DTC P0606: Powertrain Control Module (Pcm) Processor
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Mariner, and 2006 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0606 - POWERTRAIN CONTROL MODULE (PCM) PROCESSOR
| Description: | P0606 indicates a register readback (PCM internal communications) error. | ||
| Possible Causes: |
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| Diagnostic Aids: | For electronic throttle control (ETC) applications, an internal PCM concern, or an ETC system failure mode effect management (FMEM) condition exists. Diagnose other DTCs first. For all others, an internal PCM concern may be present. For both applications if only DTC P0606 is present, clear the DTCs. Repeat the self-test. Repair as necessary. If DTC P0606 is retrieved again, install a new PCM. Refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Vehicles With Electronic Throttle Control (ETC) | The DTC is an indication of a failure mode in the electronic throttle control system, which includes the accelerator pedal position (APP) sensor, electronic throttle body (ETB), and PCM. It is accompanied by other DTCs which provide repair direction. Diagnose and repair those DTCs, and the DTC P0606 will not be reset. If only DTC P0606 is present, clear the DTCs. Repeat the self-test. If DTC P0606 is retrieved again, install a new PCM. Refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . | ||
| All others | Reprogram or update the calibration. Check for other DTCs and diagnose those first. Make sure to check for aftermarket performance products before installing a new PCM. Clear the DTCs, repeat the self-test. If the DTC is retrieved again, install a new PCM. Refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . | ||