P2511 GMC - ECM/PCM Power Relay Sense Circuit Intermittent

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty ECM/PCM Power Relay
  • ECM/PCM Power Relay harness is open or shorted
  • ECM/PCM Power Relay circuit poor electrical connection

Possible symptoms

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

P2511 Gmc Description

The Powertrain Control Module (PCM)/Engine Control Module (ECM) monitors the voltage to the ECM/PCM Power Relay. The ECM/PCM set the OBDII code set when the ECM/PCM Power Relay is out of factory specifications.
OBDII Code P2511 Gmc - ECM/PCM Power Relay Sense Circuit Intermittent - AutoCodes.com

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P2511 GMC Comments

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