POSITION MEMORY CONTROL MODULE INSPECTION [(US)]
POSITION MEMORY CONTROL MODULE INSPECTION [(US)]
SM2763810
id0913008112x1
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 [(US)].)
Terminal Voltage Table (Reference)
am3zzw00027417
|
|
Terminal |
Signal name |
Connected to |
Measured condition |
Voltage (V) |
Inspection item(s) |
|---|---|---|---|---|---|
|
1A
|
Power supply
|
F38 50A fuse
|
Under any condition
|
B+
|
• F38 50A fuse
• Related wiring harness
|
|
1B
|
Power supply
|
• F27 25A
• F50 15A
|
Under any condition
|
B+
|
• F27 25A
• F50 15A
• Related wiring harness
|
|
1C
|
Ignition power supply
|
F49 15A fuse
|
Ignition switched ON (engine off)
|
B+
|
• F49 15A fuse
• Related wiring harness
|
|
Ignition switched OFF (LOCK)
|
1.0 or less
|
||||
|
1D
|
Slide motor output (forward)
|
Slide motor
|
While slide motor is moving to forward
|
B+
|
• Slide motor
• Related wiring harness
|
|
Other
|
Voltage cannot be measured.
|
||||
|
1E
|
Tilt motor output (down)
|
Tilt motor
|
While tilt motor is moving to down
|
B+
|
• Tilt motor and position sensor
• Related wiring harness
|
|
Other
|
Voltage cannot be measured.
|
||||
|
1F
|
Slide motor output (backward)
|
Slide motor
|
While slide motor is moving to backward
|
B+
|
• Slide motor
• Related wiring harness
|
|
Other
|
Voltage cannot be measured.
|
||||
|
Tilt motor output (up)
|
Tilt motor
|
While tilt motor is moving to up
|
B+
|
• Tilt motor
• Related wiring harness
|
|
|
Other
|
Voltage cannot be measured.
|
||||
|
1G
|
Recliner motor output (forward)
|
Recliner motor
|
While recliner motor is moving to forward
|
B+
|
• Recliner motor
• Related wiring harness
|
|
Other
|
Voltage cannot be measured.
|
||||
|
1H
|
Recliner motor output (backward)
|
Recliner motor
|
While recliner motor is moving to backward
|
B+
|
• Recliner motor
• Related wiring harness
|
|
Other
|
Voltage cannot be measured.
|
||||
|
Lift motor output (up)
|
Lift motor
|
While lift motor is moving to up
|
B+
|
• Lift motor
• Related wiring harness
|
|
|
Other
|
Voltage cannot be measured.
|
||||
|
1I
|
Lift motor output (down)
|
Lift motor
|
While lift motor is moving to down
|
B+
|
• Lift motor
• Related wiring harness
|
|
Other
|
Voltage cannot be measured.
|
||||
|
1J
|
Heater power supply
|
F14 20A fuse
|
Under any condition
|
B+
|
• ROOM 15A fuse
• F14 20A fuse
• Related wiring harness
|
|
1K
|
Seat heater output 2
|
• Passenger-side seat cushion filament (without driver-side power seat)
• Driver-side seat cushion filament (with driver-side power seat)
|
Turn on seat heater
|
+B
|
• Passenger-side seat cushion filament (without driver-side power seat)
• Driver-side seat cushion filament (with driver-side power seat)
• Related wiring harness
|
|
Other
|
1.0 or less
|
||||
|
1L
|
Heater power supply
|
F14 20A fuse
|
Under any condition
|
B+
|
• ROOM 15A fuse
• F14 20A fuse
• Related wiring harness
|
|
1M
|
Seat heater output 1
|
• Driver-side seat cushion filament (without driver-side power seat)
• Passenger-side seat cushion filament (with driver-side power seat)
|
Turn on seat heater
|
B+
|
• Driver-side seat cushion filament (without driver-side power seat)
• Passenger-side seat cushion filament (with driver-side power seat)
• Related wiring harness
|
|
Other
|
1.0 or less
|
||||
|
1N
|
—
|
—
|
—
|
—
|
—
|
|
1O
|
—
|
—
|
—
|
—
|
—
|
|
1P
|
Signal GND1 input
|
Driver-side power seat switch
|
Under any condition
|
1.0 or less
|
• Driver-side power seat switch
• Related wiring harness
|
|
1Q
|
Power GND
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|
1R
|
Signal GND2 input
|
Body ground
|
Under any condition
|
1.0 or less
|
• Body ground
• Related wiring harness
|
|
2A
|
LIN
|
DASH_ESU
|
Terminal used for communication therefore determination based on terminal voltage is not possible.
