Audio Visual Telematics. Corolla. Zre142 Aze141
Navigation Multi Info Display. Corolla. Zre142 Aze141
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - EXTENSION MODULE)
NAVIGATION SYSTEM - Sound Signal Circuit between Radio Receiver and Extension Module |
DESCRIPTION
The extension module sends the sound signal to the radio and display receiver assembly via this circuit.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 radio and display receiver assembly, extension module or speakers.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - EXTENSION MODULE) |
Disconnect the radio and display receiver assembly connector.
Disconnect the extension module connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition f3-2 (R+) - f1-13 (R+) Always Below 1 Ω f3-3 (R-) - f1-12 (R-) Always Below 1 Ω f3-4 (L+) - f1-15 (L+) Always Below 1 Ω f3-5 (L-) - f1-14 (L-) Always Below 1 Ω f3-1 (SHD3) - f1-28 (SHD3) Always Below 1 Ω f3-2 (R+) - Body ground Always 10 kΩ or higher f3-3 (R-) - Body ground Always 10 kΩ or higher f3-4 (L+) - Body ground Always 10 kΩ or higher f3-5 (L-) - Body ground Always 10 kΩ or higher f3-1 (SHD3) - Body ground Always 10 kΩ or higher
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| OK | ||
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