Only Rear Switch Cannot Operate Rear Sunshade

INTERIOR: REAR SUNSHADE SYSTEM: Only Rear Switch Cannot Operate Rear Sunshade
- Only Rear Switch Cannot Operate Rear Sunshade

DESCRIPTION

A rear sunshade signal is sent from the rear power seat switch to the luggage room junction block assembly (rear junction block ECU) through CAN communication, and the rear sunshade operates.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)

(a) Clear the DTCs Rear Sunshade System.

(b) Check for DTCs Rear Sunshade System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM U0210
A -- Continue to next step.

2. CHECK VEHICLE EQUIPMENT

(a) Check if the vehicle is equipped with the Ottoman.

Result





B -- READ VALUE USING TECHSTREAM (REAR CONSOLE SWITCH)
A -- Continue to next step.

3. READ VALUE USING TECHSTREAM (REAR CONSOLE SWITCH)

(a) Use the Data List to check if the rear sunshade switch is functioning properly Rear Sunshade System.

Rear Console Switch





OK:

Rear sunshade raises or lowers.

NG -- CHECK HARNESS AND CONNECTOR (CURTAIN SWITCH - REAR POWER SEAT SWITCH)

OK -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure

4. CHECK HARNESS AND CONNECTOR (CURTAIN SWITCH - REAR POWER SEAT SWITCH)





(a) Disconnect the z57 curtain switch connector.

(b) Disconnect the z56 power seat switch connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. REPLACE CURTAIN SWITCH ASSEMBLY (REAR SUNSHADE SWITCH)

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

HINT
* for Power Seat Disassembly
* for Ottoman Disassembly
* for Fixed Seat Type Disassembly

(b) 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





D -- REPLACE REAR POWER SEAT SWITCH Disassembly

C -- REPLACE REAR POWER SEAT SWITCH Disassembly

B -- REPLACE REAR POWER SEAT SWITCH Disassembly

A -- END (CURTAIN SWITCH ASSEMBLY IS DEFECTIVE)

6. READ VALUE USING TECHSTREAM (REAR CONSOLE SWITCH)

(a) Use the Data List to check if the rear sunshade switch is functioning properly Rear Sunshade System.

Rear Console Switch





OK:

Rear sunshade raises or lowers.

NG -- REPLACE REAR POWER SEAT SWITCH Disassembly

OK -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure