Cadillac U2150: Navigation ECU Gateway Communication Error
Is your scanner showing Cadillac U2150?
No worries. We'll show you what it means and how to deal with it.
Cadillac U2150: Navigation ECU Gateway Communication Error
OVERVIEWWhat Does The Cadillac U2150 Code Mean?
The navigation module (NAV) must detect a power mode transition from the OFF-ASLEEP state to one of the following: ACC ON
What Are The Potential Causes Of The Cadillac U2150 Code?
Test for intermittents on the navigation display serial data high circuit and the navigation display serial data low circuit. Test for intermittents on the navigation module (NAV) supply and ground circuits.
Reference Sources
Cadillac U2150, DTCDECODE.
