AutoCodes - Cadillac - U1300 CADILLAC

U1300 CADILLAC Code - Low Voltage On Class 2 Serial Data Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U1300 CADILLAC code possible causes

  • Repair other code first

|How do I fix the U1300 CADILLAC code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|U1300 CADILLAC code tech notes

In most cases, the U1300 code is combined with other codes, fix other codes first.

|Cost of diagnosing the U1300 CADILLAC code

Labor: 1.0

The cost of diagnosing the U1300 CADILLAC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are U1300 CADILLAC code possible symptoms?

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

|U1300 CADILLAC code 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 Diagnostic Trouble Code (DTC) is inhibited and a DTC will set.
OBDII Code U1300 Cadillac - Low Voltage On Class 2 Serial Data Circuit -

|Need more information with the U1300 CADILLAC code?

Need more information on how to fix the U1300 CADILLAC code? Get Access to Factory Service Manuals

|Need help with a U1300 CADILLAC code?

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

|U1300 CADILLAC code comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U1300 Cadillac code? Have you replaced any parts?
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