Lexus NX: Start Up Signal Circuit between Radio Receiver Assembly and Navigation ECU
Lexus NX Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System / Start Up Signal Circuit between Radio Receiver Assembly and Navigation ECU
DESCRIPTION
This circuit includes the navigation ECU and radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the I153 radio receiver assembly connector.
(b) Disconnect the I173 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I153-7 (SUP) - I173-21 (SUP) | Always | Below 1 Ω |
| I153-7 (SUP) - Body ground | Always | 10 kΩ or higher |
| OK | .gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
.gif)
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Microphone Circuit
DESCRIPTION
The radio receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
Using this circuit, the DCM (telemati
Visual Mute Signal Circuit between Radio Receiver and Multi-display
DESCRIPTION The radio receiver assembly sends a visual mute signal to the multi-display assembly. As a result, a black screen is inserted when the screen changes so that noise and distorted images are
Radio Receiver Power Source Circuit
DESCRIPTION This is the power source circuit to operate the radio receiver assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Inspect the fuses for circuits related to this system before per
SEE MORE:
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Parking Assist Monitor System DTC No. Detection Item Link C1611 ECU Malfunction C1621 Back Camera Power Supply Failure C1625 Open or Short in Steering Angle Sensor +B C1626 Steering Angle Sensor Failure C168D Vehi
Power Back Door Main Switch
InspectionINSPECTION PROCEDURE 1. INSPECT POWER BACK DOOR MAIN SWITCH (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Switch Condition Specified Condition 16 (L) - 6 (B) Switch off 10 kΩ or
© 2016-2026 Copyright www.lexunx.com
