RM38N0EC _58 Vehicle Interior _111839 SEAT _0505694 FRONT POWER SEAT CONTROL SYSTEM(w/ Memory) J

SEAT  FRONT POWER SEAT CONTROL SYSTEM(w/ Memory)  One or more Power Seat Motors do not Operate  


DESCRIPTION

Signals are input into the position control ECU assembly. The built-in ECU manages the signals received from the position control ECU assembly and operates each motor. If the position control ECU assembly receives 2 or more operation signals for the same motor, the motor will be stopped. Manual operation resumes when the position control ECU assembly receives only 1 signal.

WIRING DIAGRAM

for SFTM Made


B567714E12
1.177,1.146 1.948,1.427 0.771,0.281 10 false V14 1.188,1.302 3.771,1.792 2.583,0.49 10 false Lumbar Support Adjuster Assembly LH 2.708,0.927 3.479,1.208 0.771,0.281 10 false 1 2.719,0.427 3.49,0.708 0.771,0.281 10 false 2 2.719,2.125 3.49,2.406 0.771,0.281 10 false 3 1.833,3.021 2.604,3.302 0.771,0.281 10 false V12 1.833,3.198 3,3.479 1.167,0.281 10 false Reclining Motor 1.021,3.542 3.781,3.927 2.76,0.385 10 false Front Seatback Frame Sub-Assembly LH 1.781,5.302 2.802,5.635 1.021,0.333 10 false U25 1.771,5.448 2.542,5.729 0.771,0.281 10 false Slide Motor 0.594,6.573 1.781,6.896 1.188,0.323 10 false U42 0.917,8.01 1.917,8.302 1,0.292 10 false U32 1.354,8.865 3.729,9.458 2.375,0.594 10 false Front Seat Adjuster Assembly LH 4.865,9.156 7.021,9.552 2.156,0.396 10 false Position Control ECU Assembly 4.906,1.021 5.677,1.302 0.771,0.281 10 false U34 5.354,0.49 6.125,0.771 0.771,0.281 10 false L+ 5.354,2.229 6.125,2.51 0.771,0.281 10 false RCL+ 5.354,4.521 6.125,4.802 0.771,0.281 10 false SLD+ 5.354,5.958 6.125,6.24 0.771,0.281 10 false FRV+ 5.354,7.375 6.125,7.656 0.771,0.281 10 false LFT+ 4.99,7.656 5.76,7.938 0.771,0.281 10 false 5 4.99,7.135 5.76,7.417 0.771,0.281 10 false 6 5.01,6.229 5.781,6.51 0.771,0.281 10 false 4 5,5.719 5.771,6 0.771,0.281 10 false 7 5,4.802 5.771,5.083 0.771,0.281 10 false 5 5,4.292 5.771,4.573 0.771,0.281 10 false 1 5.01,2.51 5.781,2.792 0.771,0.281 10 false 6 4.958,2 5.729,2.281 0.771,0.281 10 false 10 4.99,0.781 5.76,1.063 0.771,0.281 10 false 3 5,0.271 5.771,0.552 0.771,0.281 10 false 9 5.365,1.01 6.135,1.292 0.771,0.281 10 false L- 5.354,2.75 6.125,3.031 0.771,0.281 10 false RCL- 5.354,5.042 6.125,5.323 0.771,0.281 10 false SLD- 5.365,6.479 6.135,6.76 0.771,0.281 10 false FRV- 5.354,7.896 6.125,8.177 0.771,0.281 10 false LFT- 0.594,6.74 4.156,7.156 3.563,0.417 10 false Front Vertical Motor (Power Seat Tilt Motor Assembly LH) 2.719,4.417 3.49,4.698 0.771,0.281 10 false 4 2.708,6.365 3.479,6.646 0.771,0.281 10 false 1 2.719,7.76 3.49,8.042 0.771,0.281 10 false 1 2.719,2.646 3.083,2.958 0.365,0.313 10 false 1 2.719,4.917 3.083,5.229 0.365,0.313 10 false 3 2.698,5.833 3.063,6.146 0.365,0.313 10 false 3 2.698,7.281 3.063,7.594 0.365,0.313 10 false 3 0.917,8.177 4.188,8.552 3.271,0.375 10 false Lifter Motor (Power Seat Lifter Motor Assembly LH) 4.917,0.5 5.688,0.781 0.771,0.281 10 false U33 4.917,2.229 5.688,2.51 0.771,0.281 10 false U33 4.917,4.531 5.688,4.813 0.771,0.281 10 false U33 4.917,5.042 5.688,5.323 0.771,0.281 10 false U33 4.917,5.958 5.688,6.24 0.771,0.281 10 false U33 4.927,7.375 5.698,7.656 0.771,0.281 10 false U33 4.927,2.75 5.698,3.031 0.771,0.281 10 false U34 4.917,6.479 5.688,6.76 0.771,0.281 10 false U34 4.927,7.896 5.698,8.177 0.771,0.281 10 false U34

B647846E01
5.552,1.135 6.167,1.333 0.615,0.198 10 false SLDR 5.552,1.688 6.167,1.885 0.615,0.198 10 false SLDF 0.917,1.271 1.229,1.469 0.313,0.198 10 false GND 5.552,2.25 6.167,2.448 0.615,0.198 10 false RCLR 5.552,2.823 6.167,3.021 0.615,0.198 10 false RCLF 0.635,1.271 0.99,1.74 0.354,0.469 10 false 20 2.552,1.01 3.177,1.292 0.625,0.281 10 false 6 2.542,1.563 3.167,1.833 0.625,0.271 10 false 7 2.542,2.135 3.156,2.458 0.615,0.323 10 false 1 2.542,2.688 3.146,2.958 0.604,0.271 10 false 2 2.542,3.271 3.177,3.615 0.635,0.344 10 false 4 2.542,3.833 3.292,4.177 0.75,0.344 10 false 5 2.542,4.396 3.115,4.677 0.573,0.281 10 false 3 2.552,4.958 3.115,5.25 0.563,0.292 10 false 8 2.521,5.542 3.396,5.927 0.875,0.385 10 false 17 2.521,6.083 3.313,6.448 0.792,0.365 10 false 14 5.146,0.885 5.458,1.083 0.313,0.198 10 false 23 5.177,1.448 5.333,1.646 0.156,0.198 10 false 9 5.146,2.01 5.458,2.208 0.313,0.198 10 false 22 5.188,2.573 5.344,2.771 0.156,0.198 10 false 8 5.177,3.146 5.333,3.344 0.156,0.198 10 false 6 5.135,3.708 5.448,3.906 0.313,0.198 10 false 20 5.177,4.281 5.333,4.479 0.156,0.198 10 false 7 5.146,4.844 5.458,5.042 0.313,0.198 10 false 21 5.125,5.417 5.438,5.615 0.313,0.198 10 false 18 5.167,5.969 5.323,6.167 0.156,0.198 10 false 4 0.708,7.104 3.115,7.75 2.406,0.646 10 false Front Power Seat Switch LH 0.698,6.927 1.635,7.188 0.938,0.26 10 false U37 5.021,6.896 7.052,7.365 2.031,0.469 10 false Position Control ECU Assembly 2.031,1.021 2.646,1.219 0.615,0.198 10 false SLDR 2.063,1.563 2.677,1.76 0.615,0.198 10 false SLDF 2.042,2.135 2.656,2.333 0.615,0.198 10 false RCLR 2.063,2.688 2.677,2.885 0.615,0.198 10 false RCLF 2.135,3.271 2.75,3.469 0.615,0.198 10 false FUP 2,3.833 2.615,4.031 0.615,0.198 10 false FDWN 2.01,4.969 2.625,5.167 0.615,0.198 10 false LDWN 2.292,6.094 2.906,6.292 0.615,0.198 10 false H 2.156,4.406 2.771,4.604 0.615,0.198 10 false LUP 2.292,5.531 2.906,5.729 0.615,0.198 10 false R 5.104,1.125 5.417,1.323 0.313,0.198 10 false U35 5.125,1.688 5.438,1.885 0.313,0.198 10 false U35 5.115,2.25 5.427,2.448 0.313,0.198 10 false U35 5.104,2.813 5.417,3.01 0.313,0.198 10 false U35 5.104,3.406 5.417,3.604 0.313,0.198 10 false U35 5.115,3.948 5.427,4.146 0.313,0.198 10 false U35 5.115,4.531 5.427,4.729 0.313,0.198 10 false U35 5.104,5.094 5.417,5.292 0.313,0.198 10 false U35 5.104,5.656 5.417,5.854 0.313,0.198 10 false U35 5.104,6.219 5.417,6.417 0.313,0.198 10 false U35 5.563,3.406 6.177,3.604 0.615,0.198 10 false FUP 5.552,3.969 6.167,4.167 0.615,0.198 10 false FDWN 5.563,4.51 6.177,4.708 0.615,0.198 10 false LUP 5.563,5.083 6.177,5.281 0.615,0.198 10 false LDWN 5.563,5.656 6.177,5.854 0.615,0.198 10 false R 5.563,6.219 6.177,6.417 0.615,0.198 10 false H


