P0606 on Ford
PCM Processor Fault
P0606 on Ford vehicles indicates pcm processor fault. Au7o has documented this code across 2 Ford models — most commonly on Fiesta, Focus. P0606 indicates an internal processor or performance fault within the powertrain control module (PCM) — essentially the engine's main computer has detected that one of its own internal circuits or processors is not functioning correctly. Because the PCM controls fuel, ignition, and many other functions, an internal fault can affect almost any aspect of engine operation. Symptoms range from no obvious effect to stalling, no-start, erratic running, or multiple unrelated trouble codes appearing together. This often points to the module itself, though power and ground supply issues can mimic it.
Common Causes of P0606
- •Poor power or ground supply to the PCM
- •Corroded, loose, or damaged PCM connectors
- •Low system/battery voltage or charging system fault
- •Water intrusion or corrosion at the module
- •Internal PCM hardware/processor failure
- •Failed or corrupted PCM software needing reflash
- •Wiring damage affecting the PCM power/ground circuits
P0606 on Ford by Model
Ford Fiesta(1 issue)
- DPS6 Transmission Control Module Can Cause Loss of Engagement or No-Start2011-2015
Ford Customer Satisfaction Program 14M02 covers certain 2011-2015 Fiesta vehicles with the DPS6 automatic transmission. Electrical circuit failures inside the transmission control module can cause intermittent loss of transmission engagement while driving, an intermittent no-start, or loss of power. The historical program supplied time- and mileage-limited extended coverage whose current applicability must be checked.
Ford Focus(1 issue)
- DPS6 Transmission Control Module Can Cause Loss of Engagement or No-Start2012-2016
Ford Customer Satisfaction Program 14M02 covers certain 2012-2016 Focus vehicles with the DPS6 automatic transmission. Electrical circuit failures inside the transmission control module can cause intermittent loss of transmission engagement while driving, an intermittent no-start, or loss of power. The historical program supplied time- and mileage-limited extended coverage whose current applicability must be checked.
Looking for P0606 on a different make?
View P0606 across all makes →Frequently Asked Questions
What does P0606 mean on Ford?▼
P0606 stands for "PCM Processor Fault." P0606 indicates an internal processor or performance fault within the powertrain control module (PCM) — essentially the engine's main computer has detected that one of its own internal circuits or processors is not functioning correctly. Because the PCM controls fuel, ignition, and many other functions, an internal fault can affect almost any aspect of engine operation. Symptoms range from no obvious effect to stalling, no-start, erratic running, or multiple unrelated trouble codes appearing together. This often points to the module itself, though power and ground supply issues can mimic it. On Ford specifically, this code is documented across 2 models.
What causes P0606 on Ford vehicles?▼
Common causes on Ford: Poor power or ground supply to the PCM, Corroded, loose, or damaged PCM connectors, Low system/battery voltage or charging system fault, Water intrusion or corrosion at the module, Internal PCM hardware/processor failure. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0606 on a Ford?▼
Repair costs vary widely depending on the root cause and specific Ford model.
Which Ford models have P0606 documented?▼
Au7o has documented P0606 on 2 Ford models: Fiesta, Focus.