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:

Parking Brake Switch Circuit
DESCRIPTION The Multiplex network body ECU receives parking brake switch signal. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to DLC3.  Turn the ignition switch ON and push the intelligent tester main switch ON.  Se ...

Disassembly
1. REMOVE REAR DOOR WINDOW FRAME MOULDING REAR LH (See page ET-31) 2. REMOVE REAR DOOR WINDOW FRAME MOULDING SUB-ASSEMBLY LH (See page ET-32) 3. REMOVE SLIDE DOOR WINDOW GARNISH LH Fully open the slide door window. Remove the glass run. Using a screwdriver, disengage the clip and rem ...

Slide door half open stopper control assembly
INSPECTION 1. INSPECT SLIDE DOOR HALF OPEN STOPPER CONTROL ASSEMBLY Inspect the resistance of the switch. Resistance If the result is not as specified, replace the control sub-assembly. ...

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