Lexus NX: Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier
DESCRIPTION
This circuit is used when the voice switch of the steering pad switch assembly is pushed.
Using this circuit, the radio and display receiver assembly sends signals to the stereo component amplifier assembly.
WIRING DIAGRAM
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY) |
(a) Disconnect the I154 radio and display receiver assembly connector.
(b) Disconnect the P46 stereo component amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester connection | Condition | Specified condition |
|---|---|---|
| I154-3 (RL+) - P46-15 (II1+) | Always | Below 1 Ω |
| I154-8 (RL-) - P46-14 (II1-) | Always | Below 1 Ω |
| P46-18 (SLD1) - Body ground | Always | 10 kΩ or higher |
| I154-3 (RL+) or P46-15 (II1+) - Body ground | Always | 10 kΩ or higher |
| I154-8 (RL-) or P46-14 (II1-) - Body ground | Always | 10 kΩ or higher |
| 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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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:
Disassembly
DISASSEMBLY PROCEDURE 1. PRECAUTION NOTICE:
Be sure to read Precaution thoroughly before servicing.
Click here
Handle components indoors as much as possible to prevent foreign matter from entering and adhering to rear combination light assembly components.
Do not reuse parts which have redu
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure described below is for the LH side.
PROCEDURE 1. REMOVE CENTER BACK DOOR GARNISH Click here 2. REMOVE BACK DOOR SIDE GARNISH LH Click here 3. REMOVE BACK DOOR SIDE GARNISH RH Click here
