SUNROOF RELAY INSPECTION

BME091569873202

1. Remove the headliner.

2. Connect the sunroof switch connector.

3. Connect the negative battery cable.

4. Measure the voltage at the sunroof relay terminals as indicated below.

5. Disconnect the sunroof relay connector before inspecting for continuity at terminal 2N.

• If not as specified, inspect the parts listed under "Action."
• If the parts and wiring harnesses are okay but the system still does not work properly, replace the sunroof relay.

Terminal Voltage Table (Reference)

Terminal

Signal

Connected to

Test condition

Voltage (V)/Continuity

Action

2A
Tilt up
Sunroof switch
While sunroof is tilting up
0
• Inspect sunroof switch
Other
5
2B
-
-
-
-
-
2C
Slide close
Sunroof switch
While sunroof is closing
0
• Inspect sunroof switch
Other
5
2D
Tilt down
Sunroof switch
While sunroof is tilting down
0
• Inspect sunroof switch
Other
5
2E
Slide open
Sunroof switch
While sunroof is opening
0
• Inspect sunroof switch
Other
5
2F
Slide close tilt up
Sunroof motor (Limit switch)
Sunroof is closed or tilted up
0
• Inspect sunroof switch
• Inspect sunroof motor (Limit switch)
Sunroof is open
5
2H
Slide open/tilt down
Sunroof motor (Limit switch)
Sunroof is open or closed
0
• Inspect sunroof switch
• Inspect sunroof motor (Limit switch)
Sunroof is tilted up
5
2L
Slide close
Sunroof motor (Limit switch)
Sunroof is open or tilted up
0
• Inspect sunroof switch
• Inspect sunroof motor (Limit swtich)
Sunroof is closed
5
2J
IG2
Sunroof switch
IG SW is at ON position
B+
• Inspect SUN ROOF 15 A fuse
• Inspect sunroof switch
• Inspect related harness
Other
0
2K
Slide close/tilt up
Sunroof motor
Sunroof is open/tilted down
0
• Inspect sunroof switch
• Inspect sunroof motor
Sunroof is closed/tilted up
B+
Other
0
2M
Slide open/tilt down
Sunroof motor
Sunroof is open/tilted down
B+
• Inspect sunroof switch
• Inspect sunroof motor
Sunroof is closed/tilted up
0
Other
0
2N
Sunroof relay ground
GND
Constant: inspect for continuity to ground
Yes
• Inspect GND