LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 182 (Multiplex Communication System) >> Diagnostic Tests >> DTC B1273/73: Moon Roof Ecu Communication Stop >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is output when communication stops between the moon roof ECU and body ECU for more than 10 seconds. For circuit diagram, see Figure.

Trouble Area