Diagnosis Procedure
1.
CHECK LIN COMMUNICATION SIGNAL
Ignition switch OFF.
Disconnect sunshade motor assembly harness connector.
Ignition switch ON.
Check signal between sunshade motor assembly harness connector and ground using an oscilloscope.
(+)
(−)
Signal
Sunshade motor assembly
Connector
Terminal
R5
9
Ground
Is the inspection result normal?
INSPECTION END
.
2.
CHECK LIN COMMUNICATION CIRCUIT
Ignition switch OFF.
Disconnect BCM connector.
Check continuity between BCM harness connector and sunshade motor assembly harness connector.
BCM
Sunshade motor assembly
Continuity
Connector
Terminal
Connector
Terminal
M18
24
R5
9
Existed
Is the inspection result normal?
Replace BCM. Refer to
Removal and Installation
.
Repair or replace harness.