Terminals Of Ecu
WARNING: This page is about a different variant/trim than selected.
- CHECK DCM (TELEMATICS TRANSCEIVER)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition L144-1 (+B) - L144-4 (E) SB - BR Vehicle battery power supply Power switch off 11 to 14 V L144-2 (SPI+) - L144-4 (E) LG - BR Sound signal Audio system is playing A waveform synchronized with sound is output L144-3 (SPI-) - L144-4 (E) L - BR Sound signal Audio system is playing A waveform synchronized with sound is output L144-4 (E) - Body ground BR - Body ground Ground Always Below 1 V L144-5 (SPO+) - L144-4 (E) LG - BR Sound signal Audio system is playing, or Emergency call mode A waveform synchronized with sound is output L144-6 (SPO-) - L144-4 (E) L - BR Sound signal Audio system is playing, or Emergency call mode A waveform synchronized with sound is output L144-7 (IG2) - L144-4 (E) L - BR IG power supply Power switch on (IG) 11 to 14 V Power switch off Below 1 V L144-8 (ACC) - L144-4 (E) GR - BR ACC power supply Power switch on (ACC) 11 to 14 V Power switch off Below 1 V L144-9 (SLED) - L144-4 (E) G - BR Manual (SOS) switch illumination signal Power switch on (ACC) 11 to 14 V Power switch off Below 1 V L144-10 (SPDP) - L144-4 (E) V - BR Vehicle speed signal See "Vehicle Signal Check Mode". Refer to OPERATION CHECK - L144-11 (IND1) - L144-4 (E) B - BR Manual (SOS) switch red indicator illumination signal For 2 seconds after turning the Power switch on (ACC) 1 to 8.5 V Power switch off Below 1 V L144-12 (IND2) - L144-4 (E) P - BR Manual (SOS) switch green indicator illumination signal For 2 seconds after turning the Power switch on (ACC) 1 to 8.5 V Power switch off Below 1 V L144-13 (BBI-) L BUB (Back-Up Battery) power supply - - L144-17 (MUTE) - L144-4 (E) G - BR Mute signal Audio system is playing 3.5 V or higher Emergency call mode Below 1 V L144-18 (MCO+) - L144-4 (E) B - BR Sent microphone voice signal See "Microphone & Voice Recognition Check". Refer to OPERATION CHECK - L144-19 (MCO-) - L144-4 (E) W - BR Sent microphone voice signal See "Microphone & Voice Recognition Check". Refer to OPERATION CHECK - L144-20 (CTR1) BE BUB (Back-Up Battery) control line - - L144-21 (CTR2) BR BUB (Back-Up Battery) control line - - L144-23 (ILL+) - L144-4 (E) G - BR Illumination signal Light control switch off Below 1 V Light control switch tail or ON 11 to 14 V L144-24 (GSW) - L144-4 (E) R - BR Collision detection signal Power switch on (IG) Pulse generation
(Refer to waveform 1)L144-25 (SIL) P Serial communication signal - - L144-26 (SIG-) - L144-4 (E) W - BR Ground Always Below 1 V L144-27 (SIG1) - L144-4 (E) R - BR Manual (SOS) switch condition signal Manual (SOS) switch not pressed 1.5 to 2.0 V Manual (SOS) switch pressed 0.5 to 0.8 V L144-30 (BBI+) Y BUB (Back-Up Battery) power supply - - L144-32 (SGND) - L144-4 (E) Shield - BR Shield ground Always Below 1 V L144-33 (MCVD) - L144-4 (E) R - BR Telephone microphone assembly power supply Power switch off Below 1 V Power switch on (IG) 4 to 6 V L144-34 (MCI+) - L144-4 (E) B - BR Receive microphone voice signal See "Microphone & Voice Recognition Check". Refer to OPERATION CHECK - L144-35 (MCI-) - L144-4 (E) W - BR Receive microphone voice signal See "Microphone & Voice Recognition Check". Refer to OPERATION CHECK - - CHECK NAVIGATION ECU SUB-ASSEMBLY
- CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY