Toyota Sienna Service Manual: How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
- Interview the customer and confirm the trouble.
- Confirm the problem by duplicating the conditions described by the customer
3 BASIC INSPECTION
- Basic inspection.
- Measure the battery voltage.
Standard voltage: 11 to 14 V
- with Navigation system: Check the power supply to the radio and navigation assembly.
- Turn the ignition switch to the ACC position.
- Check whether the display appears on the radio and navigation assembly.
- without Navigation system: Check the power supply to the radio receiver.
- Turn the ignition switch to the ACC position.
- Check whether the display appears on the radio receiver
4 PROBLEM SYMPTOMS TABLE
- Refer to the problem symptoms table
5 CIRCUIT INSPECTION AND PART INSPECTION
6 IDENTIFICATION OF PROBLEM
7 REPAIR OR REPLACE
8 CONFIRMATION TEST
END
System description
1. OUTLINE
As a unique feature of Rear Seat Entertainment
(RSE) system, the front and rear seat occupants can
enjoy different audio-visual modes at the same time.
Thus, this system o ...
Problem symptoms table
HINT:
Inspect the "Fuse" and "Relay" before confirming the
suspected area as shown in the table below.
DISPLAY FUNCTION:
SOUND FUNCTION:
REMOTE CONTROL FUNCTION:
...
Other materials:
Radio Broadcast cannot be Received or Poor Reception
INSPECTION PROCEDURE
1 CHECK RADIO AND NAVIGATION ASSEMBLY
Check the radio's automatic station search function.
Check the radio's automatic station search function
by activating it.
OK:
The radio's automatic station search function
works properly.
2 INSPECT RADIO AND NAVIGATION AS ...
On-vehicle inspection
1. INSPECT SEAT POSITION SENSOR (VEHICLE NOT
INVOLVED IN COLLISION)
Perform a diagnostic system check.
2. INSPECT SEAT POSITION SENSOR (VEHICLE
INVOLVED IN COLLISION)
Perform a diagnostic system check.
Even if the airbag was not deployed, check if there
is any dama ...
Unmatched Encryption Code
DTC B2794 Unmatched Encryption Code
DESCRIPTION
This DTC is output when a key with an incomplete key code is inserted into
the ignition key cylinder.
DTC No.
DTC Detection Condition
Trouble Area
B2794
Key with incomplete key code inserted
Key
IN ...
