B2535

SLIDING ROOF / CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2535: Tonneau Cover Switch Malfunction
B2535 - Tonneau Cover Switch Malfunction

DESCRIPTION

Each tonneau cover switch in the deck side trim box RH and LH, and package tray trim side cover RH and LH detects whether the tonneau cover is set to the rearmost position. The switches send signals to the sliding roof control ECU assembly. The sliding roof control ECU assembly determines the permission condition and permits or prohibits metal top operation according to these signals.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Before starting troubleshooting, check that there are no mechanical problems.

PROCEDURE

1. READ VALUE USING TECHSTREAM (TONNEAU COVER SW)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Retractable Hardtop / Data List.

(e) Read the Data List according to the display on the Techstream.

Retractable Hardtop (Sliding Roof Control ECU Assembly)





OK:

The Techstream display changes according to condition as shown in the table.

NG -- INSPECT DECK SIDE TRIM BOX RH (TONNEAU COVER SWITCH (UNDER SIDE))

OK -- REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY

2. INSPECT DECK SIDE TRIM BOX RH (TONNEAU COVER SWITCH (UNDER SIDE))

(a) Check that the wire harness of the deck side trim box RH (tonneau cover switch (under side)) has not been pinched by the body.





(b) Disconnect the P61 connector.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE DECK SIDE TRIM BOX RH (TONNEAU COVER SWITCH (UNDER SIDE))
OK -- Continue to next step.

3. INSPECT PACKAGE TRAY TRIM SIDE COVER LH (TONNEAU COVER SWITCH (UPPER SIDE))

(a) Check that the wire harness of the package tray trim side cover LH (tonneau cover switch (upper side)) has not been pinched by the body.





(b) Disconnect the Q46 connector.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE PACKAGE TRAY TRIM SIDE COVER LH (TONNEAU COVER SWITCH (UPPER SIDE))
OK -- Continue to next step.

4. INSPECT DECK SIDE TRIM BOX LH (TONNEAU COVER SWITCH (UNDER SIDE))

(a) Check that the wire harness of the deck side trim box LH (tonneau cover switch (under side)) has not been pinched by the body.





(b) Disconnect the Q47 connector.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE DECK SIDE TRIM BOX LH (TONNEAU COVER SWITCH (UNDER SIDE))
OK -- Continue to next step.

5. INSPECT PACKAGE TRAY TRIM SIDE COVER RH (TONNEAU COVER SWITCH (UPPER SIDE))

(a) Check that the wire harness of the package tray trim side cover RH (tonneau cover switch (upper side)) has not been pinched by the body.





(b) Disconnect the Q45 connector.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE PACKAGE TRAY TRIM SIDE COVER RH (TONNEAU COVER SWITCH (UPPER SIDE))
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (DECK SIDE TRIM BOX RH - SLIDING ROOF CONTROL ECU ASSEMBLY)

(a) Disconnect the P61 and P53 connectors.





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

Standard Resistance:





Text in Illustration





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

7. CHECK HARNESS AND CONNECTOR (PACKAGE TRAY TRIM SIDE COVER - SLIDING ROOF CONTROL ECU)

(a) Disconnect the Q46, Q45 and Q36 connectors.





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

Standard Resistance:





Text in Illustration





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

8. CHECK HARNESS AND CONNECTOR (PACKAGE TRAY TRIM SIDE COVER LH - DECK SIDE TRIM BOX LH)

(a) Disconnect the Q46 and Q47 connectors.





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

Standard Resistance:





Text in Illustration





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

9. CHECK HARNESS AND CONNECTOR (DECK SIDE TRIM BOX LH - PACKAGE TRAY TRIM SIDE COVER RH)

(a) Disconnect the Q47 and Q45 connectors.





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

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY