Lexus NX: Terminals Of Ecu

TERMINALS OF ECU

CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

(a) Disconnect the T9 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

(b) Measure the resistance and voltage according to the value(s) in the table below.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

T9-1 (IG) - Body ground

L - Body ground

IG power supply

Power switch off

Below 1 V

Power switch on (IG)

11 to 14 V

T9-4 (UP) - Body ground

W - Body ground

Slide roof switch (UP) signal

Slide roof switch (UP) off → on

1 kΩ or higher → Below 100 Ω

T9-5 (CLS) - Body ground

B - Body ground

Slide roof switch (CLOSE) signal

Slide roof switch (CLOSE) off → on

1 kΩ or higher → Below 100 Ω

T9-6 (DWN) - Body ground

L - Body ground

Slide roof switch (DOWN) signal

Slide roof switch (DOWN) off → on

1 kΩ or higher → Below 100 Ω

T9-7 (OPN) - Body ground

R - Body ground

Slide roof switch (OPEN) signal

Slide roof switch (OPEN) off → on

1 kΩ or higher → Below 100 Ω

T9-8 (B) - Body ground

W - Body ground

Battery power supply

Power switch off

11 to 14 V

T9-12 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click here

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DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Sliding Roof / Troub

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