Sienna AWD V6-3.3L (3MZ-FE) (2004)
Audible Warning Device: Pinout Values and Diagnostic Parameters
TERMINALS OF ECU
INSPECT INSTRUMENT PANEL J/B ASSY (MULTIPLEX NETWORK BODY ECU)
a. Disconnect the B6 ECU connector.
b. Disconnect the 1C, 1K and 1L J/B connectors.
c. Check the voltage and resistance between each terminal of the wire harness side connectors and body ground.