Only Rear Switch Cannot Operate Rear Sunshade: Procedure

1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Check for DTCs. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   DTC is not output	A
   DTC U0210 is output	B

B → See step   7 

A: Go to next step 

1. Check if the vehicle is equipped with the Ottoman.
   RESULT
   
   

   Result	Proceed to
   except 4-Passenger with Ottoman	A
   for 4-Passenger with Ottoman	B

B → See step   6 

A: Go to next step 

1. Use the Data List to check if the rear sunshade switch is functioning properly. Refer to DATA LIST / ACTIVE TEST .
   REAR CONSOLE SWITCH
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Rear Shade Switch	Rear sunshade switch / ON or OFF	ON: Rear sunshade switch pressed OFF: Rear sunshade switch not pressed	-

   OK

   Rear sunshade raises or lowers.

NG → See step   4 

OK → See step   8 

Fig 1: Identifying Z56 Rear Power Seat Switch And Z57 Curtain Switch Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the z57 curtain switch connector.
2. Disconnect the z56 power seat switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   z57-8 (SW1) - z56-20 (SW1)	Always	Below 1 Ω
   z57-15 (GND) - z56-5 (GND)	Always	Below 1 Ω
   z57-8 (SW1) - Body ground	Always	10 kΩ or higher
   z57-15 (GND) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Temporarily replace the curtain switch assembly with a new or normally functioning one.

   HINT: 

   • for Power Seat. Refer to DISASSEMBLY
   • for Ottoman. Refer to DISASSEMBLY
   • for Fixed Seat Type. Refer to DISASSEMBLY
2. Check that the rear sunshade can be raised and lowered by using the curtain switch assembly.

   OK

   Rear sunshade can be raised and lowered with curtain switch assembly.

   RESULT
   
   

   Result	Proceed to
   OK	A
   NG (for Power Seat)	B
   NG (for Ottoman)	C
   NG (for Fixed Seat Type)	D

D → See step   11 

C → See step   10 

B → See step   9 

A → END (CURTAIN SWITCH ASSEMBLY IS DEFECTIVE) 

1. Use the Data List to check if the rear sunshade switch is functioning properly. Refer to DATA LIST / ACTIVE TEST .
   REAR CONSOLE SWITCH
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Rear Shade Switch	Rear sunshade switch / ON or OFF	ON: Rear sunshade switch pressed OFF: Rear sunshade switch not pressed	-

   OK

   Rear sunshade raises or lowers.

NG → See step   10 

OK → See step   12