P2636 – Fuel Pump Control Circuit Performance

Description

The ECM detects abnormal fuel pump control circuit performance.

Need More Than Just the Fault Code?

A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.

Compare Diagnostic Scanners

Symptoms

  • Poor acceleration
  • Hesitation
  • Check engine light

Causes

  • Weak pump
  • Wiring issues
  • ECM fault

Diagnosis

  • Test pump
  • Inspect wiring
  • Check ECM

Repair

  • Replace pump
  • Repair wiring