|
||
|
2B
|
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
|
||||
|
2C
|
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
|
||||
|
2D
|
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
|
||||
|
2E
|
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
|
||||
|
2F
|
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
|
||||
|
2G
|
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
|
||||
|
2H
|
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
|
||||
|
2I
|
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
|
||||
|
2J
|
Position sensor power supply
|
Position sensor
|
Under any condition
|
B+
|
• Position sensor
• Related wiring harness
|
|
2K
|
Slide motor pulse
|
Slide position sensor
|
Measure the waveform while driving motor operation using the oscilloscope.
|
High output: Voltage cannot be measured.
|
• Slide position sensor
• Related wiring harnesses
|
|
Low output: 1.0 or less
|
|||||
|
Slide motor stopped
|
Voltage cannot be measured.
|
||||
|
2L
|
Recliner motor pulse
|
Recliner position sensor
|
Measure the waveform while driving motor operation using the oscilloscope.
|
High output: +B
|
• Recliner motor and position sensor
• Related wiring harnesses
|
|
Low output: 1.0 or less
|
|||||
|
Recliner motor stopped
|
Voltage cannot be measured.
|
||||
|
2M
|
Tilt motor pulse
|
Tilt position sensor
|
Measure the waveform while driving motor operation using the oscilloscope.
|
High output: Voltage cannot be measured.
|
• Tilt motor and position sensor
• Related wiring harnesses
|
|
Low output: 1.0 or less
|
|||||
|
Tilt motor stopped
|
Voltage cannot be measured.
|
||||
|
2N
|
Lift motor pulse
|
Lift position sensor
|
Measure the waveform while driving motor operation using the oscilloscope.
|
High output: Voltage cannot be measured.
|
• Lift motor and position sensor
• Related wiring harnesses
|
|
Low output: 1.0 or less
|
|||||
|
Lift motor stopped
|
Voltage cannot be measured.
|
||||
|
2O
|
Thermistor input2
|
• Passenger-side seat cushion filament (without driver-side power seat)
• Driver-side seat cushion filament (with driver-side power seat)
|
The terminal voltage cannot be measured.
|
||
|
2P
|
Thermistor input1
|
• Driver-side seat cushion filament (without driver-side power seat)
• Passenger-side seat cushion filament (with driver-side power seat)
|
The terminal voltage cannot be measured.
|
||
|
2Q
|
—
|
—
|
—
|
—
|
—
|
|
2R
|
—
|
—
|
—
|
—
|
—
|
|
2S
|
—
|
—
|
—
|
—
|
—
|
|
2T
|
—
|
—
|
—
|
—
|
—
|
|
2U
|
—
|
—
|
—
|
—
|
—
|
|
2V
|
—
|
—
|
—
|
—
|
—
|
|
2W
|
—
|
—
|
—
|
—
|
—
|
|
2X
|
Sensor GND
|
• Recliner motor and position sensor
• Passenger-side seat cushion filament (without driver-side power seat)
• Driver-side seat cushion filament (with driver-side power seat)
|
Under any condition
|
1.0 or less
|
• Recliner motor and position sensor
• Passenger-side seat cushion filament (without driver-side power seat)
• Driver-side seat cushion filament (with driver-side power seat)
• Related wiring harness
|