A                           B2M2242A




   B2M0213J




          19
2-7   [T2B2]                         DIAGNOSTICS
2. Electrical Components Location




                                                                     B2M3703A


(1) Front oxygen (A/F) sensor       (3) Front catalytic converter
(2) Rear oxygen sensor              (4) Rear catalytic converter




                                            S2M0264A                OBD0019I




                                            OBD0524G                OBD0525G




                                                       20
                               DIAGNOSTICS                                        [T2B2] 2-7
                                                              2. Electrical Components Location




                                                                                      B2M3717B


(1) Fuel level sensor         (3) Fuel tank pressure sensor
(2) Fuel temperature sensor   (4) Fuel sub level sensor




                                      B2M3704A                                       B2M3705A




                                      B2M3820A                                       B2M3706A




                                              21
2-7   [T2B3]                              DIAGNOSTICS
2. Electrical Components Location


3. SOLENOID VALVE, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM
PARTS




                                                                            B2M3427B


(1) Air assist injector solenoid valve   (3) Purge control solenoid valve
(2) Idle air control solenoid valve      (4) Ignition coil & ignitor ASSY




                                                         22
DIAGNOSTICS                        [T2B3] 2-7
               2. Electrical Components Location




   B2M3715A                           H2M3259A




   H2M3258B                           B2M3720A




          23
2-7   [T2B3]                           DIAGNOSTICS
2. Electrical Components Location




                                                             B2M3717C


(1) Pressure control solenoid valve   (3) Drain valve
(2) Canister                          (4) Air filter




                                              B2M3708A       B2M1809A




                                              B2M1810A       B2M1811A




                                                        24
        DIAGNOSTICS                       [T2B3] 2-7
                      2. Electrical Components Location


MEMO:




               25
2-7   [T2B3]                         DIAGNOSTICS
2. Electrical Components Location




                                                                                B2M3717J


(1) Inhibitor switch                (4) Fuel pump relay           (7) Starter
(2) Fuel pump                       (5) Radiator main fan relay
(3) Main relay                      (6) Radiator sub fan relay




                                                    26
DIAGNOSTICS                            [T2B3] 2-7
                   2. Electrical Components Location




   B2M2246A                               B2M3704C




   B2M3709B                               B2M3710B




   B2M3711B                               B2M2247E




              27
2-7   [T2C1]                         DIAGNOSTICS
2. Electrical Components Location


C: TRANSMISSION
1. MODULE




                                                                              B2M3717K


(1) Transmission Control Module     (2) AT diagnostic indicator light (for
    (TCM) (for AT vehicles)             AT vehicles)




                                             B3M1666D                        B2M3701B




                                                      28
                                               DIAGNOSTICS                            [T2C2] 2-7
                                                                  2. Electrical Components Location


2. SENSOR




                                                  B2M2258A                               B2M2259A




                                                  B2M2260A                               B2M2261A




                                                  OBD0653B

(1) Vehicle speed sensor 1 (for AT vehicles)
(2) Vehicle speed sensor 2 (for MT vehicles)
(3) Vehicle speed sensor 2 (for AT vehicles)
(4) Torque converter turbine speed sensor
(5) ATF temperature sensor (for AT vehicles)
(6) Brake light switch




                                                             29
2-7   [T2C3]                           DIAGNOSTICS
2. Electrical Components Location


3. SOLENOID VALVE AND RELAY



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