POSITION MEMORY CONTROL MODULE INSPECTION


id091300811200

1.  Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

•  If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s).
―  If the system does not work normally even though the inspection items do not have any malfunction, replace the rear seat warmer switch. (See POSITION MEMORY CONTROL MODULE REMOVAL/INSTALLATION.)


Terminal Voltage Table (Reference)

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Terminal

Signal name

Connected to

Measured condition

Voltage (V)

Inspection item(s)

1A
1B
1C
CAN_H
CAN system related module
Terminal used for communication therefore determination based on terminal voltage is not possible.
1D
1E
CAN_L
CAN system related module
Terminal used for communication therefore determination based on terminal voltage is not possible.
1F
1G
Ignition power supply
METER1 10A fuse
Ignition switched ON (engine off)
B+
•  METER1 10A fuse
•  IG1 relay
•  Related wiring harness
Ignition switched OFF (LOCK)
1.0 or less
1H
Signal GND
Body ground
Under any condition
1.0 or less
Related wiring harness
1I
1J
Power GND
Body ground
Under any condition
1.0 or less
Related wiring harness
1K
1L
1M
Power supply
ROOM 15A fuse
Under any condition
B+
•  ROOM 15A fuse
•  Related wiring harness
1N
1O
Power supply
P.SEAT D 30A fuse
Under any condition
B+
•  P.SEAT D 30A fuse
•  CABIN. +B 50 A fuse
•  Related wiring harness
1P
2A
Slide switch input (forward)
Driver-side power seat switch
Press the slide switch to forward
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2B
Slide switch input (backward)
Driver-side power seat switch
Press the slide switch to backward
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2C
Tilt switch input (up)
Driver-side power seat switch
Press the tilt switch to up
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2D
Tilt switch input (down)
Driver-side power seat switch
Press the tilt switch to down
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2E
Lift switch input (up)
Driver-side power seat switch
Press the lift switch to up
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2F
Lift switch input (down)
Driver-side power seat switch
Press the lift switch to down
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2G
Recliner switch input (forward)
Driver-side power seat switch
Press the recliner switch to forward
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2H
Recliner switch input (backward)
Driver-side power seat switch
Press the recliner switch to backward
1.0 or less
•  Driver-side power seat switch
•  Position memory control module
―  Terminal 1M
•  Related wiring harness
Other
4.8 or more
2I
Signal GND input
Driver-side power seat switch
Under any condition
1.0 or less
Position memory control module
―  Terminal 1H
2J
Signal GND input
Position memory switch
Under any condition
1.0 or less
Position memory control module
―  Terminal 1H
2K
Set switch input
Position memory switch
Press the set switch
1.0 or less
•  Position memory control module
―  Terminal 1M
―  Terminal 1J
•  Related wiring harness
Other
4.8 or more
2L
Memory switch 1 input
Position memory switch
Press the memory switch 1
1.0 or less
•  Position memory control module
―  Terminal 1M
―  Terminal 1J
•  Related wiring harness
Other
4.8 or more
2M
Memory switch 2 input
Position memory switch
Press the memory switch 2
1.0 or less
•  Position memory control module
―  Terminal 1M
―  Terminal 1J
•  Related wiring harness
Other
4.8 or more
2N
2O
2P
3A
Slide motor output (forward)
Slide motor
While slide motor is moving to forward
B+
•  Slide motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3B
Slide motor output (backward)
Slide motor
While slide motor is moving to backward
B+
•  Slide motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3C
Tilt motor output (up)
Tilt motor
While tilt motor is moving to up
B+
•  Tilt motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3D
Tilt motor output (down)
Tilt motor
While tilt motor is moving to down
B+
•  Tilt motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3E
Lift motor output (up)
Lift motor
While lift motor is moving to up
B+
•  Lift motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3F
Lift motor output (down)
Lift motor
While lift motor is moving to down
B+
•  Lift motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3G
Recliner motor output (forward)
Recliner motor
While recliner motor is moving to forward
B+
•  Recliner motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3H
Recliner motor output (backward)
Recliner motor
While recliner motor is moving to backward
B+
•  Recliner motor
•  Position memory control module
―  Terminal 1O
―  Terminal 1J
•  Related wiring harness
Other
1.0 or less
3I
Slide position sensor power supply
Slide position sensor
Under any condition
B+
•  Slide position sensor
•  Position memory control module
―  Terminal 1M
•  Related wiring harnesses
3J
Slide position sensor signal
Slide position sensor
Measure the waveform while driving motor operation using the oscilloscope.
1.0 or less Û 4.8 or more
•  Slide position sensor
•  Position memory control module
―  Terminal 1H
―  Terminal 3I
•  Related wiring harnesses
Slide motor stopped
1.0 or less or 4.8 or more
3K
Tilt position sensor power supply
Tilt position sensor
Under any condition
B+
•  Tilt position sensor
•  Position memory control module
―  Terminal 1M
•  Related wiring harnesses
3L
Tilt position sensor signal
Tilt position sensor
Measure the waveform while driving motor operation using the oscilloscope.
1.0 or less Û 4.8 or more
•  Tilt position sensor
•  Position memory control module
―  Terminal 1H
―  Terminal 3K
•  Related wiring harnesses
Tilt motor stopped
1.0 or less or 4.8 or more
3M
Lift position sensor power supply
Lift position sensor
Under any condition
B+
•  Lift position sensor
•  Related wiring harnesses
3N
Lift position sensor signal
Lift position sensor
Measure the waveform while driving motor operation using the oscilloscope.
1.0 or less Û 4.8 or more
•  Lift motor and position sensor
•  Position memory control module
―  Terminal 1H
―  Terminal 3K
•  Related wiring harnesses
Lift motor stopped
1.0 or less or 4.8 or more
3O
Recliner position sensor power supply
Recliner position sensor
Under any condition
B+
•  Recliner position sensor
•  Related wiring harnesses
3P
Recliner motor pulse
Recliner position sensor
Measure the waveform while driving motor operation using the oscilloscope.
1.0 or less Û 4.8 or more
•  Recliner motor and position sensor
•  Position memory control module
―  Terminal 1H
―  Terminal 3O
•  Related wiring harnesses
Recliner motor stopped
1.0 or less or 4.8 or more