for GTMC Made


B567714E11
1.188,1.135 1.958,1.417 0.771,0.281 10 false V17 1.188,1.292 3.771,1.781 2.583,0.49 10 false Lumbar Support Adjuster Assembly LH 2.75,0.917 3.521,1.198 0.771,0.281 10 false 2 2.74,0.406 3.51,0.688 0.771,0.281 10 false 1 2.729,2.125 3.5,2.406 0.771,0.281 10 false 4 1.833,3.021 2.604,3.302 0.771,0.281 10 false V19 1.833,3.198 3,3.479 1.167,0.281 10 false Reclining Motor 1.021,3.542 3.781,3.927 2.76,0.385 10 false Front Seatback Frame Sub-Assembly LH 1.781,5.302 2.802,5.635 1.021,0.333 10 false U47 1.771,5.448 2.542,5.729 0.771,0.281 10 false Slide Motor 0.594,6.573 1.781,6.896 1.188,0.323 10 false U52 0.917,8.01 1.917,8.302 1,0.292 10 false U50 1.219,8.865 3.594,9.458 2.375,0.594 10 false Front Seat Adjuster Assembly LH 4.865,9.156 7.021,9.552 2.156,0.396 10 false Position Control ECU Assembly 4.906,1.021 5.677,1.302 0.771,0.281 10 false U34 5.354,0.49 6.125,0.771 0.771,0.281 10 false L+ 5.354,2.229 6.125,2.51 0.771,0.281 10 false RCL+ 5.354,4.521 6.125,4.802 0.771,0.281 10 false SLD+ 5.354,5.958 6.125,6.24 0.771,0.281 10 false FRV+ 5.354,7.375 6.125,7.656 0.771,0.281 10 false LFT+ 4.979,7.677 5.75,7.958 0.771,0.281 10 false 5 4.979,7.135 5.75,7.417 0.771,0.281 10 false 6 4.979,6.24 5.75,6.521 0.771,0.281 10 false 4 4.99,5.719 5.76,6 0.771,0.281 10 false 7 5,4.792 5.771,5.073 0.771,0.281 10 false 5 5,4.281 5.771,4.563 0.771,0.281 10 false 1 5,2.51 5.771,2.792 0.771,0.281 10 false 6 4.948,2 5.719,2.281 0.771,0.281 10 false 10 4.979,0.781 5.75,1.063 0.771,0.281 10 false 3 5,0.271 5.771,0.552 0.771,0.281 10 false 9 5.365,1.01 6.135,1.292 0.771,0.281 10 false L- 5.354,2.75 6.125,3.031 0.771,0.281 10 false RCL- 5.354,5.042 6.125,5.323 0.771,0.281 10 false SLD- 5.365,6.479 6.135,6.76 0.771,0.281 10 false FRV- 5.354,7.896 6.125,8.177 0.771,0.281 10 false LFT- 0.594,6.74 4.156,7.156 3.563,0.417 10 false Front Vertical Motor (Power Seat Tilt Motor Assembly LH) 2.719,4.417 3.49,4.698 0.771,0.281 10 false 4 2.719,6.365 3.49,6.646 0.771,0.281 10 false 4 2.729,7.771 3.5,8.052 0.771,0.281 10 false 4 2.719,2.646 3.083,2.958 0.365,0.313 10 false 1 2.719,4.927 3.083,5.24 0.365,0.313 10 false 1 2.719,5.833 3.083,6.146 0.365,0.313 10 false 1 2.719,7.281 3.083,7.594 0.365,0.313 10 false 1 0.917,8.177 4.188,8.552 3.271,0.375 10 false Lifter Motor (Power Seat Lifter Motor Assembly LH) 4.917,0.5 5.688,0.781 0.771,0.281 10 false U54 4.927,2.229 5.698,2.51 0.771,0.281 10 false U54 4.938,4.521 5.708,4.802 0.771,0.281 10 false U54 4.927,5.042 5.698,5.323 0.771,0.281 10 false U54 4.938,5.948 5.708,6.229 0.771,0.281 10 false U54 4.927,7.375 5.698,7.656 0.771,0.281 10 false U54 4.927,2.75 5.698,3.031 0.771,0.281 10 false U34 4.906,6.469 5.677,6.75 0.771,0.281 10 false U34 4.927,7.896 5.698,8.177 0.771,0.281 10 false U34

