Rear Sunshade Does Not Operate With Rear Sunshade Switch

INTERIOR: REAR SUNSHADE SYSTEM: Rear Sunshade does not Operate with Rear Sunshade Switch

Rear Sunshade does not Operate with Rear Sunshade Switch

SYSTEM DESCRIPTION

When the rear sunshade switch is pressed, a signal is sent directly to the integration control and panel assembly. Then the signal is sent through the multiplex communication line to the No. 1 junction block (luggage room junction block ECU), which operates the rear sunshade relay.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (REAR SUNSHADE SWITCH)
(a) Check the Data List for proper functioning of the rear sunshade switch.
Integration Control and Panel Assembly:






OK:
"ON" (rear sunshade switch is pressed) appears on the screen.
NG -- REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY
OK -- Continue to next step.
2. INSPECT FUSE (RR J/B, RR S/SHADE)
(a) Remove the RR J/B fuse from the engine room No. 1 junction block.
(b) Remove the RR S/SHADE fuse from the luggage room junction block.
(c) Measure the resistance of the fuses.
Standard resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
3. CHECK WIRE HARNESS (NO. 1 JUNCTION BLOCK ASSEMBLY - RELAY, BATTERY AND BODY GROUND)





(a) Disconnect the V25 relay connector.
(b) Remove the LB, LC and LF Junction Block connectors.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:





(d) Measure the voltage of the wire harness side connector.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
4. INSPECT REAR SUNSHADE ASSEMBLY (MOTOR OPERATION)
(a) Check the rear sunshade assembly On-Vehicle Inspection.
OK:
Rear sunshade raises and lowers.
NG -- REPLACE REAR SUNSHADE ASSEMBLY
OK -- Continue to next step.
5. CHECK OPERATION OF REAR SUNSHADE ASSEMBLY
(a) After replacing the rear sunshade relay with a normal one, check that the rear sunshade can operate normally.
OK:
Rear sunshade can operate normally.
NG -- REPLACE No. 1 JUNCTION BLOCK ASSEMBLY
OK -- NORMAL (REAR SUNSHADE RELAY DEFECTIVE)