Conditions For Setting The DTC
WARNING: This page is about a different car, the 2005 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
There is no response from the VICS module when queried by the navigation radio after successfully initializing the system.
The navigation radio does not receive information from the VICS module when the radio detects a power mode transition to ON.