Terminals Of Ecu
- CHECK RADIO RECEIVER
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the F1 receiver connector.
- Measure the resistance and voltage according to the value(s) in the table below.RESISTANCE AND VOLTAGE REFERENCE CHART
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification F1-1 (B) - F1-20 (GND) L - BR Battery Always 11 to 14 V F1-20 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω F1-11 (ACC) - F1-20 (GND) GR - BR Accessory (ON) Engine switch off Below 1 V F1-11 (ACC) - F1-20 (GND) GR - BR Accessory (ON) Engine switch on (ACC) 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the F1 receiver connector.
- Measure the resistance, waveform and voltage according to the value(s) in the table below.TERMINAL DESCRIPTION CHART
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specification F1-2 (ILL+) - F1-20 (GND) G - BR Illumination signal Engine switch on (IG), light control switch off Below 1 V F1-2 (ILL+) - F1-20 (GND) G - BR Illumination signal Engine switch on (IG), light control switch tail or on 11 to 14 V F1-7 (MUTE) - F1-20 (GND) B - BR Mute signal Audio system playing → changing modes 3.5 V or higher → Below 1 V F1-8 (R+) - F1-20 (GND) B - BR Sound signal (right) Audio system playing Waveform synchronized with sound is output F1-9 (L+) - F1-20 (GND) R - BR Sound signal (left) Audio system playing Waveform synchronized with sound is output F1-18 (R-) - F1-20 (GND) W - BR Sound signal (right) Audio system playing Waveform synchronized with sound is output F1-19 (L-) - F1-20 (GND) G - BR Sound signal (left) Audio system playing Waveform synchronized with sound is output F1-10 (SLD) - F1-20 (GND) Shielded - BR Shielded ground Always Below 1 V F24-5 (CDL-) - F1-20 (GND)* R - BR Sound signal (left) RSE system playing Waveform synchronized with sound is output F24-4 (CDL+) - F1-20 (GND)* L - BR Sound signal (left) RSE system playing Waveform synchronized with sound is output F24-3 (CDR-) - F1-20 (GND)* W - BR Sound signal (right) RSE system playing Waveform synchronized with sound is output F24-2 (CDR+) - F1-20 (GND)* B - BR Sound signal (right) RSE system playing Waveform synchronized with sound is output F24-6 (MUTE) - F1-20 (GND)* G - BR Mute signal RSE system playing → changing modes 3.5 V or higher → Below 1 V F23-18 (R-L-) - F1-20 (GND)* R - BR Sound signal (left) RSE system playing Waveform synchronized with sound is output F23-17 (R-L+) - F1-20 (GND)* L - BR Sound signal (left) RSE system playing Waveform synchronized with sound is output F23-16 (R-R-) - F1-20 (GND)* W - BR Sound signal (right) RSE system playing Waveform synchronized with sound is output F23-15 (R-R+) - F1-20 (GND)* B - BR Sound signal (right) RSE system playing Waveform synchronized with sound is output F23-14 (RSLD) - Body ground* Shielded - Body ground Ground Always Below 1 V F23-19 (RMUT) - F1-20 (GND)* G - BR Mute signal RSE system playing → changing modes 3.5 V or higher → Below 1 V F25-7 (SLD2) - Body ground* Shielded - Body ground Ground Always Below 1 Ω F25-6 (SGD4) - F1-20 (GND)* W - BR Ground Always Below 1 Ω F25-5 (NTRO) - F1-20 (GND)* B - BR Display signal DVD image playing Pulse generation F1-12 (ILL-) - F1-20 (GND) W - BR Illumination signal Engine switch off Below 1 V F1-12 (ILL-) - F1-20 (GND) W - BR Illumination signal Engine switch on (IG) Pulse generation F23-9 (TX+) - F1-20 (GND) W - BR AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V F23-10 (TX-) - F1-20 (GND) L - BR AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V F1-5 (ATX+) - F1-20 (GND) R - BR AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V F1-15 (ATX-) - F1-20 (GND) W - BR AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V F1-13 (ANT) - F1-20 (GND) P - BR Power source of antenna Radio switch on and AM or FM 11 to 14 V F23-6 (SWG) - F1-20 (GND) W - BR Steering pad switch ground Always Below 1 V F23-7 (SW1) - F1-20 (GND) L - BR Steering pad switch signal Steering pad switch not pushed 4 V or higher F23-7 (SW1) - F1-20 (GND) L - BR Steering pad switch signal Steering pad switch seek+ switch pushed Below 0.5 V F23-7 (SW1) - F1-20 (GND) L - BR Steering pad switch signal Steering pad switch seek-switch pushed 0.8 V F23-7 (SW1) - F1-20 (GND) L - BR Steering pad switch signal Steering pad switch vol+ switch pushed 1.8 V F23-7 (SW1) - F1-20 (GND) L - BR Steering pad switch signal Steering pad switch vol-switch pushed 3.0 V F23-8 (SW2) - F1-20 (GND) P - BR Steering pad switch signal Steering pad switch not pushed 4 V or higher F23-8 (SW2) - F1-20 (GND) P - BR Steering pad switch signal Steering pad switch MODE switch pushed Below 0.5 V F23-8 (SW2) - F1-20 (GND) P - BR Steering pad switch signal Steering pad switch on hook switch pushed 0.9 V F23-8 (SW2) - F1-20 (GND) P - BR Steering pad switch signal Steering pad switch off hook switch pushed 1.5 V F23-8 (SW2) - F1-20 (GND) P - BR Steering pad switch signal Steering pad switch voice recognition switch pushed 3.0 V F25-1 (NTSC) - F1-20 (GND) W - BR DVD image signal DVD played Pulse generation (see WAVEFORM 1 ) F25-2 (GND) - F1-20 (GND) B - BR Ground Always Below 1 V F25-3 (SLD) - F1-20 (GND) Shielded - BR Shielded ground Always Below 1 V F26-2 (ARI) - F1-20 (GND) W - BR Sound signal (right) External device playing (When stereo jack used) Waveform synchronized with sound is output F26-5 (ASGN) - F1-20 (GND) R - BR Ground Always Below 1 V F26-4 (AGND) - F1-20 (GND) Shielded - BR Shielded ground Always Below 1 V F26-3 (ALI) - F1-20 (GND) B - BR Sound signal (left) External device playing (When stereo jack used) Waveform synchronized with sound is output F26-6 (AUXI) - F1-20 (GND) V - BR External device connection detection signal External device connected Below 1 V HINT:
*: w/Rear Seat Entertainment System
#: There is no wire color information.
