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P1001 GMC Code - Evaporative Emission System Signals Message Counter Incorrect

- Code Popularity: 472 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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Code P1001 GMC Possible Causes

  • Faulty Evaporative Emission System

How do I Fix the Code P1001 GMC?

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.

Does your GMC have Safety Recalls? → Check here

What is the Cost to Diagnose the Code P1001 GMC?

Labor: 1.0

The cost of diagnosing the P1001 GMC 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.

What are Code P1001 GMC Possible Symptoms?

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

Code P1001 GMC 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 Evaporative Emission System Signals Message Counter is Incorrect.

OBDII Code P1001 GMC - Evaporative Emission System Signals Message Counter Incorrect -
P1001 GMC Code - Evaporative Emission System Signals Message Counter Incorrect

Need More Information on the P1001 GMC Code?

Need more information on how to fix the P1001 GMC code? Get Access to Factory Service Manuals

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Code P1001 GMC comments

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