ROOF SUNSHADE SYSTEM TERMINALS OF ECU
CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY
Disconnect the z3 drive gear connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
z3-1 - z3-2
W-R - W-B
+B power supply
Always
11 to 14 V
z3-5 - z3-2
L-B - W-B
Power supply
Ignition switch off
Below 1 V
z3-5 - z3-2
L-B - W-B
Power supply
Ignition switch ON
11 to 14 V
z3-9 - z3-2
L - W-B
Sliding roof motor open
Open switch off
10 kΩ or higher
z3-9 - z3-2
L - W-B
Sliding roof motor open
Open switch on
Below 1 Ω
z3-7 - z3-2
G - W-B
Sliding roof motor close
Close switch off
10 kΩ or higher
z3-7 - z3-2
G - W-B
Sliding roof motor close
Close switch on
Below 1 Ω
z3-2 - Body ground
W-B - Body ground
Ground
Always
Below 1 Ω
If the result is not as specified, the wire harness may have a malfunction.