U1510 CADILLAC - Lost Communication With HVAC Control Module
Faulty HVAC Control Module
HVAC Control Module harness is open or shorted
HVAC Control Module circuit poor electrical connection
Engine Light ON (or Service Engine Soon Warning Light)
U1510 Cadillac Description
The serial data is transmitted over a Local Interconnect Network (LIN) single wire network circuit bus between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, a no communication code against the non-communicating LIN device will be set. A master control module is the one that reports the non communication code. A loss of serial data communications DTC does not represent a failure of the master control module that set it.