B2522

CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2522: Roof Close Switch LH Malfunction

DTC B2522 - Roof Close Switch LH Malfunction

DESCRIPTION

The roof close switch is located at the inserting hole of the pillar guide pin.
The roof close switch detects if the roof panel is fully closed or not.
The roof close switch is turned ON when the roof is fully closed and turned OFF when it is fully open.






WIRING DIAGRAM





INSPECTION PROCEDURE
HINT: Continuously repeating the roof open/close operation may stop the motor operation due to a function of the positive temperature coefficient thermistor. However, this is not a malfunction.

PROCEDURE

1. READ VALUE USING TECHSTREAM (ROOF CLOSE LH)
(a) Check the Data List for proper functioning of the roof close LH.

Retractable Hardtop





OK:
On the Techstream screen, each item changes between ON and OFF according to above chart.
OK -- REPLACE SLIDING ROOF CONTROL ECU
NG -- Continue to next step.
2. INSPECT SLIDE ROOF LIMIT SWITCH (ROOF CLOSE LH)




(a) Remove the slide roof limit switch Removal.
(b) Measure the resistance of the switch connector.
Standard resistance:






NG -- REPLACE SLIDE ROOF LIMIT SWITCH
OK -- Continue to next step.
3. CHECK WIRE HARNESS (ECU - SLIDE ROOF LIMIT SWITCH (ROOF CLOSE LH))




(a) Disconnect the S17 ECU connector.
(b) Disconnect the L8 switch connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
4. CHECK SLIDE ROOF LIMIT SWITCH OPERATION (ROOF CLOSE LH)




(a) Disconnect the L8 switch connector.
(b) While manually operating the roof, measure the resistance of the switch Manual Open Operation.
Standard resistance:






NG -- REPLACE SLIDE ROOF LIMIT SWITCH
OK -- REPLACE SLIDING ROOF CONTROL ECU