Toyota Sienna Service Manual: How to proceed with troubleshooting
Hint:
- The ecm of this system is connected to the can and multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the can and multiplex communication systems
- The intelligent tester can be used at steps 3, 4, 6, and 9.
1 Vehicle brought to workshop
2 Customer problem analysis
3 Connect the obd ii scan tool or intelligent tester to dlc3
4 Check and clear dtcs and freeze frame data
Hint: (see page ax-27).
5 Visual inspection
6 Setting the Check Mode Diagnosis
HINT: (See page AX-28).
7 Problem Symptom Confirmation
HINT: (See page AX-9).
8 Symptom Simulation
HINT: (See page IN-35).
9 DTC Check
HINT: (See page AX-27).
10 Basic Inspection
HINT: (See page AX-127, AX-123 and AX-148).
11 Mechanical System Test
HINT: (See page AX-12).
12 Hydraulic Test
HINT: (See page AX-14).
13 Manual Shifting Test
HINT: (See page AX-15).
14 Problem Symptoms Table Chapter 1
HINT: (See page AX-19).
15 Problem Symptoms Table Chapter 2
HINT: (See page AX-19).
16 Part Inspection
17 DTC Chart
HINT: (See page AX-35).
18 Circuit Inspection
19 Repair or Replace
20 Confirmation Test
End
System description
1. SYSTEM DESCRIPTION
(a) The ECT (Electronic controlled automatic
transmission/transaxle) is an automatic
transmission/transaxle that electronically controls
shift timing using the ECM. The ECM d ...
Road test
1. PROBLEM SYMPTOM CONFIRMATION
(a) Based on the result of the customer problem
analysis, try to reproduce the symptoms. If the
problem is that the transaxle does not shift up, shift
down, or the ...
Other materials:
Folding down the third seats (manual seats)
Before folding the third seats
Fold the outside head
restraints and lower the center
head restraint to the lowest
position , and
stow the seat belt buckles.
Stow the center seat belt.
Folding down the third seatbacks
Pull the “TO FOLD/LIFT SEATBACK”
strap a
Return ...
How to proceed with troubleshooting
HINT:
Use the following procedures to troubleshoot the tire
pressure warning system.
*: Use the intelligent tester.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer to confirm the trouble.
HINT:
It is important to collect as much specific informat ...
Installation
1. Install speed sensor (nc sensor)
(a) Coat the O-ring with ATF.
(b) Install the speed sensor with the bolt.
Torque: 11 N*m (115 kgf*cm, 8 ft.*lbf)
HINT:
Make sure to install the same manufacturer's
sensor.
(c) Connect the speed sensor connector.
2. INSTALL SPEED SENSOR (NT SENSOR)
...
