Sienna AWD V6-3.3L (3MZ-FE) (2004)
b. If DTC of ECU communication stop is output, connectors may be disconnected, or communication buses may be open at 2 points. It will not
become abnormal with only 1 communication bus open.
c. If 2 communication buses are open at the position as shown in the illustration, DTC of ECU communication stop between those 2 buses is
output.
2. CHECK COMMUNICATION FUNCTION
a. Check the battery voltage.
Standard: 10 to 14 V
b. Inspect the DTC output.
1. Check a DTC concerning the multiplex network body ECU by connecting the hand-held tester to the DLC3 and turning the ignition switch
ON.