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Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Door lock / Key reminder warning system / How to proceed with troubleshooting

HINT:

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS

3 INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

  1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.

Result

Result

4 PROBLEM SYMPTOMS TABLE

Result

Result

5 OVERALL ANALYSIS AND TROUBLESHOOTING

  1. Terminals of ECU.
  2. DATA LIST/ACTIVE TEST

6 REPAIR OR REPLACE

7 CONFIRMATION TEST

END

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 caus ...

Operation check
1. REMOVE CHECK FUNCTION  Check that the key reminder warning buzzer sounds.  With the driver side door closed, insert the key into the ignition key cylinder and then turn the ...

Other materials:

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1) (a) Disconnect the sensor connector. (b) Using SST, remove the sensor from the exhaust manifold. SST 09224-00010 3. REMOVE FRONT EXHAUST PIPE ASSEMBLY (a) Disconnect the heat ...

Door Courtesy Switch Circuit
DESCRIPTION The Multiplex network body ECU detects the condition of the door courtesy switch assembly. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to DLC3.  Turn the ignition switch to ON and push the intelligent tester ...

Installation
HINT:  Use the same procedures for the RH side and LH side.  The procedures listed below are for the LH side. 1. INSTALL REAR AIRBAG SENSOR LH  Check that the ignition switch is off.  Check that the battery negative (-) terminal is disconnected. CAUTION: ...

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