NAVIGATION SYSTEM TERMINALS OF ECU
-
RADIO AND DISPLAY RECEIVER ASSEMBLY
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specification E1-1 (FR+) - E1-7 (GND1) LG - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output E1-2 (FL+) - E1-7 (GND1) P - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output E1-3 (ACC1) - E1-7 (GND1) GR - BR Power source (ACC) Power switch off Below 1 V Power switch on (ACC) 11 to 14 V E1-4 (+B1) - E1-7 (GND1) SB - BR Power source (+B) Power switch off 11 to 14 V E1-5 (FR-) - E1-7 (GND1) L - BR Sound signal (Front Right) Audio system playing A waveform synchronized with sounds is output E1-6 (FL-) - E1-7 (GND1) V - BR Sound signal (Front Left) Audio system playing A waveform synchronized with sounds is output E1-7 (GND1) - Body ground BR - Body ground Ground Always Below 1 V E1-10 (ILL+) - E1-7 (GND1) G - BR Illumination signal Light control switch off Below 1 V Power switch off
Light control switch in tail or head position
11 to 14 V E2-1 (RR+) - E1-7 (GND1) R - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output E2-2 (RL+) - E1-7 (GND1) B - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output E2-3 (RR-) - E1-7 (GND1) W - BR Sound signal (Rear Right) Audio system playing A waveform synchronized with sounds is output E2-6 (RL-) - E1-7 (GND1) Y - BR Sound signal (Rear Left) Audio system playing A waveform synchronized with sounds is output E128-1 (IG) - E1-7 (GND1) L - BR Power source (IG) Power switch off Below 1 V Power switch on (IG) 11 to 14 V E128-2 (REV) - E1-7 (GND1) P - BR Reverse signal See "Vehicle Signal Check Mode" in Operation Check Click here
- E128-4 (MACC) - E1-7 (GND1) R - BR Microphone power supply Power switch off Below 1 V Power switch on (ACC) 4 to 6 V E128-5 (MIN+) - E1-7 (GND1) B - BR Microphone voice signal See "Microphone Level Test" in Operation Check Click here
- E128-6 (SNS2) - Body ground W-B - Body ground Ground Always Below 1 V E128-11 (AGND) - Body ground Shield - Body ground Shield ground Always Below 1 V E128-17 (SPD) - E1-7 (GND1) V - BR Vehicle speed signal See "Vehicle Signal Check Mode" in Operation Check Click here
- E128-18 (SGND) - E1-7 (GND1) Shield - BR Shield ground Always Below 1 V E128-19 (MIN-) - E1-7 (GND1) W - BR Microphone voice signal See "Microphone Level Test" in Operation Check Click here
- E128-21 (SW1) - E128-23 (SWG) W - BR 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 E128-22 (SW2) - E128-23 (SWG) R - BR 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 Voice switch pushed 2.22 to 2.66 V E128-23 (SWG) - E1-7 (GND1) BR - BR Steering pad switch ground Always Below 1 V E128-25 (ADPG) - E1-7 (GND1) L - BR External device connection detection signal External device connected Below 1 V External device not connected 2.1 to 3 V E128-26 (VAR+) - E128-27 (VA-) W - R Sound signal (Right) External device playing (When stereo jack used) A waveform synchronized with sounds is output E128-27 (VA-) - E1-7 (GND1) R - BR Ground Always Below 1 V E128-28 (VAL+) - E128-27 (VA-) B - R Sound signal (Left) External device playing (When stereo jack used) A waveform synchronized with sounds is output E127-6 (PKB) - E1-7 (GND1) B - BR Parking brake signal See "Vehicle Signal Check Mode" in Operation Check Click here
- E127-7 (CA+) - E1-7 (GND1) B - BR Television camera power supply Within 60 seconds of turning the power switch on (ACC) 5.5 to 7.05 V E127-8 (V+) - E1-7 (GND1) R - BR Video signal Power switch on (READY)
Reverse (R) selected
Camera lens not covered, displaying an image
Pulse generation
(Refer to waveform 1)
Power switch on (READY)
Reverse (R) selected
Camera lens covered, blacking out screen
Pulse generation
(Refer to waveform 2)
E127-15 (CGND) - Body ground Shield - Body ground Shield ground Always Below 1 V E127-16 (V-) - E1-7 (GND1) W - BR Ground Always Below 1 V i2-1 (+B2) - E1-7 (GND1) B - BR Power source Power switch off 11 to 14 V i2-2 (SPD0) - E1-7 (GND1) G - BR Vehicle speed signal See "Vehicle Signal Check Mode" in Operation Check Click here
- i2-5 (REV0) - E1-7 (GND1) L - BR Reverse signal See "Vehicle Signal Check Mode" in Operation Check Click here