B567715E13
5.542,1.125 6.156,1.323 0.615,0.198 10 false SLDR 5.531,1.688 6.146,1.885 0.615,0.198 10 false SLDF 5.531,0.563 6.063,0.781 0.531,0.219 10 false SGND 5.125,0.313 5.417,0.521 0.292,0.208 10 false 12 0.917,1.271 1.229,1.469 0.313,0.198 10 false GND 5.531,2.25 6.146,2.448 0.615,0.198 10 false RCLR 5.531,2.823 6.146,3.021 0.615,0.198 10 false RCLF 5.531,3.396 6.146,3.594 0.615,0.198 10 false FRVU 5.542,3.958 6.156,4.156 0.615,0.198 10 false FRVD 5.542,4.531 6.156,4.729 0.615,0.198 10 false LFTU 5.542,5.094 6.156,5.292 0.615,0.198 10 false LFTD 5.531,5.656 6.146,5.854 0.615,0.198 10 false LFLR 5.542,6.229 6.156,6.427 0.615,0.198 10 false LFLF 0.646,1.271 1,1.74 0.354,0.469 10 false 20 2.542,1.01 3.167,1.292 0.625,0.281 10 false 6 2.552,1.563 3.177,1.833 0.625,0.271 10 false 7 2.542,2.146 3.156,2.469 0.615,0.323 10 false 1 2.542,2.698 3.146,2.969 0.604,0.271 10 false 2 2.542,3.281 3.177,3.625 0.635,0.344 10 false 4 2.542,3.833 3.292,4.177 0.75,0.344 10 false 5 2.552,4.406 3.125,4.688 0.573,0.281 10 false 3 2.542,4.969 3.104,5.26 0.563,0.292 10 false 8 2.531,5.542 3.406,5.927 0.875,0.385 10 false 17 2.531,6.104 3.323,6.469 0.792,0.365 10 false 14 5.135,0.875 5.448,1.073 0.313,0.198 10 false 23 5.177,1.448 5.333,1.646 0.156,0.198 10 false 9 5.135,2.01 5.448,2.208 0.313,0.198 10 false 22 5.167,2.573 5.323,2.771 0.156,0.198 10 false 8 5.177,3.146 5.333,3.344 0.156,0.198 10 false 6 5.135,3.708 5.448,3.906 0.313,0.198 10 false 20 5.167,4.281 5.323,4.479 0.156,0.198 10 false 7 5.146,4.844 5.458,5.042 0.313,0.198 10 false 21 5.115,5.417 5.427,5.615 0.313,0.198 10 false 18 5.167,5.969 5.323,6.167 0.156,0.198 10 false 4 0.708,7.063 3.115,7.708 2.406,0.646 10 false Front Power Seat Switch LH 0.698,6.896 1.635,7.156 0.938,0.26 10 false U37 5.031,6.896 7.063,7.365 2.031,0.469 10 false Position Control ECU Assembly 5.104,0.552 5.417,0.75 0.313,0.198 10 false U35 2.031,1.021 2.646,1.219 0.615,0.198 10 false SLDR 2.063,1.563 2.677,1.76 0.615,0.198 10 false SLDF 2.042,2.146 2.656,2.344 0.615,0.198 10 false RCLR 2.073,2.698 2.688,2.896 0.615,0.198 10 false RCLF 2.135,3.281 2.75,3.479 0.615,0.198 10 false FUP 1.99,3.833 2.604,4.031 0.615,0.198 10 false FDWN 2,4.969 2.615,5.167 0.615,0.198 10 false LDWN 2.292,6.104 2.906,6.302 0.615,0.198 10 false H 2.146,4.417 2.76,4.615 0.615,0.198 10 false LUP 2.292,5.542 2.906,5.74 0.615,0.198 10 false R 5.104,1.125 5.417,1.323 0.313,0.198 10 false U35 5.125,1.688 5.438,1.885 0.313,0.198 10 false U35 5.104,2.25 5.417,2.448 0.313,0.198 10 false U35 5.104,2.813 5.417,3.01 0.313,0.198 10 false U35 5.104,3.406 5.417,3.604 0.313,0.198 10 false U35 5.115,3.948 5.427,4.146 0.313,0.198 10 false U35 5.115,4.531 5.427,4.729 0.313,0.198 10 false U35 5.104,5.094 5.417,5.292 0.313,0.198 10 false U35 5.104,5.656 5.417,5.854 0.313,0.198 10 false U35 5.104,6.219 5.417,6.417 0.313,0.198 10 false U35


