Toyota Sienna Service Manual: Key reminder warning system
Parts location
System description
1. KEY REMINDER WARNING SYSTEM DESCRIPTION
- When the driver side door is opened with the ignition key in the ACC or LOCK position, this system causes a buzzer to sound in order to warn the driver that the ignition key has not been removed.
- How to proceed with troubleshooting
- Operation check
- Terminals of ECU
- Diagnosis system
- Data list / active test
- Unlock Warning Switch Circuit
Only Wireless Door Lock Control Function does not Operate
DESCRIPTION
The door control receiver receives a signal from the transmitter and sends
this signal to the multiplex
network body ECU. Then, the multiplex network body ECU controls operation of the ...
How to proceed with
troubleshooting
HINT:
Use these procedures to troubleshoot the key reminder
warning system.
The intelligent tester should be used in steps 3 and 5.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PRO ...
Other materials:
How to proceed with troubleshooting
The intelligent tester can be used at step 2, 5, 8, 11.
1 Vehicle Brought to Workshop
2 Check and Clear DTCs and Freeze Frame Data
HINT:
See page BC-82 and BC-84.
3 Problem Symptom Confirmation
4 Symptom Simulation
5 DTC Check
HINT:
See page BC-82.
6 Problem Symptoms Table
HINT: ...
Transmitter battery
REPLACEMENT
1. REMOVE TRANSMITTER BATTERY
NOTICE:
Special caution should be taken for handling each
component as they are precision electronic
components.
Using a coin or the equivalent, pry out the
transmitter case.
NOTICE:
Do not forcibly pry out the case.
Re ...
Front Fog Light Circuit
DESCRIPTION
The Multiplex network body ECU controls FOG relay when signal is received
from headlight dimmer
switch assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push t ...
