2007 TOYOTA SIENNA Service Repair Manual

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEMAX–11
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(6) Check the lock-up mechanism.
• Drive in D position (5th gear), at a steady 
speed (lock-up ON).
• Lightly depress the accel

Page 1498 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–12U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
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(d) 2 position test:
Shift into the 2 position and fully depress the 
accelerator pedal and check the following points.
(1) Check u

Page 1499 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE FLUIDAX–123
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AUTOMATIC TRANSAXLE FLUID
ON-VEHICLE INSPECTION
1. CHECK FLUID LEVEL
HINT:
Drive the vehicle so that the engine and transaxle are a

Page 1500 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEMAX–13
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MECHANICAL SYSTEM TESTS
1. PERFORM MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the ove

Page 1501 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–14U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
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(b) Measure the time lag.
(1) When the shift lever is shifted while the engine is 
idling, there will be a certain time lapse or la

Page 1502 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEMAX–15
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HYDRAULIC TEST
1. PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:
• Perform the test at the normal operating ATF 
(

Page 1503 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–16U151E AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
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(9) Disconnect the connector of the transmission 
wire. 
HINT:
Disconnect the connector only when performing 
the D position stall

Page 1504 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–124U151E AUTOMATIC TRANSAXLE  –  PARK / NEUTRAL POSITION SWITCH
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TRANSMISSION
U151E AUTOMATIC TRANSAXLE
PARK / NEUTRAL POSITION SWITCH
COMPONENTS
C126420E01