PROCEDURE

1.CHECK FRONT POWER SEAT OPERATION
a.

Check that each function of the power seat operates normally by using the front power seat switch LH.

Click hereVehicle Interior>SEAT>FRONT POWER SEAT CONTROL SYSTEM (w/ Memory)>OPERATION CHECK


Result:
Result Proceed to
One or more power seat functions do not operate A
All power seat functions do not operate B



A

2.READ VALUE USING GTS (POWER SEAT SWITCH)

B

GO TO OTHER DIAGNOSIS PROCEDURE (Front Power Seat does not Operate with Front Power Seat Switch)

Click hereVehicle Interior>SEAT>FRONT POWER SEAT CONTROL SYSTEM (w/ Memory)>Front Power Seat does not Operate with Front Power Seat Switch


2.READ VALUE USING GTS (POWER SEAT SWITCH)
a.

Read the Data List according to the display on the GTS.

Body Electrical > Driver Seat > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Reclining Rear Reclining switch signal (Rearward) OFF or ON OFF: Reclining switch (Rearward) off
ON: Reclining switch (Rearward) on 		-
Reclining Front Reclining switch signal (Forward) OFF or ON OFF: Reclining switch (Forward) off
ON: Reclining switch (Forward) on 		-
Front Vertical Down Front vertical switch signal (Downward) OFF or ON OFF: Front vertical switch (Downward) off
ON: Front vertical switch (Downward) on 		-
Front Vertical Up Front vertical switch signal (Upward) OFF or ON OFF: Front vertical switch (Upward) off
ON: Front vertical switch (Upward) on 		-
Lifter Switch Down Lifter switch signal (Downward) OFF or ON OFF: Lifter switch (Downward) off
ON: Lifter switch (Downward) on 		-
Lifter Switch Up Lifter switch signal (Upward) OFF or ON OFF: Lifter switch (Upward) off
ON: Lifter switch (Upward) on 		-
Slide Rear Slide switch signal (Rearward) OFF or ON OFF: Slide switch (Rearward) off
ON: Slide switch (Rearward) on 		-
Slide Front Slide switch signal (Forward) OFF or ON OFF: Slide switch (Forward) off
ON: Slide switch (Forward) on 		-
Lumbar Switch Front Lumbar support adjuster switch signal (Forward) OFF or ON OFF: Lumbar support adjuster switch (Forward) off
ON: Lumbar support adjuster switch (Forward) on 		-
Lumbar Switch Rear Lumbar support adjuster switch signal (Rearward) OFF or ON OFF: Lumbar support adjuster switch (Rearward) off
ON: Lumbar support adjuster switch (Rearward) on 		-
Body Electrical > Driver Seat > Data List
Tester Display
Reclining Rear
Reclining Front
Front Vertical Down
Front Vertical Up
Lifter Switch Down
Lifter Switch Up
Slide Rear
Slide Front
Lumbar Switch Front
Lumbar Switch Rear
50003 162 17,18,19,20,21,22,23,24,157,158
OK:

On the GTS screen, ON or OFF is displayed accordingly



Result:
Proceed to
OK
NG



OK

3.PERFORM ACTIVE TEST USING GTS (POWER SEAT MOTOR)

