Toyota 4Runner: Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier
DESCRIPTION
The navigation receiver assembly sends a sound signal to the stereo component amplifier assembly via the sound signal 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, DCM (telematics transceiver)*1 or speakers.
- *1: w/ Manual (SOS) Switch
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY) |
(a) Disconnect the G6 navigation receiver assembly connector.
(b) Disconnect the N11 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 |
|---|---|---|
|
N11-5 (R+) - G6-1 (FR+) |
Always |
Below 1 Ω |
|
N11-4 (R-) - G6-5 (FR-) |
Always |
Below 1 Ω |
|
N11-3 (L+) - G6-2 (FL+) |
Always |
Below 1 Ω |
|
N11-2 (L-) - G6-6 (FL-) |
Always |
Below 1 Ω |
|
N11-6 (SLD) - Body ground |
Always |
10 kΩ or higher |
|
N11-5 (R+) - Body ground |
Always |
10 kΩ or higher |
|
N11-4 (R-) - Body ground |
Always |
10 kΩ or higher |
|
N11-3 (L+) - Body ground |
Always |
10 kΩ or higher |
|
N11-2 (L-) - Body ground |
Always |
10 kΩ or higher |
| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Speaker Circuit
DESCRIPTION
If there is a short in a speaker circuit, the stereo component amplifier
assembly detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers ...
Data Signal Circuit between Navigation Receiver Assembly and Extension Module
DESCRIPTION
The stereo component tuner assembly sends the sound data signal or image data
signal from a device to the navigation receiver assembly via this circuit.
WIRING DIAGRAM
CAUTION / NOT ...
Other materials about Toyota 4Runner:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the air conditioning system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
Rear Occupant Classification Sensor LH Collision Detection (B1787)
DESCRIPTION
DTC B1787 is stored when the occupant classification ECU receives a collision
detection signal, which is sent by the rear occupant classification sensor LH when
an accident occurs.
DTC B1787 is also stored when the separate type front seat cu ...
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