Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE
Terminals Of Ecu
- MULTIPLEX NETWORK MASTER SWITCH ASSY TERMINAL DESCRIPTION
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition E (I6-1) - Body ground W-B - Body ground Ground Always Below 1 V SGND (I6-2) - Body ground W-B - Body ground Ground Always Below 1 V VC (I6-3) - E (I6-1) L - Body ground Power window motor position sensor power source Always 10 to 14 V DU (I6-4) - Body ground P - Body ground Power window motor UP output signal (Driver side) Ignition switch on (IG), power window OFF --> UP 0 V --> 10 to 14 V L (I6-5) - E (I6-1) G - Body ground Door lock signal Door lock switch position is OFF --> LOCK 10 to 14 V --> 0V B (I6-6) - E (I6-1) R - Body ground Power window switch power source Always 10 to 14 V BW (I6-7) - E (I6-1) W - Body ground Power window switch power source Always 10 to 14 V UL (I6-8) - E (I6-1) L - Body ground Door lock signal Door lock switch position is OFF --> UNLOCK 10 to 14 V --> 0 V DD (I6-9) - Body ground BR - Body ground Power window motor DOWN output signal (Driver side) Ignition switch on (IG), power window OFF --> DOWN 0 V --> 10 to 14 V RLD (I6-10) - Body ground R - Body ground Power window motor DOWN output signal (Rear RL) Ignition switch on (IG), power window OFF --> DOWN 0 V --> 10 to 14 V IG (I6-11) - E (I6-1) GR - Body ground Power window switch power source Ignition switch OFF --> ON 0 V -->10 to 14 V RLU (I6-12) - Body ground BR - Body ground Power window motor UP output signal (Rear RL) Ignition switch on (IG), power window OFF --> UP 0 V --> 10 to 14 V TX (I6-13) - E (I6-1) B - Body ground Communication circuit - - PLS1 (I6-14) - E (I6-1) LG - Body ground Power window motor position sensor input signal (Driver side) Power window operating Pulse generation PCT (I6-15) - E (I6-1) Y - Body ground Power window lock switch output signal Ignition switch on (IG), power window lock switch NORMAL --> LOCK 10 to 14 V --> 0 V RRD (I6-16) - Body ground V - Body ground Power window motor DOWN output signal (Rear RH) Ignition switch on (IG), power window OFF --> DOWN 0 V --> 10 to 14 V PLS2 (I6-17) - E (I6-1) LG - Body ground Power window motor position sensor input signal (Driver side) Power window operating Pulse generation RRU (I6-18) - Body ground L - Body ground Power window motor UP output signal (Rear RHL) Ignition switch on (IG), power window OFF --> UP 0 V --> 10 to 14 V - MULTIPLEX NETWORK SWITCH ASSY
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TERMINAL DESCRIPTIONSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition D (H6-1) - Body ground R - Body ground Power window motor DOWN output signal (Front passenger side) Ignition switch on (IG), power window OFF --> DOWN 0 V --> 10 to 14 V RX (H6-2) - E (H6-7) GR - Body ground Communication circuit - - PLS1 (H6-3) - E (H6-7) B - Body ground Power window motor position sensor input signal (Driver side) Power window operating Pulse generation PLS2 (H6-4) - E (H6-7) LG - Body ground Power window motor position sensor input signal (Driver side) Power window operating Pulse generation VCC (H6-5) - E (H6-7) W - Body ground Power window motor position sensor power source Always 10 to 14 V U (H6-6) - Body ground G - Body ground Power window motor UP output signal (Front passenger side) Ignition switch on (IG), power window OFF --> UP 0 V --> 10 to 14 V E (H6-7) - Body ground W-B - Body ground Ground Always Below 1 V SGND (H6-8) - Body ground W-B - Body ground Ground Always Below 1 V PCT (H6-11) - E (H6-7) BR - Body ground Power window lock switch output signal Ignition switch on (IG), power window lock switch NORMAL --> LOCK 10 to 14 V --> 0 V BW (H6-12) - E (H6-7) V - Body ground Power window switch power source Always 10 to 14 V
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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