Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 eg cip1346p

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DI-122
                                                 DIAGNOSTICS       -   ENGINE
                                                                                                                                      DI6TA-02




    DTC                P1346               VVT Sensor/Camshaft Position Sensor Cir-
                                           cuit Range/Performance Problem (Bank 1)


    DTC                P1351               VVT Sensor/Camshaft Position Sensor Cir-
                                           cuit Range/Performance Problem (Bank 2)

CIRCUIT DESCRIPTION
Refer to DTC P1345, P1350 on page DI-130 .
  DTC No.                       DTC Detection Condition                                                Trouble Area
              Deviation in crankshaft position sensor signal and VVT sensor
   P1346                                                                      S Mechanical system malfunction (Jumping teeth of timing belt,
              (bank 1) signal (2 trip detection logic)
                                                                                belt t t h d)
                                                                                b lt stretched)
              Deviation in crankshaft position sensor signal and VVT sensor
   P1351                                                                      S ECM
              (bank 2) signal (2 trip detection logic)


WIRING DIAGRAM
Refer to DTC P335 on page DI-65 .

INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected. When troubleshooting, it is useful for determining
whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean
or rich, etc. at the time of the malfunction.

   1       Check valve timing (Check for loose and jumping teeth of timing belt) (See page
           EM-16 ).


                                                           NG          Adjust valve timing (Repair or replace timing
                                                                       belt).


   OK



  Check and replace ECM (See page IN-31 ).




2001 SIENNA (RM787U)

                                                                                 Author :                    Date :                     276

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