Toyota Camry (XV70): Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier
DESCRIPTION
The radio and display receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit.
The sound signal that is sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers.
If there is an open or short in this circuit, sound cannot be heard from the speakers even if the stereo component amplifier assembly or speakers are not malfunctioning.
WIRING DIAGRAM
PROCEDURE
| 1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY) |
(a) Disconnect the K4 radio and display receiver assembly connector.
(b) Disconnect the K10 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 |
|---|---|---|
|
K10-5 (R+) - K4-1 (FR+) |
Always | Below 1 Ω |
|
K10-4 (R-) - K4-6 (FR-) |
Always | Below 1 Ω |
|
K10-3 (L+) - K4-2 (FL+) |
Always | Below 1 Ω |
|
K10-2 (L-) - K4-7 (FL-) |
Always | Below 1 Ω |
|
K10-6 (SLD) - Body ground |
Always | 10 kΩ or higher |
|
K10-5 (R+) or K4-1 (FR+) - Body ground |
Always | 10 kΩ or higher |
|
K10-4 (R-) or K4-6 (FR-) - Body ground |
Always | 10 kΩ or higher |
|
K10-3 (L+) or K4-2 (FL+) - Body ground |
Always | 10 kΩ or higher |
|
K10-2 (L-) or K4-7 (FL-) - 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 |
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DESCRIPTION This procedure is for troubleshooting when the brake warning light (yellow) remains on but no DTCs are output.
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1.
CHECK
Removal
REMOVAL PROCEDURE 1. PRECAUTION (w/o Navigation System)
NOTICE:
When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occurs:
A communication mal
