P2642Low Severity

Supplemental Output Circuit Error / Component 2642

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

Common Symptoms of P2642

  • MIL Illumination
  • Reduced power

What Causes the P2642 Code?

  • Wiring issue
  • Component failure

How serious is the P2642 code?

Because this code has a low severity level, it is highly recommended to address it promptly. Driving with an active P2642 fault can lead to secondary component failures and decreased fuel economy.

How do you definitively diagnose and fix P2642?

To accurately diagnose the P2642 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 P2642 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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