2007 TOYOTA SIENNA Service Repair Manual

Page 1697 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–14U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
AX
(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 1698 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEMAX–15
AX
HYDRAULIC TEST
1. PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:
• Perform the test at the normal operating ATF 
(

Page 1699 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–16U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
AX
(9) Disconnect the connector of the transmission 
wire. 
HINT:
Disconnect the connector only when performing 
the D position stall

Page 1700 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEMAX–17
AX
MANUAL SHIFTING TEST
1. PERFORM MANUAL SHIFTING TEST
HINT:
• With this test, it can be determined whether the 
trouble occurs in

Page 1701 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–18U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
AX
INITIALIZATION
1. RESET MEMORY
NOTICE:
• Perform the RESET MEMORY (AT initialization) 
when replacing the automatic transaxle ass

Page 1702 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEMAX–19
AX
G023367

Page 1703 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–20U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEM
AX
MONITOR DRIVE PATTERN
1. MONITOR DRIVE PATTERN FOR ECT TEST
(a) Perform this drive pattern as one method to 
simulate the detection

Page 1704 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  AUTOMATIC TRANSAXLE SYSTEMAX–21
AX
HINT:
*1: Drive at such a speed in the uppermost gear, to 
engage lock-up. The vehicle can be driven at a 
speed lower than that in