P0606 - ECM/PCM Processor

ECM detected an internal processor fault.

Code Overview

ECM detected an internal processor fault.

Common Causes

• Low voltage event
• Harness/connector issue
• ECM/PCM failure (rare)

Diagnostic Steps

1. Check power/grounds to ECM
2. Check for water intrusion
3. Verify charging voltage stability

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.