NG

10.INSPECT FRONT POWER SEAT SWITCH LH
3.PERFORM ACTIVE TEST USING GTS (POWER SEAT MOTOR)
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Driver Seat > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Seat Reclining Seat reclining operation OFF/Rear/Front -
Front Vertical Operation Seat front vertical operation OFF/Down/Up -
Lifter Operation Seat lifter operation OFF/Down/Up -
Seat Slide Operation Seat slide operation OFF/Rear/Front -
Lumbar Slide Lumbar support operation (Forward - Rearward) OFF/Rear/Front -
Body Electrical > Driver Seat > Active Test
Tester Display
Seat Reclining
50004 162 1
Body Electrical > Driver Seat > Active Test
Tester Display
Front Vertical Operation
50004 162 3
Body Electrical > Driver Seat > Active Test
Tester Display
Lifter Operation
50004 162 2
Body Electrical > Driver Seat > Active Test
Tester Display
Seat Slide Operation
50004 162 4
Body Electrical > Driver Seat > Active Test
Tester Display
Lumbar Slide
50004 162 8

Result:
Result Proceed to
All power seat functions operate normally A
Slide function does not operate normally B
Front vertical function does not operate normally C
Lifter function does not operate normally D
Reclining function does not operate normally E
Lumbar support adjustment function does not operate normally F



A

REPLACE POSITION CONTROL ECU ASSEMBLY

for SFTM Made: Click hereVehicle Interior>SEAT>POWER SEAT CONTROL ECU (for SFTM Made)>REMOVAL

for GTMC Made: Click hereVehicle Interior>SEAT>POWER SEAT CONTROL ECU (for GTMC Made)>REMOVAL


B

4.INSPECT SLIDE MOTOR (FRONT SEAT ADJUSTER ASSEMBLY LH)

C

5.INSPECT FRONT VERTICAL MOTOR (FRONT SEAT ADJUSTER ASSEMBLY LH)

D

6.INSPECT LIFTER MOTOR (FRONT SEAT ADJUSTER ASSEMBLY LH)

E

7.INSPECT RECLINING MOTOR (FRONT SEAT BACK FRAME SUB-ASSEMBLY LH)

F

8.INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY LH
9.CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT MOTOR)
a.

Disconnect the U33*1 or U54*2 and U34 position control ECU assembly connectors.

*1: for SFTM Made

*2: for GTMC Made



b.

for SFTM Made

i.

Measure the resistance according to the value(s) in the table below.

HINT:

Check the wire harness and connector between the position control ECU assembly and applicable motor.


Standard Resistance:
Slide Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U33,U25)Location & Routing

Click Connector(U33)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(U25)Seat>Front Seat Wire RH / Front Seat Wire LH>Slide Motor (Front Seat Adjuster Assembly LH)

U33-1 (SLD+) - U25-4 Always Below 1 Ω
U33-1 (SLD+) or U25-4 - Body ground Always 10 kΩ or higher
U33-5 (SLD-) - U25-3 Always Below 1 Ω
U33-5 (SLD-) or U25-3 - Body ground Always 10 kΩ or higher

Front Vertical Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U33,U42,U34)Location & Routing

Click Connector(U33)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(U42)Seat>Front Seat Wire RH / Front Seat Wire LH>Power Seat Tilt Motor Assembly LH

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U33-7 (FRV+) - U42-3 Always Below 1 Ω
U33-7 (FRV+) or U42-3 - Body ground Always 10 kΩ or higher
U34-4 (FRV-) - U42-1 Always Below 1 Ω
U34-4 (FRV-) or U42-1 - Body ground Always 10 kΩ or higher

Lifter Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U33,U32,U34)Location & Routing

Click Connector(U33)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(U32)Seat>Front Seat Wire RH / Front Seat Wire LH>Power Seat Lifter Motor Assembly LH

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U33-6 (LFT+) - U32-3 Always Below 1 Ω
U33-6 (LFT+) or U32-3 - Body ground Always 10 kΩ or higher
U34-5 (LFT-) - U32-1 Always Below 1 Ω
U34-5 (LFT-) or U32-1 - Body ground Always 10 kΩ or higher

Reclining Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U33,V12,U34)Location & Routing

Click Connector(U33)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(V12)Seat>No. 2 Front Seat Wire RH / No. 2 Front Seat Wire LH>Reclining Motor (Front Seatback Frame Sub-Assembly LH)

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U33-10 (RCL+) - V12-3 Always Below 1 Ω
U33-10 (RCL+) or V12-3 - Body ground Always 10 kΩ or higher
U34-6 (RCL-) - V12-1 Always Below 1 Ω
U34-6 (RCL-) or V12-1 - Body ground Always 10 kΩ or higher

Front Lumbar Support Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U33,V14,U34)Location & Routing

Click Connector(U33)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(V14)Seat>No. 2 Front Seat Wire RH / No. 2 Front Seat Wire LH>Lumbar Support Adjuster Assembly LH

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U33-9 (L+) - V14-2 Always Below 1 Ω
U33-9 (L+) or V14-2 - Body ground Always 10 kΩ or higher
U34-3 (L-) - V14-1 Always Below 1 Ω
U34-3 (L-) or V14-1 - Body ground Always 10 kΩ or higher




c.

for GTMC Made

i.

