| Last Modified: 11-27-2007 | 1.6 U | |
| Service Category: Audio/Visual/Telematics | Section: Park Assist/Monitoring | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000003EBC000X |
| Title: PARK ASSIST / MONITORING: SIDE MONITOR SYSTEM: TERMINALS OF ECU (2008 LX570) | ||
TERMINALS OF ECU
1. CHECK PARKING ASSIST ECU
(a) Disconnect the F36 and F37 ECU connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
F36-6 (+B) - F36-4 (GND1) |
L - W-B |
Power source signal |
Always |
11 to 14 V |
|
F36-1 (IG) - F36-4 (GND1) |
G - W-B |
IG power source signal |
Engine switch on (IG) |
11 to 14 V |
|
F36-1 (IG) - F36-4 (GND1) |
G - W-B |
IG power source signal |
Engine switch off |
Below 1 V |
|
F36-14 (ACC) - F36-4 (GND1) |
GR - W-B |
ACC power source signal |
Engine switch on (ACC) |
11 to 14 V |
|
F36-14 (ACC) - F36-4 (GND1) |
GR - W-B |
ACC power source signal |
Engine switch off |
Below 1 V |
|
F37-22 (BLSW) - F36-4 (GND1) |
G - W-B |
Front and side monitor main switch power source signal |
Engine switch on (IG), front and side monitor main switch on |
11 to 14 V |
|
F37-22 (BLSW) - F36-4 (GND1) |
G - W-B |
Front and side monitor main switch power source signal |
Engine switch on (IG), front and side monitor main switch off |
Below 1 V |
|
F36-4 (GND1) - Body ground |
W-B - Body ground |
ECU ground |
Always |
Below 1 Ω |
(c) Reconnect the F36 and F37 ECU connectors.
(d) Measure the voltage and waveform according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
F37-36 (SCV-) - F36-4 (GND1) |
Shield - W-B |
Side television camera ground (shielded) |
Always |
Below 1 V |
|
F37-13 (SGND) - F36-4 (GND1) |
W - W-B |
Side television camera ground |
Always |
Below 1 V |
|
F37-12 (SCV+) - F36-4 (GND1) |
R - W-B |
Display signal |
Side monitor display screen displayed |
Waveform 1 |
|
F37-12 (SCV+) - F36-4 (GND1) |
R - W-B |
Display signal |
Camera lens covered to make image black while side view monitor display screen displayed |
Waveform 2 |
|
F37-14 (SCB+) - F36-4 (GND1) |
B - W-B |
Side television camera power source signal |
Side monitor display screen displayed |
5.8 to 6.5 V |
|
(e) Using an oscilloscope, check waveform 1.
|
|
(f) Using an oscilloscope, check waveform 2.
|
|
|