P0607 – Control Module Performance

Description

The ECM detects a general internal performance malfunction.

Want to confirm the real cause of this fault code?

A high-quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze-frame information — exactly what you need to verify the root cause of this code with confidence.

View Recommended Scanners

Symptoms

  • Stalling
  • No start
  • Reduced power

Causes

  • ECM failure
  • Voltage instability
  • Poor grounds

Diagnosis

  • Scan for ECM faults
  • Check charging system
  • Inspect grounds

Repair

  • Replace ECM
  • Repair wiring
  • Fix power/ground issues