Sound Signal Circuit between Multi-media Interface ECU and Stereo Jack Adapter (TO 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

Disconnect the multi-media interface ECU and No. 1 stereo jack adapter assembly connectors.

Fig 1: Identifying Multi-Media Interface Ecu And No. 1 Stereo Jack Adapter Assembly Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
M3-3 (UDO+) - E46-2 (UDI+)	Always	Below 1 Ω
M3-2 (UDO-) - E46-3 (UDI-)	Always	Below 1 Ω
M3-5 (UJSS) - E46-5 (UESS)	Always	Below 1 Ω
M3-3 (UDO+) - Body ground	Always	10 kΩ or higher
M3-2 (UDO-) - Body ground	Always	10 kΩ or higher
M3-5 (UJSS) - Body ground	Always	10 kΩ or higher

TEXT IN ILLUSTRATION

*a	Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)
*b	Front view of wire harness connector (to Multi-media Interface ECU)

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