U1305 CHEVROLET – High Or Low Voltage On Class 2 Serial Data Circuit

 

U1305 CHEVROLET Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

U1305 CHEVROLET Possible Causes

 

Repair other code first

 

U1305 CHEVROLET Description

 

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. In addition to this, Node Alive messages are transmitted by each module on the class 2 serial data circuit about once every 2 seconds. When the module detects one of the following conditions on the class 2 serial data circuit for approximately 3 seconds, the setting of all other class 2 serial communication DTCs is inhibited and a DTC will set.