PARKING ASSIST ECU
Disconnect the I6 and I7 parking assist ECU connectors.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| I6-1 (+B) - I6-4 (GND1) | L - W-B | Power source signal | Always | 10 to 16 V |
| I6-4 (GND1) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| I6-8 (IG) - I6-4 (GND1) | L - W-B | IG Power source signal | Engine switch on (IG) | 10 to 16 V |
| Engine switch off | Below 1 V | |||
| I6-9 (ACC) - I6-4 (GND1) | P - W-B | ACC Power source signal | Engine switch on (ACC) | 10 to 16 V |
| Engine switch off | Below 1 V | |||
| I7-8 (BLSW) - I6-4 (GND1) | L - W-B | Front and side monitor main switch power source signal | Engine switch on (IG), wide view front and side monitor switch on | 10 to 16 V |
Reconnect the I6 and I7 parking assist ECU connectors.
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 |
|---|---|---|---|---|
| I6-10 (TX-) | LG | AVC-LAN communication signal | - | - |
| I6-11(TX+) | L | AVC-LAN communication signal | - | - |
| I7-36 (BCV-) - I7-35 (BGND) | W - GR | Front television camera ground | Always | Below 1 V |
| I7-12 (BCV+) - I7-35 (BGND) | R - GR | Front television camera display signal input | Engine switch on (IG), wide view front and side monitor switch on and camera lens is not covered, displaying an image | Pulse generation (See waveform 1) |
| Engine switch on (IG), wide view front and side monitor switch on and camera lens is covered, blacking out the screen. | Pulse generation (See waveform 2) |
|||
| I7-35 (BGND) - I6-4 (GND1) | GR - W-B | Front television camera ground (shield) | Always | Below 1 Ω |
| I7-11 (BCB+) - I7-35 (BGND) | B - GR | Power source to front television camera | Engine switch on (IG), wide view front and side monitor switch on | 5.5 to 7.05 V |
| *a | Waveform 1 |
| *b | Waveform 2 |
| *c | Synchronized Signal |
| *d | Video Waveform |
Using an oscilloscope, check waveform.
Tech Tips
The video waveform changes according to the image sent by the front television camera assembly.
Waveform 1
| Item | Content |
|---|---|
| Terminal No. (Symbol) | I7-12 (BCV+) - I7-35 (BGND) |
| Tool Setting | 200 mV/DIV., 50 μsec./DIV. |
| Condition | Engine switch on (IG), wide view front and side monitor switch on and camera lens is not covered, displaying an image |
Waveform 2
| Item | Content |
|---|---|
| Terminal No. (Symbol) | I7-12 (BCV+) - I7-35 (BGND) |
| Tool Setting | 200 mV/DIV., 50 μsec./DIV. |
| Condition | Engine switch on (IG), wide view front and side monitor switch on and camera lens is covered, blacking out the screen. |
NAVIGATION RECEIVER ASSEMBLY (for Navigation Receiver Type) Click here
RADIO AND DISPLAY RECEIVER ASSEMBLY (for Radio and Display Type) Click here