Rear Sunshade Shift-Linked Function Does Not Operate When Shift Lever Is Moved To R Position

INTERIOR: REAR SUNSHADE SYSTEM: Rear Sunshade Shift-linked Function does not Operate when Shift Lever is Moved to R Position

Rear Sunshade Shift-linked Function does not Operate when Shift Lever is Moved to R Position

SYSTEM DESCRIPTION

When the power switch is ON (IG) and the rear sunshade is raised, moving the shift lever to R causes the PNP switch to send a reverse-linked signal to the ECM. Then the ECM sends the signal through the multiplex communication line to the multiplex network rear ECU (luggage room junction block ECU), which sends the signal to the rear sunshade relay. The relay then lowers the rear sunshade.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (REVERSE SIGNAL CONTROL)
(a) Make sure that the rear sunshade lowers.
(b) Select the Active Test, use the Techstream to generate a control command, and then check that the rear sunshade can be lowered.

Luggage Room Junction Block ECU





OK:
Rear sunshade can be lowered.
OK -- GO TO ENGINE CONTROL SYSTEM
NG -- Continue to next step.
2.
CHECK WIRE HARNESS (REAR SUNSHADE - LUGGAGE ROOM JUNCTION BLOCK)




(a) Disconnect the V25 relay connector.
(b) Disconnect the LC junction block connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3.
CHECK LUGGAGE ROOM JUNCTION BLOCK ASSEMBLY




(a) Disconnect the LC junction block connector.
(b) Measure the voltage of the junction block.
Standard voltage:






NG -- REPLACE LUGGAGE ROOM JUNCTION BLOCK ASSEMBLY
OK -- REPLACE REAR SUNSHADE ASSEMBLY