DTC P0606: Powertrain Control Module Internal Communication Error
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P0606 - POWERTRAIN CONTROL MODULE INTERNAL COMMUNICATION ERROR
| Description: | P0606 indicates a register readback (PCM internal communications) error. | ||
| Possible Causes: |
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| Diagnostic Aids: | An internal PCM failure, or a system FMEM condition exists. Repairing the other DTCs can fix the P0606. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test QE . | ||