U1300 - Low Voltage On Class 2 Serial Data Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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U1300 Possible Causes

  • Repair other code first

First diagnose U1300 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 terminals.

U1300 Tech Notes

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

Cost of diagnosing the U1300 code

    Labor: 1.0

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

U1300 Possible Symptoms

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

U1300 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 - Low Voltage On Class 2 Serial Data Circuit - AutoCodes.com

U1300 More Information

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U1300 Information for specific makes

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Related Information

U1300 Comments

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