Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT: *: Use the intelligent tester.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
- Confirm problem symptoms
3 CHECK MULTIPLEX COMMUNICATION SYSTEM*
- Check if the multiplex communication system DTC is output.
HINT: The center airbag sensor assembly of this system is connected to the multiplex communication system.
Therefore, before starting troubleshooting, make sure to check that there is no trouble in the multiplex communication system.
Result:
4 CHECK CAN COMMUNICATION SYSTEM
- Use the intelligent tester to check if the CAN communication system is functioning normally .
HINT: The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.
Result:
5 SRS WARNING LIGHT CHECK
- Proceed to Diagnosis System
6 CHECK FOR DTC*
- Proceed to DTC Check / Clear.
Result:
7 DIAGNOSTIC TROUBLE CODE CHART
- Proceed to Diagnostic Trouble Code Chart
8 SYMPTOM SIMULATION
- Proceed to Diagnosis System
9 PROBLEM SYMPTOMS TABLE
- Proceed to Problem Symptoms Table
10 CIRCUIT INSPECTION*
11 IDENTIFICATION OF PROBLEM
12 REPAIR OR REPLACEMENT
13 CONFIRMATION TEST
END
System description
1. GENERAL
In conjunction with impact absorbing structure for a
frontal collision, the SRS (Supplemental Restraint
System) driver airbag and front passenger airbag
were designed to sup ...
Problem symptoms table
HINT:
Proceed to the troubleshooting for each circuit in the table
below.
AIRBAG SYSTEM
Symptom
Suspected Area
The SRS warning light goes off after the primary
check, ...
Other materials:
Reassembly
1. INSTALL BACK DOOR STOPPER LOWER
Install the 2 stoppers with the 4 bolts.
Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf)
2. INSTALL BACK DOOR BASE STOPPER BRACKET
Install the 2 brackets with the 4 bolts.
Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf)
3. INSTALL BACK DOOR WITH MOTOR LOCK ASSEMB ...
Front floor footrest
COMPONENTS
Removal
1. REMOVE FRONT FLOOR FOOTREST
Using a screwdriver, disengage the 2 clips and
remove the footrest.
HINT:
Tape the screwdriver tip before use.
Disengage the clips and then remove the 2 clips
from the footrest.
INSTALLATION
1. INSTALL FRONT FLOOR FOOTREST ...
Problem symptoms table
If there are no DTCs output but the problem still occurs,
check the circuits for each problem symptom in the order
given in the table below and proceed to the relevant
troubleshooting page.
NOTICE:
When replacing the brake actuator assembly, sensor,
etc., turn the ignition switch off.
HINT:
...
