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 LH. Refer to OPERATION CHECK [06/2012 - ] .

   Result

   Result	Proceed to
   Power seat functions operate normally	A
   All power seat functions do not operate	B
   One or more power seat motors do not operate	C

B → See step   10 

C → See step   11 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Driver Seat / Data List.
5. Read the Data List according to the display on the Techstream.
   DRIVER SEAT
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Driver Seat Buckle SW	Driver seat belt buckle switch / ON or OFF	ON: Driver seat belt fastened OFF: Driver seat belt unfastened	-

   OK

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

NG → See step   8 

OK: Go to next step 

1. Disconnect the P24 front seat outer belt assembly LH connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   P24-1 (IG) - Body ground	Engine switch on (IG)	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the X10 front power seat switch LH connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P24-2 (L) - X10-9 (DRDC)	Always	Below 1 Ω
   P24-2 (L) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Check that the seat belt tension reducer system. Refer to SYSTEM DESCRIPTION [06/2012 - ] .

   OK

   Seat belt tension reducer system is normal.

NG → See step   15 

OK: Go to next step 

1. Replace the front power seat switch LH. Refer to REMOVAL [06/2012 - ] .

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 [06/2012 - ] .

   OK

   Power seat power easy access system is normal.

NG → See step   12 

OK → END (FRONT POWER SEAT SWITCH LH WAS DEFECTIVE) 

1. Remove the front seat inner belt assembly LH. Refer to REMOVAL [06/2012 - ] .

   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	Driver seat belt unfastened	10 kΩ or higher
   1 - 2	Driver seat belt fastened	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Front Seat Inner Belt Assembly LH)

NG → See step   13 

OK: Go to next step 

1. Disconnect the X10 front power seat switch LH connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   X10-10 (DBCL) - X16-1	Always	Below 1 Ω
   X16-2 - Body ground	Always	Below 1 Ω
   X10-10 (DBCL) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   14