P0607high severityPowertrain

Control Module Performance

on 1997 Subaru Impreza 2.2L H4 · AWD

What this code means

The PCM is not performing within expected parameters.

Symptoms

  • Check Engine Light
  • Various issues
  • Possible limp mode

Common causes

  • PCM internal issue
  • Power supply problem
  • Software glitch

Diagnostic steps

  1. Check PCM power and grounds
  2. Reprogram PCM
  3. Check for TSBs

Repair notes

Reprogram or replace PCM.

Other Powertrain codes on this vehicle

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