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Terminals Of Ecu

  1. RADIO RECEIVER ASSEMBLY 
    Fig 1: Radio Receiver Assembly Connector Terminal Identification
    GTY290398Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    E1-1 (FR+) - E1-7 (E) LG - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output
    E1-2 (FL+) - E1-7 (E) P - BR Sound signal (Front Left) Audio system 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 playing A waveform synchronized with sounds is output
    E1-6 (FL-) - E1-7 (E) V - BR Sound signal (Front Left) Audio system 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) BE - BR Power source of antenna Ignition switch ACC
    Radio switch on and AM or FM selected    		 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 in tail or head position 11 to 14 V
    E2-1 (RR+) - E1-7 (E) R - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output
    E2-2 (RL+) - E1-7 (E) B - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    E2-3 (RR-) - E1-7 (E) W - BR Sound signal (Rear Right) Audio system 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 in tail or head position Pulse generation
    E2-6 (RL-) - E1-7 (E) Y - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output
    E32-3 (SPD) - E1-7 (E) V - BR Vehicle speed signal from combination meter assembly Ignition switch ON
    Drive wheel turned slowly    		 Pulse generation
    E32-6 (SWG) - E1-7 (E) SB - BR Steering pad switch ground Always Below 1 V
    E32-7 (SW1) - E1-7 (E) BE - BR Steering pad switch signal Steering pad switch not operated 4.5 to 5.5 V
    E32-7 (SW1) - E1-7 (E) BE - BR Steering pad switch signal Seek+ switch pushed Below 0.5 V
    E32-7 (SW1) - E1-7 (E) BE - BR Steering pad switch signal Seek- switch pushed 0.86 to 0.95 V
    E32-7 (SW1) - E1-7 (E) BE - BR Steering pad switch signal Volume+ switch pushed 1.91 to 2.01 V
    E32-7 (SW1) - E1-7 (E) BE - BR Steering pad switch signal Volume- switch pushed 3.23 to 3.57 V
    E32-8 (SW2) - E1-7 (E) P - BR Steering pad switch signal Steering pad switch not operated 4.5 to 5.5 V
    E32-8 (SW2) - E1-7 (E) P - BR Steering pad switch signal MODE switch pushed Below 0.5 V
    E32-8 (SW2) - E1-7 (E)*1 P - BR Steering pad switch signal On hook switch pushed 0.86 to 0.95 V
    E32-8 (SW2) - E1-7 (E)*1 P - BR Steering pad switch signal Off hook switch pushed 1.91 to 2.01 V
    E32-8 (SW2) - E1-7 (E)*1 P - BR Steering pad switch signal Voice switch pushed 3.23 to 3.57 V
    E32-15 (ARI) - E1-7 (E) B - BR Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sounds is output
    E32-16 (ASGN) - E1-7 (E) R - BR Shield ground Always Below 1 V
    E32-17 (ALI) - E1-7 (E) W - BR Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sounds is output
    E32-18 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V
    E32-19 (AUXI) - E1-7 (E) L - BR External device connection detection signal External device connected Below 1 V
    E41-1 (SNS2) - E1-7 (E)*1 G - BR Microphone connection detection signal Always Below 1 V
    E41-2 (MIC+) - E1-7 (E)*1 B - BR Microphone voice signal "Bluetooth" hands-free function on A waveform synchronized with sounds is output
    E41-3 (MACC) - E1-7 (E)*1 R - BR Microphone amplifier power supply Ignition switch off Below 1 V
    E41-3 (MACC) - E1-7 (E)*1 R - BR Microphone amplifier power supply Ignition switch ON 4 to 6 V
    E41-5 (MIC-) - E1-7 (E)*1 W - BR Microphone voice signal "Bluetooth" hands-free function on A waveform synchronized with sounds is output
    E41-6 (SGND) - Body ground*1 Shield - Body ground Shield ground Always Below 1 V
    E79-2 (CDR+) - E1-7 (E)*2 W - BR USB audio system sound signal USB audio system playing A Waveform synchronized with sound is output
    E79-3 (CDR-) - E1-7 (E)*2 R - BR USB audio system sound signal USB audio system playing A Waveform synchronized with sound is output
    E79-4 (CDL+) - E1-7 (E)*2 B - BR USB audio system sound signal USB audio system playing A Waveform synchronized with sound is output
    E79-5 (CDL-) - E1-7 (E)*2 G - BR USB audio system sound signal USB audio system playing A Waveform synchronized with sound is output
    E79-6 (MUTE) - E1-7 (E)*2 P - BR Mute signal USB audio system playing Above 3.5 V
    E79-6 (MUTE) - E1-7 (E)*2 P - BR Mute signal USB audio system changing modes Below 1 V
    E79-7 (GND) - E1-7 (E)*2 B - BR Ground Always Below 1 V
    E79-9 (TXM+)*2 W AVC-LAN communication signal - -
    E79-10 (TXM-)*2 L AVC-LAN communication signal - -
    E79-11 (ACC) - E1-7 (E)*2 GR - BR Accessory (ON) Ignition switch off Below 1 V
    E79-11 (ACC) - E1-7 (E)*2 GR - BR Accessory (ON) Ignition switch ACC 11 to 14 V
    E79-12 (+B) - E1-7 (E)*2 R - BR Battery Always 11 to 14 V
    • *1: w/ Telephone Microphone Assembly
    • *2: w/ USB Audio System
  2. MULTI-MEDIA INTERFACE ECU (w/ USB Audio System) 
    Fig 2: Multi-Media Interface ECU Connector Terminal Identification (w/ USB Audio System)
    GTY292132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification
    E77-1 (USD1) - Body ground Shield - Body ground Shield ground Always Below 1 V
    E77-2 (URO+) - E77-7 (GND) W - B USB audio system sound signal USB audio system playing A waveform synchronized with sounds is output
    E77-3 (URO-) - E77-7 (GND) R - B USB audio system sound signal USB audio system playing A waveform synchronized with sounds is output
    E77-4 (ULO+) - E77-7 (GND) B - B USB audio system sound signal USB audio system playing A waveform synchronized with sounds is output
    E77-5 (ULO-) - E77-7 (GND) G - B USB audio system sound signal USB audio system playing A waveform synchronized with sounds is output
    E77-6 (MUT1) - E77-7 (GND) P - B Mute signal USB audio system playing Above 3.5 V
    E77-6 (MUT1) - E77-7 (GND) P - B Mute signal USB audio system changing modes Below 1 V
    E77-7 (GND) - Body ground B - Body ground Ground Always Below 1 V
    E77-9 (TX1+) W AVC-LAN communication signal - -
    E77-10 (TX1-) L AVC-LAN communication signal - -
    E77-11 (ACC) - E77-7 (GND) GR - B Accessory (ON) Ignition switch off Below 1 V
    E77-11 (ACC) - E77-7 (GND) GR - B Accessory (ON) Ignition switch ACC 11 to 14 V
    E77-12 (+B) - E77-7 (GND) R - B Battery Always 11 to 14 V
    E82-1 (UESG) - Body ground - Ground Always Below 1 V
    E82-2 (UDI+) - Data signal USB device or "iPod" connected -
    E82-3 (UDI-) - Data signal USB device or "iPod" connected -
    E82-4 (UPO) - E82-1 (UESG) - USB device or "iPod" power supply Ignition switch ACC 5 V
    E82-5 (UESS) - Body ground Shield - Body ground Shield ground Always Below 1 V
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