P2871Medium Severity

Supplemental Output Circuit Error / Component 2871

This diagnostic trouble code indicates a malfunction in the associated component circuit.

Common Symptoms of P2871

  • MIL Illumination
  • Reduced power

What Causes the P2871 Code?

  • Wiring issue
  • Component failure

How serious is the P2871 code?

Because this code has a medium severity level, it is highly recommended to address it promptly. Driving with an active P2871 fault can lead to secondary component failures and decreased fuel economy.

How do you definitively diagnose and fix P2871?

To accurately diagnose the P2871 fault code, you need the exact OEM wiring diagram and diagnostic test procedures for your specific vehicle. Create an Auto Fix Data account to instantly pull the factory diagrams for this fault.

Fix P2871 Now

Access the OEM repair manual and interactive wiring diagram to diagnose this exact code.

  • Pin-to-pin wiring diagrams
  • Component testing steps
  • Technical Service Bulletins
  • Identifix confirmed fixes

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