Toyota RAV4 manuals

Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Seat / Front power seat control system / How to proceed with troubleshooting

HINT:

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS CHECK AND PROBLEM SYMPTOM CHECK

3 CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

  1. Use the intelligent tester to check for normal function of the multiplex communication system.
  1. (Position control ECU and switch assembly (power seat control switch and ECU) not connected, communication line malfunctioning) If no code is output, proceed to A.
  2.  (Position control ECU and switch assembly (power seat control switch and ECU) not connected, communication line malfunctioning) If any code is output, proceed to B.

4 PROBLEM SYMPTOMS TABLE

  1. If the fault is not listed on the problem symptoms table, proceed to A.
  2.  If the fault is listed on the problem symptoms table, proceed to B.

5 OVERALL ANALYSIS AND TROUBLESHOOTING

  1. DATA LIST/ACTIVE TEST.
  1.  Inspection with the intelligent tester (DATA LIST).
  2. Inspection with the intelligent tester (ACTIVE TEST).
  1.  Terminals of ECU.
  2.  Inspection.

6 ADJUST, REPAIR OR REPLACE

7 CONFIRMATION TEST

END

System description
1. GENERAL DESCRIPTION  The power seat control system is equipped with the following function:  The front seats are equipped with electric adjuster slide, reclining, lifter, fr ...

Problem symptoms table
HINT:  Inspect the fuse and relay before confirming the suspected areas in the table below.  Inspect each suspected area in numerical order for the corresponding symptom. If the ...

Other materials:

Vehicle Position Mark is not Updated
INSPECTION PROCEDURE 1 CHECK MAP DISC Check that the map disc is not deformed or cracked. OK: No deformations or cracks on map disc. 2 CHECK MAP DISPLAY Check if a touch scroll can be performed on the map display. OK: Touch scroll can be performed 3 CHECK VEHICLE SENSOR (NAV ...

Disassembly
1. REMOVE RH SEAT REAR SEAT RECLINING COVER  Remove the 2 screws.  Remove the RH seat rear seat reclining cover by pulling it out in the arrow mark direction shown in the illustration. 2. REMOVE LH SEAT REAR SEAT RECLINING COVER  Remove the 2 screws.  R ...

Disassembly
1. REMOVE NO. 2 FRONT AXLE INBOARD JOINT BOOT LH CLAMP (a) Using pliers, remove the No. 2 front axle inboard joint boot LH clamp, as shown in the illustration. 2. REMOVE FRONT AXLE INBOARD JOINT BOOT LH CLAMP (a) Remove the front axle inboard joint boot LH clamp using the same procedures a ...

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