Measure the resistance according to the value(s) in the table below.

HINT:

Check the wire harness and connector between the position control ECU assembly and applicable motor.


Standard Resistance:
Slide Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U54,U47)Location & Routing

Click Connector(U54)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(U47)Seat>Front Seat Wire RH / Front Seat Wire LH>Slide Motor (Front Seat Adjuster Assembly LH)

U54-1 (SLD+) - U47-4 Always Below 1 Ω
U54-1 (SLD+) or U47-4 - Body ground Always 10 kΩ or higher
U54-5 (SLD-) - U47-1 Always Below 1 Ω
U54-5 (SLD-) or U47-1 - Body ground Always 10 kΩ or higher

Front Vertical Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U54,U52,U34)Location & Routing

Click Connector(U54)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(U52)Seat>Front Seat Wire RH / Front Seat Wire LH>Power Seat Tilt Motor Assembly LH

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U54-7 (FRV+) - U52-1 Always Below 1 Ω
U54-7 (FRV+) or U52-1 - Body ground Always 10 kΩ or higher
U34-4 (FRV-) - U52-4 Always Below 1 Ω
U34-4 (FRV-) or U52-4 - Body ground Always 10 kΩ or higher

Lifter Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U54,U50,U34)Location & Routing

Click Connector(U54)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(U50)Seat>Front Seat Wire RH / Front Seat Wire LH>Power Seat Lifter Motor Assembly LH

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U54-6 (LFT+) - U50-1 Always Below 1 Ω
U54-6 (LFT+) or U50-1 - Body ground Always 10 kΩ or higher
U34-5 (LFT-) - U50-4 Always Below 1 Ω
U34-5 (LFT-) or U50-4 - Body ground Always 10 kΩ or higher

Reclining Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U54,V19,U34)Location & Routing

Click Connector(U54)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(V19)Seat>No. 2 Front Seat Wire RH / No. 2 Front Seat Wire LH>Reclining Motor (Front Seatback Frame Sub-Assembly LH)

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U54-10 (RCL+) - V19-4 Always Below 1 Ω
U54-10 (RCL+) or V19-4 - Body ground Always 10 kΩ or higher
U34-6 (RCL-) - V19-1 Always Below 1 Ω
U34-6 (RCL-) or V19-1 - Body ground Always 10 kΩ or higher

Front Lumbar Support Motor
Tester Connection Condition Specified Condition

Click Location & Routing(U54,V17,U34)Location & Routing

Click Connector(U54)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

Click Connector(V17)Seat>No. 2 Front Seat Wire RH / No. 2 Front Seat Wire LH>Lumbar Support Adjuster Assembly LH

Click Connector(U34)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U54-9 (L+) - V17-1 Always Below 1 Ω
U54-9 (L+) or V17-1 - Body ground Always 10 kΩ or higher
U34-3 (L-) - V17-2 Always Below 1 Ω
U34-3 (L-) or V17-2 - Body ground Always 10 kΩ or higher




Result:
Proceed to
OK
NG



OK

REPLACE POSITION CONTROL ECU ASSEMBLY

for SFTM Made: Click hereVehicle Interior>SEAT>POWER SEAT CONTROL ECU (for SFTM Made)>REMOVAL

for GTMC Made: Click hereVehicle Interior>SEAT>POWER SEAT CONTROL ECU (for GTMC Made)>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT POWER SEAT SWITCH LH)
a.

