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AutoCodes - Generic - P143B

P143B Code - Reductant Control System Information Signal Message Counter Incorrect

- Code Popularity: 1,105 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P143B?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Reductant Control System
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How to Fix the DTC P143B?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P143B code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P143B Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Reductant Control System Information Signal Message Counter is Incorrect.

OBDII Code P143B - Reductant Control System Information Signal Message Counter Incorrect - AutoCodes.com
P143B Code - Reductant Control System Information Signal Message Counter Incorrect

Need More Information on the Code?

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Information for Specific Makes

  • P143B Buick Reductant Control System Information Signal Message Counter Incorrect  📷
  • P143B Cadillac Reductant Control System Information Signal Message Counter Incorrect  📷
  • P143B Chevrolet Reductant Control System Information Signal Message Counter Incorrect  📷
  • P143B GMC Reductant Control System Information Signal Message Counter Incorrect  📷

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Code P143B comments

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