It Does Not Function With Manual Operation. (With Memory)

CHECK SEAT FUNCTIONS .
Operate each power seat switch and check that each power seat function operates normally.

Does all function fail to operate?

Yes: Go to 2

No: Check the motor which does not operate. Ref. to SEATS>Power Seat System>INSPECTION>SOME MOTORS DO NOT OPERATE. (WITHOUT MEMORY) .
CHECK FUSE .
Check the power seat fuse inside the fuse box.

Is the fuse blown out?

Yes: Replace the appropriate fuse.

No: Go to 3
CHECK POWER SUPPLY CIRCUIT .
1. Disconnect the connector of power seat switch assembly.
2. Measure the voltage between harness connector and chassis ground.
  Connector & terminal
  
  (R155) No. 10 (+) - Chassis ground (-):
  
  (R156) No. 3 (+) - Chassis ground (-):
  
  (R156) No. 8 (+) - Chassis ground (-):
Is the voltage 10 V or more?

Yes: Go to 4

No: Check body harness.
CHECK POWER SUPPLY CIRCUIT .
Measure the resistance between power seat switch harness connector and chassis ground.

Connector & terminal

(R156) No. 12 - Chassis ground:

(R156) No. 14 - Chassis ground:

Is the resistance less than 10 Ω?

Yes: Go to 5

No: Check body harness.
CHECK IGNITION CIRCUIT .
Measure the voltage between harness connector and chassis ground while turning the ignition switch to ON.

Connector & terminal

(R155) No. 11 (+) - Chassis ground (-):

Is the resistance 10 V or more?

Yes: Go to 6

No: Check body harness.
CHECK BODY INTEGRATED UNIT CIRCUIT .
Measure the resistance between harness connector and chassis ground with the select lever in the "P" position.

Connector & terminal

(R155) No. 12 - Chassis ground:

Is the resistance less than 10 Ω?

Yes: Go to 7

No: Check body harness.
CHECK SWITCH .
1. Disconnect the connector of power seat switch assembly.
2. Measure the resistance between terminals when operating each switch. Ref. to SEATS>Power Seat System>INSPECTION>CHECK POWER SEAT SWITCH .
Is the inspection result normal?

Yes: Replace the power seat control module.

No: Replace the power seat switch assembly.