Toyota Sienna Service Manual: How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP
2 INSPECT BATTERY VOLTAGE
Standard voltage: 11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
3 BASIC INSPECTION
- Turn the ignition switch ON.
- Check whether or not the radio receiver turns on.
Result
4 CHECK FOR DTC
- Check for DTCs and note any codes that are output.
- Delete the DTCs.
- Recheck for DTCs by simulating the operation indicated by the DTCs.
HINT:
- If the system cannot enter the diagnosis mode, inspect the AVC-LAN and all the components that connect to the AVC-LAN for short circuits and repair or replace the problem part.
- Even if the malfunction symptom is not confirmed, check the DTCs. This is because the system stores past DTCs.
- Check and clear past DTCs. Then check for DTCs.
Result
5 DIAGNOSTIC TROUBLE CODE CHART
Find the output code on the diagnostic trouble code chart
6 PROBLEM SYMPTOMS TABLE
Refer to the problem symptoms table
Result
7 OVERALL ANALYSIS AND TROUBLESHOOTING
- Terminals of ECU
8 ADJUST, REPAIR OR REPLACE
9 CONFIRMATION TEST
END
System diagram
1. DISC PLAYER OUTLINE
A CD player uses a laser pickup to read digital
signals recorded on CDs. By converting the digital
signals to analog, music and other content can be
played.
C ...
Identification of noise source
1. Radio Description
Radio frequency band
Radio broadcasts use the radio frequency bands
shown in the table below.
Service area
The service areas of A ...
Other materials:
Removal
1. DISCHARGE FUEL SYSTEM PRESSURE
2. REMOVE V-BANK COVER SUB-ASSEMBLY
3. DRAIN ENGINE COOLANT
4. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
5. REMOVE FRONT OUTER COWL TOP PANEL SUBASSEMBLY
6. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY
8. REMOVE INTAKE AIR SURGE TA ...
Installation
1. INSTALL HEADLIGHT ASSEMBLY
Connect the connectors.
Install the headlight assembly with the bolt and 3
screws.
2. INSTALL FRONT BUMPER ASSEMBLY
3. CONNECT CABLE TO NEGATIVE BATTERY
TERMINAL
4. VEHICLE PREPARATION FOR HEADLIGHT AIMING
5. PREPARATION FOR HEADLIGHT AIMI ...
Removal
1. REMOVE REAR SEAT 3 POINT TYPE BELT
ASSEMBLY (for 8-Passenger)
HINT:
Refer to the instructions for disassembly of the rear No. 1 seat assembly (for
center seat).
Remove the bolt and rear seat 3 point type belt
assembly.
2. REMOVE REAR SEAT 3 POINT TYPE BELT
ASSEMBLY (for 7-Pas ...
