B2542
SLIDING ROOF / CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2542: Abnormal Luggage Door Drive Motor LH Pulse
B2542 - Abnormal Luggage Door Drive Motor LH Pulse
DESCRIPTION
The sliding roof control ECU assembly controls the speed of the luggage door using pulse signals that are generated by the rotation of the luggage door drive gear assembly LH (luggage motor LH).
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
Before starting troubleshooting, check that there are no mechanical problems.
PROCEDURE
1. READ VALUE USING TECHSTREAM (LUGGAGE PULSE/LH VALUE)
(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 -- CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR HINGE LH - SLIDING ROOF CONTROL ECU)
OK -- REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY
2. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR HINGE LH - SLIDING ROOF CONTROL ECU)
(a) Disconnect the Q43 and Q35 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.
3. CHECK LUGGAGE COMPARTMENT DOOR HINGE ASSEMBLY LH (HARNESS AND CONNECTOR)
(a) Disconnect the Q43 and A connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE LUGGAGE COMPARTMENT DOOR HINGE ASSEMBLY LH (HARNESS OR CONNECTOR)
OK -- Continue to next step.
4. CHECK SLIDING ROOF CONTROL ECU ASSEMBLY
(a) Reconnect the Q35 and Q45 connectors.
(b) Disconnect the A connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- REPLACE SLIDING ROOF CONTROL ECU ASSEMBLY
OK -- REPLACE LUGGAGE DOOR DRIVE GEAR ASSEMBLY LH (LUGGAGE MOTOR LH)