| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Audio/Visual/Telematics | Section: Park Assist/Monitoring | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000003EB2000X |
| Title: PARK ASSIST / MONITORING: WIDE VIEW FRONT MONITOR SYSTEM: DESCRIPTION (2008 LX570) | ||
|
ECU Power Source Circuit |
DESCRIPTION
This circuit is the power source circuit to operate the parking assist ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT FUSE (RAD NO. 1, ACC, ECU-IG NO. 1) |
(a) Remove the ECU-IG NO. 1 and ACC fuses from the main body ECU.
(b) Remove the RAD NO. 1 fuse from the engine room relay block.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
ECU-IG NO. 1 fuse |
Always |
Below 1 Ω |
|
ACC fuse |
Always |
Below 1 Ω |
|
RAD NO. 1 fuse |
Always |
Below 1 Ω |
|
|
2. |
CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - BATTERY AND BODY GROUND) |
(a) Disconnect the F36 ECU connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F36-1 (IG) - Body ground |
Engine switch on (IG) |
11 to 14 V |
|
F36-1 (IG) - Body ground |
Engine switch off |
Below 1 V |
|
F36-14 (ACC) - Body ground |
Engine switch on (ACC) |
11 to 14 V |
|
F36-14 (ACC) - Body ground |
Engine switch off |
Below 1 V |
|
F36-6 (+B) - Body ground |
Always |
11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F36-4 (GND1) - Body ground |
Always |
Below 1 Ω |
|
|
|