POSITION MEMORY CONTROL MODULE INSPECTION


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1.  Measure the voltage at each terminal is as indicated in the Terminal Voltage Tables.

•  If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under “Inspection item(s)” and related wiring harnesses.

2.  If the system does not work properly even though the inspection items or related wiring harnesses do not have any malfunction, replace the position memory control module. (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.
1E
CAN_L
CAN system related module
Terminal used for communication therefore determination based on terminal voltage is not possible.
1G
Ignition power supply
METER1 10A fuse
Ignition switched ON (engine off)
B+
•  METER1 10A fuse
•  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
1J
Power GND
Body ground
Under any condition
1.0 or less
Related wiring harness
1M
Power supply
INTERIOR 10A fuse
Under any condition
B+
•  INTERIOR 10A fuse
•  Related wiring harness
1O
Power supply
P.SEAT D 30A fuse
Under any condition
B+
•  P.SEAT D 30A fuse
•  Related wiring harness
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
•  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
•  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
•  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
•  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
•  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
•  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
•  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
•  Related wiring harness
Other
4.8 or more
2I
Signal GND input
Driver-side power seat switch
Under any condition
1.0 or less
•  Driver-side power seat switch
•  Related wiring harness
2J
Signal GND input
Position memory switch
Under any condition
1.0 or less
•  Position memory switch
•  Related wiring harness
2K
Set switch input
Position memory switch
Press the set switch
1.0 or less
•  Position memory switch
•  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 switch
•  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 switch
•  Related wiring harness
Other
4.8 or more
3A
Slide motor output (forward)
Slide motor
While slide motor is moving to forward
B+
•  Slide motor
•  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
•  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 and position sensor
•  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 and position sensor
•  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 and position sensor
•  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 and position sensor
•  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 and position sensor
•  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 and position sensor
•  Related wiring harness
Other
1.0 or less
3I
Slide position sensor power supply
Slide position sensor
Slide motor moving
B+
•  Slide position sensor
•  Related wiring harnesses
Slide motor stopped
1.0 or less
3J
Slide motor pulse
Slide position sensor
Measure the waveform while driving motor operation using the oscilloscope.
High output: 4.8 or more
•  Slide position sensor
•  Related wiring harnesses
Low output: 1.0 or less
Slide motor stopped
1.0 or less or 4.8 or more
3K
Tilt position sensor power supply
Tilt position sensor
Tilt motor moving
B+
•  Tilt motor and position sensor
•  Related wiring harnesses
Tilt motor stopped
1.0 or less
3L
Tilt motor pulse
Tilt position sensor
Measure the waveform while driving motor operation using the oscilloscope.
High output: 4.8 or more
•  Tilt motor and position sensor
•  Related wiring harnesses
Low output: 1.0 or less
Tilt motor stopped
1.0 or less or 4.8 or more
3M
Lift position sensor power supply
Lift position sensor
Lift motor moving
B+
•  Lift motor and position sensor
•  Related wiring harnesses
Lift motor stopped
1.0 or less
3N
Lift motor pulse
Lift position sensor
Measure the waveform while driving motor operation using the oscilloscope.
High output: 4.8 or more
•  Lift motor and position sensor
•  Related wiring harnesses
Low output: 1.0 or less
Lift motor stopped
1.0 or less or 4.8 or more
3O
Recliner position sensor power supply
Recliner position sensor
Recliner motor moving
B+
•  Recliner motor and position sensor
•  Related wiring harnesses
Recliner motor stopped
1.0 or less
3P
Recliner motor pulse
Recliner position sensor
Measure the waveform while driving motor operation using the oscilloscope.
High output: 4.8 or more
•  Recliner motor and position sensor
•  Related wiring harnesses
Low output: 1.0 or less
Recliner motor stopped
1.0 or less or 4.8 or more