Terminals Of Ecu
WARNING: This page is about a different variant/trim than selected.
- RADIO AND DISPLAY RECEIVER ASSEMBLY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specification L146-1 (FR+) - L146-7 (GND1) LG - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output L146-2 (FL+) - L146-7 (GND1) P - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output L146-3 (ACC1) - L146-7 (GND1) GR - BR Power source (ACC) Power switch off Below 1 V Power switch on (ACC) 11 to 14 V L146-4 (+B1) - L146-7 (GND1) SB - BR Power source (+B) Power switch off 11 to 14 V L146-5 (FR-) - L146-7 (GND1) L - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output L146-6 (FL-) - L146-7 (GND1) V - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output L146-7 (GND1) - Body ground BR - Body ground Ground Always Below 1 V L146-10 (ILL+) - L146-7 (GND1) G - BR Illumination signal Light control switch off Below 1 V Power switch off
Light control switch in tail or head position11 to 14 V L147-1 (RR+) - L146-7 (GND1) R - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output L147-2 (RL+) - L146-7 (GND1) B - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output L147-3 (RR-) - L146-7 (GND1) W - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output L147-5 (ILL-) - L146-7 (GND1) W-B - BR Illumination signal Light control switch off Below 1 V Light control switch in tail or head position Pulse generation L147-6 (RL-) - L146-7 (GND1) Y - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output L149-1 (IG) - L146-7 (GND1) B - BR Power source (IG) Power switch off Below 1 V Power switch on (IG) 11 to 14 V L149-2 (REV) - L146-7 (GND1) P - BR Reverse signal See "Vehicle Signal Check Mode" in Operation Check. Refer to OPERATION CHECK - L149-4 (MACC) - L146-7 (GND1) R - BR Microphone power supply Power switch off Below 1 V Power switch on (ACC) 4 to 6 V L149-5 (MIN+) - L146-7 (GND1) B - BR Microphone voice signal See "Microphone & Voice Recognition Check" in Operation Check. Refer to OPERATION CHECK - L149-6 (SNS2) - L146-7 (GND1) B - BR Microphone connection detection signal Always Below 1 V L149-9 (CANH) G CAN communication signal - - L149-10 (CANL) W CAN communication signal - - L149-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V L149-17 (SPD) - L146-7 (GND1) V - BR Vehicle speed signal See "Vehicle Signal Check Mode" in Operation Check. Refer to OPERATION CHECK - L149-18 (SGND) - Body ground Shield - Body ground Shield ground Always Below 1 V L149-19 (MIN-) - L146-7 (GND1) W - BR Microphone voice signal See "Microphone & Voice Recognition Check" in Operation Check. Refer to OPERATION CHECK - L149-21 (SW1) - L149-23 (SWG) R - P Steering pad switch signal No switch pushed 2.97 to 3.56 V Up switch pushed 0.27 to 0.35 V Down switch pushed 0.86 to 1.03 V Volume+ switch pushed 1.51 to 1.79 V Volume- switch pushed 2.22 to 2.66 V L149-22 (SW2) - L149-23 (SWG) G - P Steering pad switch signal No switch pushed 2.97 to 3.56 V MODE switch pushed 0.27 to 0.35 V On hook switch pushed 0.86 to 1.03 V Off hook switch pushed 1.51 to 1.79 V L149-23 (SWG) - L146-7 (GND1) P - BR Steering pad switch ground Always Below 1 V L149-25 (ADPG) - L146-7 (GND1) W - BR External device connection detection signal External device connected Below 1 V External device not connected 2.1 to 3 V L149-26 (VAR+) - L149-27 (VA-) B - W Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sounds is output L149-27 (VA-) - L146-7 (GND1) W - BR Ground Always Below 1 V L149-28 (VAL+) - L149-27 (VA-) R - W Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sounds is output L148-6 (PKB) - L146-7 (GND1) R - BR Parking brake signal See "Vehicle Signal Check Mode" in Operation Check. Refer to OPERATION CHECK - L148-7 (CA+) - L146-7 (GND1) W - BR Television camera power supply Within 60 seconds of turning the power switch on (ACC) 5.5 to 7.05 V L148-8 (V+) - L146-7 (GND1) R - BR Video signal Power switch on (READY)
Reverse (R) selected
Camera lens not covered, displaying an imagePulse generation
(Refer to waveform 1)Power switch on (READY)
Reverse (R) selected
Camera lens covered, blacking out screenPulse generation
(Refer to waveform 2)L148-15 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V L148-16 (V-) - L146-7 (GND1) B - BR Ground Always Below 1 V L150-1 (UPO) - Power source - - L150-2 (UDO-) - Data signal - - L150-3 (UDO+) - Data signal - - L150-4 (UESG) - Ground - - L150-5 (USG1) - Shield ground - - RA-5 (ANT+) - L146-7 (GND1) B - BR Power source of antenna Power switch on (ACC)
Radio switch on and FM or AM selected11 to 14 V - Reference (Oscilloscope waveform):
- Waveform 1 (camera lens not covered, displaying an image)
Item Content Measurement terminal L148-8 (V+) - L146-7 (GND1) Measurement setting 200 mV/DIV., 50 μsec./DIV. Condition Power switch on (READY), Reverse (R) selected HINT:
The video waveform changes according to the image sent by the television camera assembly.
- Waveform 2 (camera lens covered, blacking out the screen)
Item Content Measurement terminal L148-8 (V+) - L146-7 (GND1) Measurement setting 200 mV/DIV., 50 μsec./DIV. Condition Power switch on (READY), Reverse (R) selected HINT:
The video waveform changes according to the image sent by the rear television camera assembly.
TEXT IN ILLUSTRATION*a Waveform 1 (camera lens not covered, displaying an image) *b Waveform 2 (camera lens covered, blacking out the screen) *c Synchronization Signal *d Video Waveform
- Waveform 1 (camera lens not covered, displaying an image)
- Reference (Oscilloscope waveform):