- i2-6 (VSYN) Y Display signal - - i2-7 (HSYN) P Display signal - - i2-8 (AGND) - E1-7 (GND1) LG - BR Ground Always Below 1 V i2-10 (B) W Display signal - - i2-11 (G) R Display signal - - i2-12 (R) V Display signal - - i2-13 (ACC2) - E1-7 (GND1) P - BR Power source (ACC) Power switch off Below 1 V Power switch on (ACC) 11 to 14 V i2-14 (GND2) - Body ground W-B - Body ground Ground Always Below 1 V i2-19 (MIC+) - E1-7 (GND1) R - BR Microphone voice signal See "Microphone Level Test" in Operation Check Click here
- i2-20 (MIC-) - E1-7 (GND1) V - BR Microphone voice signal See "Microphone Level Test" in Operation Check Click here
- i2-22 (VOI+) - E1-7 (GND1) Y - BR Voice signal Voice guidance sounding A waveform synchronized with sounds is output i2-23 (VOI-) - E1-7 (GND1) W - BR Voice signal Voice guidance sounding A waveform synchronized with sounds is output i3-2 (CDR+) - E1-7 (GND1) L - BR Sound signal (Right) Audio system playing A waveform synchronized with sounds is output i3-3 (CDR-) - E1-7 (GND1) LG - BR Sound signal (Right) Audio system playing A waveform synchronized with sounds is output i3-4 (CDL+) - E1-7 (GND1) BR - BR Sound signal (Left) Audio system playing A waveform synchronized with sounds is output i3-5 (CDL-) - E1-7 (GND1) G - BR Sound signal (Left) Audio system playing A waveform synchronized with sounds is output i3-6 (MUTE) - E1-7 (GND1) B - BR Mute signal Audio system playing Above 3.5 V Audio system changing modes Below 1 V i3-9 (TX+) BR AVC-LAN communication signal - - i3-10 (TX-) W-B AVC-LAN communication signal - - RA-5 (ANT+) - E1-7 (GND1) B - BR Power source of antenna Power switch on (ACC)
Radio switch on and FM or AM selected
11 to 14 V
-
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 Reference (Oscilloscope waveform):
-
Waveform 1 (camera lens not covered, displaying an image)
Item Content Measurement terminal E127-8 (V+) - E1-7 (GND1) Measurement setting 200 mV/DIV., 50 μsec./DIV. Condition Power switch on (READY), Reverse (R) selected Tech Tips
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 E127-8 (V+) - E1-7 (GND1) Measurement setting 200 mV/DIV., 50 μsec./DIV. Condition Power switch on (READY), Reverse (R) selected Tech Tips
The video waveform changes according to the image sent by the rear television camera assembly.
-
-
-
EXTENSION MODULE
Terminal No. (Symbols) Wiring Color Terminal Description Condition Specification i1-1 (MUTE) - i1-32 (GND2) B - W-B Mute signal Mute off Above 3.5 V Mute on Below 1 V i1-2 (TX+) BR AVC-LAN communication signal - - i1-3 (TX-) W-B AVC-LAN communication signal - - i1-5 (VSYN) Y Display signal - - i1-6 (B) W Display signal - - i1-7 (R) V Display signal - - i1-9 (MIC+) - i1-32 (GND2) R - W-B Microphone voice signal See "Microphone Level Test" in Operation Check Click here
- i1-11 (ACC2) - i1-32 (GND2) P - W-B Power source (ACC) Power switch off Below 1 V Power switch on (ACC) 11 to 14 V i1-12 (CDR-) - i1-32 (GND2) LG - W-B Sound signal (Right) Audio system playing A waveform synchronized with sounds is output i1-13 (CDR+) - i1-32 (GND2) L - W-B Sound signal (Right) Audio system playing A waveform synchronized with sounds is output i1-14 (CDL-) - i1-32 (GND2) G - W-B Sound signal (Left) Audio system playing A waveform synchronized with sounds is output i1-15 (CDL+) - i1-32 (GND2) BR - W-B Sound signal (Left) Audio system playing A waveform synchronized with sounds is output i1-16 (+B2) - i1-32 (GND2) B - W-B Power source (+B) Power switch off 11 to 14 V i1-18 (SPD0) - i1-32 (GND2) G - W-B Vehicle speed signal Power switch on (IG)
Wheel being rotated
Pulse generation i1-19 (REV0) - i1-32 (GND2) L - W-B Reverse signal Power switch on (READY)
Reverse (R) selected
11 to 15.5 V i1-20 (AGND) - i1-32 (GND2) LG - W-B Ground Always Below 1 V i1-22 (HSYN) P Display signal - - i1-23 (G) R Display signal - - i1-25 (MIC-) - i1-32 (GND2) V - W-B Microphone voice signal See "Microphone Level Test" in Operation Check Click here
- i1-30 (VOI-) - i1-32 (GND2) W - W-B Voice signal Voice guidance sounding A waveform synchronized with sounds is output i1-31 (VOI+) - i1-32 (GND2) Y - W-B Voice signal Voice guidance sounding A waveform synchronized with sounds is output i1-32 (GND2) - Body ground W-B - Body ground Ground Always Below 1 V E130-1 (USV1) - Power source - - E130-2 (US1-) - Data signal - - E130-3 (US1+) - Data signal - - E130-4 (UGD1) - Ground - - E130-5 (USG1) - Shield ground - - RA-5 (ANT+) - i1-32 (GND2) B - W-B Power source of antenna Power switch on (ACC)
Radio switch on and FM or AM selected
11 to 14 V