Toyota RAV4 manuals

Toyota Sienna Service Manual: Problem symptoms table

HINT:

POWER REAR NO. 2 SEAT with STOWING FUNCTION

Symptom

Symptom Suspected area

No functions operate.
  1. Power source circuit
  2. Fold seat control ECU
The folding-down function does not operate.
  1. Park/Neutral position switch circuit
  2. Back door courtesy switch circuit
  3. Lock switch circuit
  4. Reclining motor circuit
  5. Fold seat switch circuit
  6. Folding motor circuit
  7. Folding motor
  8. Fold seat control ECU
The return function does not operate.
  1. Park/Neutral position switch circuit
  2. Back door courtesy switch circuit
  3. Reclining motor circuit
  4. Folding motor circuit
  5. Fold seat switch circuit
  6. Release actuator circuit
  7. Folding motor
  8. Release actuator
  9. Fold seat control ECU
The stowing function does not operate.
  1. Park/Neutral position switch circuit
  2. Back door courtesy switch circuit
  3. Reclining motor circuit
  4. Folding motor circuit
  5. Fold seat switch circuit
  6. Fold lock switch circuit
  7. Folding motor
  8. Fold seat control ECU
The reclining function does not operate.
  1. Lock switch circuit
  2. Reclining motor circuit
  3. Rear power seat switch circuit
  4. Fold seat control ECU
The indicator does not come on or blink.
  1. Indicator circuit
  2. Fold seat control ECU
Initialization
HINT:  The seatback position is initialized at the factory before shipment, so initialization is not normally required. There is an initialization function for cases when reinitializati ...

Terminals of ECU
1. FOLD SEAT CONTROL ECU LH Disconnect the fold seat control ECU connectors. Measure the voltage and resistance of the wire harness side connectors. If the result is not as specifie ...

Other materials:

Inspection
1. INSPECT POWER STEERING RACK (a) Using a dial indicator, check the power steering rack for runout and for teeth wear and damage. Maximum runout: 0.3 mm (0.012 in.) If necessary, replace the rack & pinion power steering gear assembly. (b) Check the back surface for wear and damag ...

Perform signal check
HINT: When entering signal check mode, the tire pressure warning ECU sets all the signal check DTCs first. After completing signal check for each inspection item, the DTCs for systems that are determined to be normal by the tire pressure warning ECU will be erased. The DTCs f ...

Power mirror control system (w/o Memory)
PARTS LOCATION Problem symptoms table POWER MIRROR CONTROL SYSTEM Symptom Suspected area Mirror does not operate Outer mirror switch assembly Outer rear view mirror assembly Wire harness Mirror operates abnormally O ...

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