Power Seat Power Easy Access System Function does not Operate: Procedure

1. Check that each function of the power seat operates normally by using the front power seat switch. Refer to OPERATION CHECK [09/2012 - ] .

   OK

   Each function of power seat operates normally by using seat switches.

NG → See step   7 

OK: Go to next step 

1. Check the Data List for proper functioning of the seat buckle switch. Refer to DATA LIST / ACTIVE TEST [09/2012 - ] .
   DRIVER SEAT
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Driver Seat Buckle SW	Driver seat seat belt usage / ON or OFF	ON: Tongue plate is engaged OFF: Tongue plate is not engaged	-

   OK

   On Techstream screen, each item changes between ON and OFF according to above chart.

NG → See step   5 

OK: Go to next step 

1. Replace the front power seat switch. Refer to DISASSEMBLY [09/2012 - ] .

NEXT: Go to next step 

1. Check that the power seat power easy access system operates normally when engaging and disengaging the tongue plate of the seat belt with the shift lever in P. Refer to OPERATION CHECK [09/2012 - ] .

   OK

   Power seat power easy access system is normal.

NG → REPLACE MAIN BODY ECU 

OK → END (FRONT POWER SEAT SWITCH (for Driver Side) IS DEFECTIVE) 

1. Remove the front seat inner belt assembly. Refer to REMOVAL [09/2012 - ] .

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 (+) - 2 (E)	Seat belt fastened	Below 1 Ω
   1 (+) - 2 (E)	Seat belt unfastened	10 kΩ or higher

NG → See step   8 

OK: Go to next step 

1. Disconnect the e46 switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the e54 inner belt connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   e46-15 (DBCL) - e54-1 (+)	Always	Below 1 Ω
   e54-2 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   9