Front and Rear Switch Cannot Operate Rear Sunshade: Procedure

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

   Result	Proceed to
   No DTC is output	A
   DTC U0141, U0210, U1114 is output	B
   DTC U1127 is output	C

C → See step   10 

B → See step   9 

A: Go to next step 

1. Select the Active Test, use the Techstream to generate a control command, and then check that the shade raises/lowers.
   BODY NO. 4
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Rear Sunshade Operation	Rear Sunshade Operation	Down, No or Up	-

   OK

   Rear sunshade raises or lowers

NG → See step   4 

OK: Go to next step 

1. Use the Data List to check if the rear sunshade limit switch is functioning properly.
   BODY NO. 4
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Rear Sunshade Close	Status of the rear sunshade close/YES or NO	YES: Rear sunshade limit switch is OFF (Rear sunshade is lowered) NO: Rear sunshade limit switch is ON (Rear sunshade is raised)	-

   OK

   Rear sunshade raises or lowers

NG → See step   8 

OK: Go to next step 

1. Remove the RR S/SHADE fuse from luggage room junction block.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   RR S/SHADE fuse	Always	Below 1 Ω

NG → REPLACE FUSE 

OK: Go to next step 

1. Disconnect the LG junction block connector.
   Fig 1: Identifying LG Junction Block Connector

   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
   LG-1 - Body ground	Always	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the S25 shade connector.
   Fig 2: Identifying S25 Rear Sunshade Assembly & S61 Rear Junction Block ECU Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the S61 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   S25-2 (RSMU) - S61-4 (MU)	Always	Below 1 Ω
   S25-1 (RSMD) - S61-3 (MD)	Always	Below 1 Ω
   S25-4 (RSE) - Body ground	Always	Below 1 Ω
   S25-2 (RSMU) - Body ground	Always	10 kΩ or higher
   S25-1 (RSMD) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the rear sunshade assembly. Refer to REMOVAL .
   Fig 3: Identifying Rear Sunshade Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Apply battery voltage and check the operation of the window shade motor.
   OK
   
   

   Measurement Condition	Specified Condition
   Battery positive (+) → 1 (RSMD) Battery negative (-) → 4 (RSE)	Sunshade lowers
   Battery positive (+) → 2 (RSMU) Battery negative (-) → 4 (RSE)	Sunshade raises

NG → See step   12 

OK → REPLACE LUGGAGE ROOM JUNCTION BLOCK ASSEMBLY (REAR JUNCTION BLOCK ECU) 

1. Disconnect the S25 shade connector.
   Fig 4: Identifying S25 Rear Sunshade Assembly & S61 Rear Junction Block ECU Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the S61 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   S25-3 (RSL) - S61-22 (LMT)	Always	Below 1 Ω
   S25-3 (RSL) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   11