Lexus NX: ECU Power Source Circuit
DESCRIPTION
This circuit is the power source circuit to operate the parking assist ECU. The parking assist ECU controls the panoramic view monitor system.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuse for circuits related to this system before performing the following procedure.
HINT:
- If the television camera controller does not operate due to a power source problem, other system DTCs may be stored due to a CAN communication interruption.
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - BATTERY AND BODY GROUND) |
| (a) Disconnect the parking assist ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P44-4 (GND1) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| P44-1 (+B) - P44-4 (GND1) | Power switch off | 11 to 14 V |
| P44-2 (ACC) - P44-4 (GND1) | Power switch on (ACC) | 11 to 14 V |
| Power switch off | Below 1 V | |
| P44-3 (IG) - P44-4 (GND1) | Power switch on (IG) | 11 to 14 V |
| Power switch off | Below 1 V |
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
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| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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Image from Camera for Panoramic View Monitor is Abnormal
DESCRIPTION The display signal from the rear television camera assembly is transmitted to the multi-display assembly via the parking assist ECU. WIRING DIAGRAM w/o Seat Memory w/ Seat Memory CAUTION
Components
COMPONENTS ILLUSTRATION *1 DECK TRIM SIDE PANEL ASSEMBLY RH *2 LUGGAGE HOLD BELT STRIKER ASSEMBLY *3 NO. 1 LUGGAGE COMPARTMENT TRIM HOOK *4 PARKING ASSIST ECU *5 REAR DOOR OP
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Components
COMPONENTS ILLUSTRATION *1 OIL FILTER CAP ASSEMBLY *2 O-RING *3 GASKET *4 OIL PAN DRAIN PLUG *5 OIL FILTER ELEMENT *6 OIL FILTER DRAIN PLUG *7 OIL FILLER CAP - - N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part
Driving assist systems
To keep driving safety and performance,
the following systems operate
automatically in response to
various driving situations. Be aware,
however, that these systems are
supplementary and should not be
relied upon too heavily when operating
the vehicle.
Summary of the driving assist
systems
