Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 ax cip0773

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                                                                                                                                   DI-187
                                                 DIAGNOSTICS       -   AUTOMATIC TRANSAXLE
                                                                                                                                    DI0CV-14




    DTC                 P0773              Shift Solenoid E Electrical Malfunction
                                           (Shift Solenoid Valve SL)

CIRCUIT DESCRIPTION
The shift solenoid valve SL is turned ON and OFF by signals from the ECM to control the hydraulic pressure
acting on the lock-up relay valve, which then controls operation of the lock-up clutch.
Fail safe function:
If the ECM detects a malfunction, it turns the shift solenoid valve SL OFF.
  DTC No.                       DTC Detecting Condition                                                 Trouble Area
              Either (a) or (b) is detected for 1 time.
              (2-trip detection logic)
                                                                              S Open or short in shift solenoid valve SL circuit
              (a) Solenoid resistance is 8  or less when solenoid is ener-
   P0773                                                                      S Shift solenoid valve SL
              gized.
                                                                              S ECM
              (b) Solenoid resistance is 100 k or more when solenoid is not
              energized.


WIRING DIAGRAM
            Transaxle                                                                                                   ECM



     Shift Solenoid Valve SL
                                                              5                                       15
                                   1         P-L                                  P-L                         SL
                                                             IH1                                     E10




                                                                                                                                    D07890




2001 SIENNA (RM787U)

                                                                               Author :                      Date :                 341
DI-188
                                   DIAGNOSTICS   -   AUTOMATIC TRANSAXLE

INSPECTION PROCEDURE

   1      Measure resistance between terminal SL of ECM and body ground.

                                        PREPARATION:
                                        Disconnect the connector from ECM.
                                        CHECK:
                                        Measure resistance between terminal SL of ECM and body
                                        ground.
                                        OK:
                         SL                  Resistance: 11 - 15  at 20 

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