OBDII Code List

U1300 BUICK - Low Voltage On Class 2 Serial Data Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

Possible causes

  • Repair other code first

Tech notes

In most cases, the P1300 code is combined with other codes, fix other codes first.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

U1300 Buick 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.
OBDII Code U1300 Buick - Low Voltage On Class 2 Serial Data Circuit -

Need more help?

Get the U1300 Buick code diagnosed by a professional: Find a repair shop in your area

Related Information

U1300 BUICK Comments

Help us improve Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the U1300 Buick code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