Disconnect the U35 position control ECU assembly connector.


b.

for SFTM Made

i.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Ground
Tester Connection Condition Specified Condition

Click Location & Routing(U37)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

U37-20 (GND) - Body ground Always Below 1 Ω

Slide Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-6 (SLDR) - U35-23 (SLDR) Always Below 1 Ω
U37-6 (SLDR) or U35-23 (SLDR) - Body ground Always 10 kΩ or higher
U37-7 (SLDF) - U35-9 (SLDF) Always Below 1 Ω
U37-7 (SLDF) or U35-9 (SLDF) - Body ground Always 10 kΩ or higher

Reclining Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-1 (RCLR) - U35-22 (RCLR) Always Below 1 Ω
U37-1 (RCLR) or U35-22 (RCLR) - Body ground Always 10 kΩ or higher
U37-2 (RCLF) - U35-8 (RCLF) Always Below 1 Ω
U37-2 (RCLF) or U35-8 (RCLF) - Body ground Always 10 kΩ or higher

Front Vertical Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-4 (FUP) - U35-6 (FUP) Always Below 1 Ω
U37-4 (FUP) or U35-6 (FUP) - Body ground Always 10 kΩ or higher
U37-5 (FDWN) - U35-20 (FDWN) Always Below 1 Ω
U37-5 (FDWN) or U35-20 (FDWN) - Body ground Always 10 kΩ or higher

Lifter Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-3 (LUP) - U35-7 (LUP) Always Below 1 Ω
U37-3 (LUP) or U35-7 (LUP) - Body ground Always 10 kΩ or higher
U37-8 (LDWN) - U35-21 (LDWN) Always Below 1 Ω
U37-8 (LDWN) or U35-21 (LDWN) - Body ground Always 10 kΩ or higher

Lumbar Support Adjustment Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-17 (R) - U35-18 (R) Always Below 1 Ω
U37-17 (R) or U35-18 (R) - Body ground Always 10 kΩ or higher
U37-14 (H) - U35-4 (H) Always Below 1 Ω
U37-14 (H) or U35-4 (H) - Body ground Always 10 kΩ or higher




c.

for GTMC Made

i.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Ground
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-20 (GND) - U35-12 (SGND) Always Below 1 Ω

Slide Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-6 (SLDR) - U35-23 (SLDR) Always Below 1 Ω
U37-6 (SLDR) or U35-23 (SLDR) - Body ground Always 10 kΩ or higher
U37-7 (SLDF) - U35-9 (SLDF) Always Below 1 Ω
U37-7 (SLDF) or U35-9 (SLDF) - Body ground Always 10 kΩ or higher

Reclining Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-1 (RCLR) - U35-22 (RCLR) Always Below 1 Ω
U37-1 (RCLR) or U35-22 (RCLR) - Body ground Always 10 kΩ or higher
U37-2 (RCLF) - U35-8 (RCLF) Always Below 1 Ω
U37-2 (RCLF) or U35-8 (RCLF) - Body ground Always 10 kΩ or higher

Front Vertical Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-4 (FUP) - U35-6 (FRVU) Always Below 1 Ω
U37-4 (FUP) or U35-6 (FRVU) - Body ground Always 10 kΩ or higher
U37-5 (FDWN) - U35-20 (FRVD) Always Below 1 Ω
U37-5 (FDWN) or U35-20 (FRVD) - Body ground Always 10 kΩ or higher

Lifter Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-3 (LUP) - U35-7 (LFTU) Always Below 1 Ω
U37-3 (LUP) or U35-7 (LFTU) - Body ground Always 10 kΩ or higher
U37-8 (LDWN) - U35-21 (LFTD) Always Below 1 Ω
U37-8 (LDWN) or U35-21 (LFTD) - Body ground Always 10 kΩ or higher

Lumbar Support Adjustment Function
Tester Connection Condition Specified Condition

Click Location & Routing(U37,U35)Location & Routing

Click Connector(U37)Seat>Front Seat Wire RH / Front Seat Wire LH>Front Power Seat Switch LH

Click Connector(U35)Seat>Front Seat Wire RH / Front Seat Wire LH>Position Control ECU Assembly LH

U37-17 (R) - U35-18 (LFLR) Always Below 1 Ω
U37-17 (R) or U35-18 (LFLR) - Body ground Always 10 kΩ or higher
U37-14 (H) - U35-4 (LFLF) Always Below 1 Ω
U37-14 (H) or U35-4 (LFLF) - Body ground Always 10 kΩ or higher




Result:
Proceed to
OK
NG



OK

REPLACE POSITION CONTROL ECU ASSEMBLY

for SFTM Made: Click hereVehicle Interior>SEAT>POWER SEAT CONTROL ECU (for SFTM Made)>REMOVAL

for GTMC Made: Click hereVehicle Interior>SEAT>POWER SEAT CONTROL ECU (for GTMC Made)>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR