LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2009 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Audio/Visual) >> Audio And Visual System >> Terminals Of Ecu
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Terminals Of Ecu

WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. RADIO RECEIVER (for 8 Speakers) 
    Fig 1: Identifying Radio Receiver ECU Connector Terminals (For 8 Speakers)
    G06010455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL DESCRIPTION REFERENCE CHART

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    E103-1 (B) - E103-20 (E) SB - BR Battery Always 11 to 14 V
    E103-2 (ILL+) - E103-20 (E) G - BR Illumination signal Light control switch OFF Below 1 V
    E103-2 (ILL+) - E103-20 (E) G - BR Illumination signal Light control switch TAIL 11 to 14 V
    E103-5 (ATX+) - E103-15 (ATX-) P - B AVC-LAN communication signal Ignition switch ACC 2 to 3 V
    E103-7 (MUTE) - E103-20 (E) LG - BR MUTE signal Audio system is playing Above 3.5 V
    E103-7 (MUTE) - E103-20 (E) LG - BR MUTE signal Audio system is changing Below 1 V
    E103-8 (R+) - E103-20 (E) R - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    E103-9 (L+) - E103-20 (E) B - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    E103-10 (SLD) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    E103-11 (ACC) - E103-20 (E) GR - BR Accessory (ON) Ignition switch ACC 11 to 14 V
    E103-12 (ILL-) - E103-20 (E) W - BR Illumination (rheostat) signal Light control switch OFF Below 1 V
    E103-12 (ILL-) - E103-20 (E) W - BR Illumination (rheostat) signal Light control switch TAIL Pulse generation
    E103-13 (ANT) - E103-20 (E) BE - BR Power source of antenna Radio switch ON and AM or FM 11 to 14 V
    E103-18 (R-) - E103-20 (E) W - BR Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
    E103-19 (L-) - E103-20 (E) G - BR Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
    E103-20 (E) - Body ground BR - Body ground Ground Always Below 1 V
    E26-3 (SPD) - E103-20 (E) V - BR Speed signal from combination meter Ignition switch ON
    Turn drive wheels slowly    		 Pulse generation
    E26-6 (SWG) - E103-20 (E) SB - BR Steering pad switch ground Always Below 1 V
    E26-7 (SW1) - E103-20 (E) BE - BR Steering pad switch signal Steering pad switch not operated 4.5 to 5.5 V
    E26-7 (SW1) - E103-20 (E) BE - BR Steering pad switch signal SEEK+ switch pushed Below 0.5 V
    E26-7 (SW1) - E103-20 (E) BE - BR Steering pad switch signal SEEK - switch pushed 0.86 to 0.95 V
    E26-7 (SW1) - E103-20 (E) BE - BR Steering pad switch signal VOL+ switch pushed 1.91 to 2.01 V
    E26-7 (SW1) - E103-20 (E) BE - BR Steering pad switch signal VOL - switch pushed 3.23 to 3.57 V
    E26-8 (SW2) - E103-20 (E) P - BR Steering pad switch signal Steering pad switch not operated 4.5 to 5.5 V
    E26-8 (SW2) - E103-20 (E) P - BR Steering pad switch signal MODE switch pushed Below 0.5 V
    E26-8 (SW2) - E103-20 (E) P - BR Steering pad switch signal ON HOOK switch pushed 0.86 to 0.95 V
    E26-8 (SW2) - E103-20 (E) P - BR Steering pad switch signal OFF HOOK switch pushed 1.91 to 2.01 V
    E26-8 (SW2) - E103-20 (E) P - BR Steering pad switch signal VOICE switch pushed 3.23 to 3.57 V
    E26-11 (IVO+) - E103-20 (E) G - BR Voice signal "Bluetooth" handsfree voice signal is received A waveform synchronized with sounds is output
    E26-12 (IVO-) - E103-20 (E) R - BR Voice signal "Bluetooth" handsfree voice signal is received A waveform synchronized with sounds is output
    E26-13 (SLD1) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    E26-15 (ARI) - E103-20 (E) B - BR Sound signal (Right) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    E26-16 (ASGN) - E103-20 (E) R - BR Shield ground Always Below 1 V
    E26-17 (ALI) - E103-20 (E) W - BR Sound signal (Left) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    E26-18 (AGND) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    E26-19 (AUXI) - E103-20 (E) L - BR External device connection detection signal External device is connected Below 1 V
    E104-1 (SNS2) - E103-20 (E) Y - BR Microphone connection detection signal Always Below 1 V
    E104-2 (MIC+) - E103-20 (E) B - BR Microphone voice signal "Bluetooth" handsfree function is ON A waveform synchronized with sounds is output
    E104-3 (MACC) - E103-20 (E) R - BR Microphone amplifier power supply Ignition switch off Below 1 V
    E104-3 (MACC) - E103-20 (E) R - BR Microphone amplifier power supply Ignition switch ON 4 to 6 V
    E104-5 (MIC-) - E103-20 (E) W - BR Microphone voice signal "Bluetooth" handsfree function is ON A waveform synchronized with sounds is output
    E104-6 (SGND) - E103-20 (E) Shielded - BR Shielded ground Always Below 1 V
  2. RADIO RECEIVER (Except for 8 Speakers) 
    Fig 2: Identifying Radio Receiver ECU Connector Terminals (Except For 8 Speakers)
    G06010456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL DESCRIPTION REFERENCE CHART

    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    E1-1 (FR+) - E1-7 (E) LG - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    E1-2 (FL+) - E1-7 (E) P - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    E1-3 (ACC) - E1-7 (E) GR - BR Accessory (ON) Ignition switch off Below 1 V
    E1-3 (ACC) - E1-7 (E) GR - BR Accessory (ON) Ignition switch ACC 11 to 14 V
    E1-4 (B) - E1-7 (E) SB - BR Battery Always 11 to 14 V
    E1-5 (FR-) - E1-7 (E) L - BR Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
    E1-6 (FL-) - E1-7 (E) V - BR Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
    E1-7 (E) - Body ground BR - Body ground Ground Always Below 1 V
    E1-8 (ANT) - E1-7 (E) O(2), BE(3) - BR Power source of antenna Radio switch ON and AM or FM 11 to 14 V
    E1-10 (ILL+) - E1-7 (E) G - BR Illumination signal Light control switch OFF Below 1 V
    E1-10 (ILL+) - E1-7 (E) G - BR Illumination signal Light control switch TAIL or HEAD 11 to 14 V
    E2-1 (RR+) - E1-7 (E) R - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    E2-2 (RL+) - E1-7 (E) B - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    E2-3 (RR-) - E1-7 (E) W - BR Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
    E2-5 (ILL-) - E1-7 (E) W - BR Illumination (rheostat) signal Light control switch OFF Below 1 V
    E2-5 (ILL-) - E1-7 (E) W - BR Illumination (rheostat) signal Light control switch TAIL or HEAD Pulse generation
    E2-6 (RL-) - E1-7 (E) Y - BR Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
    E26-3 (SPD) - E1-7 (E) V - BR Speed signal from combination meter Ignition switch ON Turn drive wheels slowly Pulse generation
    E26-6 (SWG) - E1-7 (E)(1) SB - BR Steering pad switch ground Always Below 1 V
    E26-7 (SW1) - E1-7 (E)(1) BE - BR Steering pad switch signal Steering pad switch not operated 4.5 to 5.5 V
    E26-7 (SW1) - E1-7 (E)(1) BE - BR Steering pad switch signal SEEK+ switch pushed Below 0.5 V
    E26-7 (SW1) - E1-7 (E)(1) BE - BR Steering pad switch signal SEEK - switch pushed 0.86 to 0.95 V
    E26-7 (SW1) - E1-7 (E)(1) BE - BR Steering pad switch signal VOL+ switch pused 1.91 to 2.01 V
    E26-7 (SW1) - E1-7 (E)(1) BE - BR Steering pad switch signal VOL - switch pushed 3.23 to 3.57 V
    E26-8 (SW2) - E1-7 (E)(1) P - BR Steering pad switch signal Steering pad switch not operated 4.5 to 5.5 V
    E26-8 (SW2) - E1-7 (E)(1) P - BR Steering pad switch signal MODE switch pushed Below 0.5 V
    E26-15 (ARI) - E1-7 (E) B - BR Sound signal (Right) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    E26-16 (ASGN) - E1-7 (E) R - BR Shield ground Always Below 1 V
    E26-17 (ALI) - E1-7 (E) W - BR Sound signal (Left) External device is playing (When stereo jack is used) A waveform synchronized with sounds is output
    E26-18 (AGND) - Body ground Shielded - Body ground Shield ground Always Below 1 V
    E26-19 (AUXI) - E1-7 (E) L - BR External device connection detection signal External device is connected Below 1 V
    (1) w/ Steering Pad Switch
    (2) TMC Made
    (3) Except TMC Made
  3. STEREO COMPONENT AMPLIFIER (for 8 Speakers) 
Fig 3: Identifying Stereo Component Amplifier Connector Terminals (For 8 Speakers)
G06010457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TERMINAL DESCRIPTION REFERENCE CHART

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
E100-1 (MUTE) - E102-6 (GND) LG - W-B Mute signal from radio receiver Audio system is playing Above 3.5 V
E100-1 (MUTE) - E102-6 (GND) LG - W-B Mute signal from radio receiver Audio system is changing sources Below 1 V
E100-2 (L-) - E102-6 (GND) G - W-B Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
E100-3 (L+) - E102-6 (GND) B - W-B Sound signal (Left) Audio system is playing A waveform synchronized with sounds is output
E100-4 (R-) - E102-6 (GND) W - W-B Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
E100-5 (R+) - E102-6 (GND) R - W-B Sound signal (Right) Audio system is playing A waveform synchronized with sounds is output
E100-7 (TX-) - E100-8 (TX+) B - P AVC-LAN communication signal Ignition switch ACC 2 to 3 V
E100-11 (SPD) - E102-6 (GND) V - W-B Speed signal from combination meter Ignition switch ON Turn drive wheels slowly Pulse generation
E100-12 (ACC) - E102-6 (GND) GR - W-B Accessory (ON) Ignition switch off Below 1 V
E100-12 (ACC) - E102-6 (GND) GR - W-B Accessory (ON) Ignition switch ACC 11 to 14 V
E100-22 (INT-) - E102-6 (GND) R - W-B Voice signal Navigation or "Bluetooth" handsfree voice signal is transmitted A waveform synchronized with sounds is output
E100-23 (INT+) - E102-6 (GND) G - W-B Voice signal Navigation or "Bluetooth" handsfree voice signal is transmitted A waveform synchronized with sounds is output
E101-1 (+B) - E102-6 (GND) R - W-B Battery Always 11 to 14 V
E101-2 (FR+) - E102-6 (GND) BR - W-B Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
E101-3 (RL+) - E102-6 (GND) B - W-B Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
E101-4 (RR-) - E102-6 (GND) W - W-B Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
E101-5 (+B2) - E102-6 (GND) R - W-B Battery Always 11 to 14 V
E101-6 (FR-) - E102-6 (GND) P - W-B Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
E101-7 (FL-) - E102-6 (GND) R - W-B Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
E101-8 (FL+) - E102-6 (GND) W - W-B Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
E101-9 (RL-) - E102-6 (GND) Y - W-B Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
E101-10 (RR+) - E102-6 (GND) R - W-B Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
E102-1 (WFL-) - E102-6 (GND) V - W-B Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
E102-2 (WFL+) - E102-6 (GND) P - W-B Sound signal (Front Left) Audio system is playing A waveform synchronized with sounds is output
E102-3 (WFR-) - E102-6 (GND) L - W-B Sound signal (Front Right) Audio system is playing A waveform synchronized with sounds is output
E102-4 (SL+) - E102-6 (GND) BR - W-B Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
E102-5 (SR+) - E102-6 (GND) P - W-B Sound signal (Rear Right) Audio system Is playing A waveform synchronized with sounds is output
E102-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
E102-7 (GND2) - Body ground W-B - Body ground Ground Always Below 1 V
E102-9 (WFR+) - E102-6 (GND) LG - W-B Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
E102-10 (SL-) - E102-6 (GND) LG - W-B Sound signal (Rear Left) Audio system is playing A waveform synchronized with sounds is output
E102-12 (SR-) - E102-6 (GND) SB - W-B Sound signal (Rear Right) Audio system is playing A waveform synchronized with sounds is output
scientia non olet · About LEMON Manuals