If the result is not as specified, the receiver may have a malfunction. - Using an oscilloscope, check the waveform.
Waveform 1 (reference)
WAVEFORM REFERENCE CHARTItem Content Terminal No. (Symbol) F25-1 (NTSC) - Body ground Tool Setting 200 mV/DIV., 10 μsec./DIV. Condition DVD displayed on multi-display
- CHECK STEREO COMPONENT AMPLIFIER
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the F18 and F2 amplifier connectors.
- Measure the resistance and voltage according to the value(s) in the table below.RESISTANCE AND VOLTAGE REFERENCE CHART
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition F2-2 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω F2-6 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω F2-1 (+B) - F2-2 (GND) L - W-B Battery Always 11 to 14 V F2-3 (+B2) - F2-2 (GND) L - W-B Battery Always 11 to 14 V F18-12 (ACC) - F2-2 (GND) GR - W-B Accessory (ON) Engine switch off Below 1 V F18-12 (ACC) - F2-2 (GND) GR - W-B Accessory (ON) Engine switch on (ACC) 11 to 14 V If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the F18 and F2 amplifier connectors.
- Measure the voltage and waveform according to the value(s) in the table below.
TERMINAL DESCRIPTION CHARTTerminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition F3-3 (CTR+) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-9 (CTR-) - F2-2 (GND) B - W-B Sound signal Audio system playing Waveform synchronized with sound is output F4-3 (FL+) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F4-8 (FL-) - F2-2 (GND) B - W-B Sound signal Audio system playing Waveform synchronized with sound is output F4-10 (FR+) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F4-9 (FR-) - F2-2 (GND) B - W-B Sound signal Audio system playing Waveform synchronized with sound is output F18-3 (L+) - F2-2 (GND) R - W-B Sound signal Audio system playing Waveform synchronized with sound is output F18-2 (L-) - F2-2 (GND) G - W-B Sound signal Audio system playing Waveform synchronized with sound is output F18-5 (R+) - F2-2 (GND) B - W-B Sound signal Audio system playing Waveform synchronized with sound is output F18-4 (R-) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F4-1 (WF1+) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F4-6 (WF1-) - F2-2 (GND) B - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-4 (WF2+) - F2-2 (GND) R - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-10 (WF2-) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F18-11 (SPD) - F2-2 (GND) V - W-B Speed signal Engine switch on (IG), drive wheels turned slowly Pulse generation F18-1 (MUTE) - F2-2 (GND) B - W-B Mute signal Audio system playing → change mode 3.5 V or higher → Below 1 V F18-8 (TX+) - F2-2 (GND) R - W-B AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V F18-7 (TX-) - F2-2 (GND) W - W-B AVC-LAN communication signal Engine switch on (ACC) 2 to 3 V F18-5 (R+) - F2-2 (GND) B - W-B Sound signal (right) Audio system playing Waveform synchronized with sound is output F18-4 (R-) - F2-2 (GND) W - W-B Sound signal (right) Audio system playing Waveform synchronized with sound is output F18-3 (L+) - F2-2 (GND) R - W-B Sound signal (left) Audio system playing Waveform synchronized with sound is output F18-2 (L-) - F2-2 (GND) G - W-B Sound signal (left) Audio system playing Waveform synchronized with sound is output F4-4 (R-L+) - F2-2 (GND) W - W-B Sound signal (left) Audio system playing Waveform synchronized with sound is output F4-11 (R-L-) - F2-2 (GND) B - W-B Sound signal (left) Audio system playing Waveform synchronized with sound is output F4-5 (R-R+) - F2-2 (GND) W - W-B Sound signal (right) Audio system playing Waveform synchronized with sound is output F4-12 (R-R-) - F2-2 (GND) B - W-B Sound signal (right) Audio system playing Waveform synchronized with sound is output F3-8 (SL+) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-7 (SL-) - F2-2 (GND) B - W-B Sound signal Audio system playing Waveform synchronized with sound is output F4-2 (SR+) - F2-2 (GND) W - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-1 (WFL+) - F2-2 (GND) P - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-5 (WFL-) - F2-2 (GND) V - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-2 (WFR+) - F2-2 (GND) LG - W-B Sound signal Audio system playing Waveform synchronized with sound is output F3-6 (WFR-) - F2-2 (GND) L - W-B Sound signal Audio system playing Waveform synchronized with sound is output F18-15 (M1+) - F2-2 (GND) W - W-B Voice guidance signal Voice guidance provided Waveform synchronized with sound is output F18-14 (M1-) - F2-2 (GND) B - W-B Voice guidance signal Voice guidance provided Waveform synchronized with sound is output HINT:
#: There is no wire color information.
If the result is not as specified, the amplifier may have a malfunction. - CHECK MULTI-DISPLAY (See TERMINALS OF ECU )