Sound Signal Circuit between Radio Receiver and Multi-media Interface ECU (FROM 12/2010): Procedure
WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - MULTI-MEDIA INTERFACE ECU)
- Disconnect the radio receiver assembly and multi-media interface ECU connectors.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition E41-2 (URO+) - E35-2 (CDR+) Always Below 1 Ω E41-3 (URO-) - E35-3 (CDR-) Always Below 1 Ω E41-4 (ULO+) - E35-4 (CDL+) Always Below 1 Ω E41-5 (ULO-) - E35-5 (CDL-) Always Below 1 Ω E41-1 (USD1) - Body ground Always 10 kΩ or higher E41-2 (URO+) - Body ground Always 10 kΩ or higher E41-3 (URO-) - Body ground Always 10 kΩ or higher E41-4 (ULO+) - Body ground Always 10 kΩ or higher E41-5 (ULO-) - Body ground Always 10 kΩ or higher
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 2
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE