SUNROOF MOTOR INSPECTION


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1.  Measure the voltage at each terminal (other than terminal G).

•  If not as specified, inspect the parts listed under “Inspection item” and the related wiring harnesses.

2.  Disconnect the negative battery cable.

3.  Verify that continuity at terminal G is as indicated in the Terminal Voltage Table (Reference).

4.  If the parts and wiring harnesses are normal but the system still does not work properly, replace the sunroof relay.


Terminal Voltage Table (Reference)

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Terminal

Signal

Connected to

Test condition

Voltage (V)/Continuity

Inspection item

A
Slide open
Sunroof switch
Sunroof is fully opening.
B+
Sunroof switch
Other
1.0 or less
B
Slide close/tilt down
Sunroof switch
Sunroof is closing/tilting down.
B+
Sunroof switch
Other
1.0 or less
C
Tilt up
Sunroof switch
Sunroof is tilting up.
B+
Sunroof switch
Other
1.0 or less
E
IG2
AIR COND 10 A fuse
Switch the ignition ON.
B+
AIR COND 10 A fuse
Other
1.0 or less
F
Vehicle speed
Instrument cluster
Pulse signal
-
•  Instrument cluster
•  Related wiring harnesses
G
GND
GND
Under any condition: Check for continuity to ground.
Continuity
GND
H
Communication
BCM
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
-
•  BCM
•  Related wiring harnesses
J
Power supply
SUN ROOF 15 A fuse
Under any condition
B+
SUN ROOF 15 A fuse