Lexus NX: Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION
The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the radio receiver assembly via this circuit.
The sound signal that has been sent is amplified by the stereo component amplifier assembly and then is sent to the speakers.
If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly or speakers.
WIRING DIAGRAM
.png)
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY) |
(a) Disconnect the I151 radio receiver assembly connector.
(b) Disconnect the I155 No. 1 stereo jack adapter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I151-14 (ADPG) - I155-2 (ADPG) | Always | Below 1 Ω |
| I151-10 (AGND) - I155-7 (AGND) | Always | Below 1 Ω |
| I151-11 (VAL+) - I155-1 (VAL+) | Always | Below 1 Ω |
| I151-12 (VAR+) - I155-6 (VAR+) | Always | Below 1 Ω |
| I151-13 (VA-) - I155-5 (VA-) | Always | Below 1 Ω |
| I151-14 (ADPG) or I155-2 (ADPG) - Body ground | Always | 10 kΩ or higher |
| I151-10 (AGND) or I155-7 (AGND) - Body ground | Always | 10 kΩ or higher |
| I151-11 (VAL+) or I155-1 (VAL+) - Body ground | Always | 10 kΩ or higher |
| I151-12 (VAR+) or I155-6 (VAR+) - Body ground | Always | 10 kΩ or higher |
| I151-13 (VA-) or I155-5 (VA-) - 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:
Data Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the radio receiver assembly via this circuit. WIRING DIAGRAM PROCEDURE 1.
Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver
DESCRIPTION This DCM (telematics transceiver) sends a mute signal to the stereo component amplifier assembly. The stereo component amplifier assembly controls the volume according to the mute signal f
AVC-LAN Circuit
DESCRIPTION Each audio system component connected to the AVC-LAN (communication bus) transfers switch signals using the audio visual communication local area network. If a short to +B or short to grou
SEE MORE:
Open or Short Circuit in Release Switch Circuit (C13A4,C13AC)
DESCRIPTION When the electric parking brake switch (integration control and panel assembly) is pushed to the release side, a release request signal is output to the parking brake ECU assembly. DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A4 Open or Sh
System Description
SYSTEM DESCRIPTION GENERAL (a) This system has front, passenger side, driver side and rear television camera assemblies mounted around the vehicle to display around the vehicle on the multi-display assembly. The display panel also shows a composite view consisting of the area behind the vehicle and
