Audio And Visual System (W/O Navigation System) Sound Signal Circuit Between Radio Receiver And Multi-Media Interface Ecu
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - MULTI-MEDIA INTERFACE ECU)
AUDIO AND VISUAL SYSTEM (w/o Navigation System) - Sound Signal Circuit between Radio Receiver and Multi-media Interface ECU |
DESCRIPTION
The multi-media interface ECU sends sound signals to the radio receiver assembly through 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 stereo component amplifier assembly, radio receiver assembly or speakers.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - MULTI-MEDIA INTERFACE ECU) |
Disconnect the F55 radio receiver assembly and L40 multi-media interface ECU connectors.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
L40-1 (USD1) - F55-1 (CSLD)
| Always
| Below 1 Ω
|
L40-2 (URO+) - F55-2 (CDR+)
| Always
| Below 1 Ω
|
L40-3 (URO-) - F55-3 (CDR-)
| Always
| Below 1 Ω
|
L40-4 (ULO+) - F55-4 (CDL+)
| Always
| Below 1 Ω
|
L40-5 (ULO-) - F55-5 (CDL-)
| Always
| Below 1 Ω
|
L40-1 (USD1) - Body ground
| Always
| 10 kΩ or higher
|
L40-2 (URO+) - Body ground
| Always
| 10 kΩ or higher
|
L40-3 (URO-) - Body ground
| Always
| 10 kΩ or higher
|
L40-4 (ULO+) - Body ground
| Always
| 10 kΩ or higher
|
L40-5 (ULO-) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK |
|
|
|
| PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here) |
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