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DI-192
                                                 DIAGNOSTICS       -    AUTOMATIC TRANSMISSION
                                                                                                                                  DI0SX-20




    DTC               P0773                Shift Solenoid "E" Electrical

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.
  DTC No.                       DTC Detecting Condition                                                Trouble Area
             Either 1. or 2. is detected for 1 time
             (2 - trip detection logic).
                                                                             S Open or short in shift solenoid valve SL circuit
             1. Solenoid resistance is 8  or less (short circuit) when the
   P0773                                                                     S Shift solenoid valve SL
                 solenoid is energized.
                                                                             S ECM
             2. Solenoid resistance is 100 k or more (open circuit) when
                 the solenoid is not energized.

Fail safe function
If the ECM detects a malfunction, it turns the shift solenoid valve SL OFF.
HINT:
Check the shift solenoid valve SL when DTC P0773 (Shift Solenoid "E" Electrical) is output.

WIRING DIAGRAM

                                                                                                      ECM
                           Transmission

                                                                                                             B+

                         Solenoid Valve SL
                                                                                         1
                                                     7                 LG                        SL
                                                                                        E9




                                                                                                                                  D10506




2002 4RUNNER (RM887U)

                                                                                Author :                      Date :                368
                                                                                          DI-193
                                DIAGNOSTICS   -   AUTOMATIC TRANSMISSION

INSPECTION PROCEDURE

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

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

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