P2635 – Fuel Pump Control Circuit Short

Description

The ECM detects a short circuit in the fuel pump control circuit.

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

  • Rough idle
  • Poor acceleration
  • Check engine light

Causes

  • Wiring short
  • Faulty pump
  • ECM issue

Diagnosis

  • Inspect wiring
  • Test pump
  • Check ECM

Repair

  • Repair wiring
  • Replace pump

Related Problems