PARKING ASSIST ECU
Disconnect the J73 parking assist ECU connector.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J73-2 (+B) - J73-3 (GND1) | LA-L*1, SB*2 - LA | Power source signal | Always | 11 to 14 V*1 10.5 to 16 V*2 |
| J73-3 (GND1) - Body ground | LA - Body ground | Ground | Always | Below 1 Ω |
| J73-6 (IG) - J73-3 (GND1) | P*1, B*2 - LA | IG power source signal | Engine switch on (IG) | 11 to 14 V*1 10.5 to 16 V*2 |
| Engine switch off | Below 1 V | |||
| J73-1 (ACC) - J73-3 (GND1) | V - LA | ACC power source signal | Engine switch on (ACC) | 11 to 14 V*1 10.5 to 16 V*2 |
| Engine switch off | Below 1 V |
*1: w/o Stop and Start System
*2: w/ Stop and Start System
Reconnect the J73 parking assist ECU connector.
Measure the voltage, resistance and waveform according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| J73-9 (TX-) | W | AVC-LAN communication signal | - | - |
| J73-10 (TX+) | SB | AVC-LAN communication signal | - | - |
| J72-1 (CV+) - J72-9 (CGND) | BR - P | Rear television camera assembly display signal input | Engine switch on (IG), panoramic view monitor switch on, camera lens not covered, displaying image | Pulse generation (See waveform 1) |
| Engine switch on (IG), panoramic view monitor switch on, camera lens covered, blacking out screen | Pulse generation (See waveform 2) | |||
| J72-3 (CB+) - J72-9 (CGND) | LG - P | Power source to rear television camera assembly | Engine switch on (ACC) | 5.5 to 7.05 V |
| J73-20 (BLSW) - J73-3 (GND1) | V - LA | Panoramic view monitor switch switch signal | Engine switch on (IG), panoramic view monitor switch off | 5.5 to 6.5 V |
| Engine switch on (IG), panoramic view monitor switch on | Below 1 V | |||
| J72-9 (CGND) - Body ground | P - Body ground | Rear television camera assembly ground (shield) | Always | Below 1 Ω |
| J72-2 (CV-) - J73-3 (GND1) | SB - LA | Rear television camera assembly ground | Always | Below 1 V |
| J72-11 (LCV-) - J73-3 (GND1) | LG - LA | Side television camera assembly LH ground | Always | Below 1 Ω |
| J72-10 (LCV+) - J72-24 (LGND) | BR - SB | Side television camera assembly LH display signal input | Engine switch on (IG), panoramic view monitor switch on, camera lens not covered, displaying image | Pulse generation (See waveform 1) |
| Engine switch on (IG), panoramic view monitor switch on, camera lens covered, blacking out screen | Pulse generation (See waveform 2) | |||
| J72-24 (LGND) - Body ground | SB - Body ground | Side television camera assembly LH ground (shield) | Always | Below 1 Ω |
| J72-12 (LCB+) - J72-24 (LGND) | P - SB | Power source to side television camera assembly LH | Engine switch on (ACC) | 5.5 to 7.05 V |
| J72-14 (BCV-) - J73-3 (GND1) | R - LA | Front television camera assembly ground | Always | Below 1 Ω |
| J72-13 (BCV+) - J72-27 (BGND) | B - W | Front television camera assembly display signal input | Waveform 1: Engine switch on (IG), panoramic view monitor switch on, camera lens not covered, displaying image | Pulse generation (See waveform 1) |
| Waveform 2: Engine switch on (IG), panoramic view monitor switch on, camera lens covered, blacking out screen | Pulse generation (See waveform 2) | |||
| J72-27 (BGND) - Body ground | W - Body ground | Front television camera assembly ground (shield) | Always | Below 1 Ω |
| J72-15 (BCB+) - J72-27 (BGND) | G - W | Power source to front television camera assembly | Engine switch on (ACC) | 5.5 to 7.05 V |
| J72-5 (RCV-) - J73-3 (GND1) | R - LA | Side television camera assembly RH ground | Always | Below 1 Ω |
| J72-4 (RCV+) - J72-18 (RGND) | W - G | Side television camera assembly RH display signal input | Waveform 1: Engine switch on (IG), panoramic view monitor switch on, camera lens not covered, displaying image | Pulse generation (See waveform 1) |
| Waveform 2: Engine switch on (IG), panoramic view monitor switch on, camera lens covered, blacking out screen | Pulse generation (See waveform 2) | |||
| J72-18 (RGND) - Body ground | G - Body ground | Side television camera assembly RH ground (shield) | Always | Below 1 Ω |
| J72-6 (RCB+) - J72-18 (RGND) | B - G | Power source to side television camera assembly RH | Engine switch on (ACC) | 5.5 to 7.05 V |
| *a | Waveform 1 (camera lens is not covered, displaying an image) |
| *b | Waveform 2 (camera lens is covered, blacking out the screen) |
| *c | Synchronization Signal |
| *d | Video Waveform |
Reference (Oscilloscope waveform):
Tech Tips
A waterproof connector is used for the rear television camera assembly, front television camera assembly, side television camera assembly LH or side television camera assembly RH. Therefore, inspect the waveform at the radio receiver assembly with the connector connected.
Waveform 1 (camera lens is not covered, displaying an image)
| Item | Content |
|---|---|
| Measurement terminal |
|
| Measurement setting | 200 mV/DIV., 50 μs./DIV. |
| Condition | Engine switch on (IG), panoramic view monitor switch on |
Tech Tips
The video waveform changes according to the image sent by the rear television camera assembly, front television camera assembly, side television camera assembly LH or side television camera assembly RH.
The video waveform is constantly output when the engine switch is on (ACC).
Waveform 2 (camera lens is covered, blacking out the screen)
| Item | Content |
|---|---|
| Measurement terminal |
|
| Measurement setting | 200 mV/DIV., 50 μs./DIV. |
| Condition | Engine switch on (IG), panoramic view monitor switch on |
Tech Tips
The video waveform changes according to the image sent by the rear television camera assembly, front television camera assembly, side television camera assembly LH or side television camera assembly RH.
The video waveform is constantly output when the engine switch is on (ACC).
RADIO RECEIVER ASSEMBLY
w/ Audio and Visual System (for 8 Inch Display): Click here
w/ Navigation System: Click here