B2508

CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2508: Open in Luggage Door Drive Motor LH Circuit

DTC B2508 - Open in Luggage Door Drive Motor LH Circuit

DESCRIPTION

With the roof control switch being pressed, the sliding roof control ECU operates the roof panel, luggage door and package tray (in that order).
The ECU operates the luggage door while adjusting the speed of the left and right motors.






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. INSPECT FUSE (LGG LH)
(a) Remove the LGG LH fuse from the luggage junction block.
(b) Measure the resistance of the fuse.
Standard resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
2. INSPECT LUGGAGE DOOR DRIVE GEAR ASSEMBLY LH




(a) Remove the luggage door drive gear LH Removal.
(b) Apply battery voltage to the drive gear terminals and check operation of the luggage door drive gear LH.
OK:






NG -- REPLACE LUGGAGE DOOR DRIVE GEAR ASSEMBLY LH
OK -- Continue to next step.
3. CHECK WIRE HARNESS FOR OPEN CIRCUIT (ECU - LUGGAGE DOOR DRIVE GEAR LH)




(a) Disconnect the S21 ECU connector.
(b) Disconnect the L17 drive gear connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE SLIDING ROOF CONTROL ECU