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:

On-vehicle inspection
1. FRONT SEAT SIDE AIRBAG ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)  Perform a diagnostic system check.  With the front seat side airbag assembly installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the front seatback as ...

Speed Signal Circuit
DESCRIPTION The clearance warning ECU receives the vehicle speed signal from the combination meter. HINT:  A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The signal is changed to a pulse signal at the transistor in the combination meter. ...

Sound Signal Circuit between Radio Receiver and Television Display Assembly
DESCRIPTION The television display assembly sends a sound signal to the radio receiver through this circuit. The sound signal that has been sent is amplified by the stereo component amplifier or radio receiver (built-in amplifier), and then is sent to the speakers. If there is an open or ...

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