OBD-II DTC Technical Description
Control Module Performance
What does that mean?
This diagnostic trouble code (DTC) is a generic powertrain code, which indicates that it is applicable to vehicles equipped with OBD-II. Although it is a generic code, the specific repair steps may vary depending on the make and model of the vehicle.
This code essentially signifies a failure in the programming of the PCM/ECM (powertrain/engine control module). It can be a more serious code and may also be referred to as “ECM Internal Circuit Malfunction”.
Symptoms
Causes
A P0607 can be caused by one or more of the following:
Possible Solutions
As a vehicle owner, there is not much you can do yourself to diagnose this DTC. The first step is to check the battery, including the voltage and inspecting for loose or corroded terminals. It is also important to inspect the grounds and wiring at the PCM. If these checks are satisfactory, the common fixes for a P0607 Control Module Performance DTC are either replacing the PCM or updating (re-flashing) the PCM with updated software. It is recommended to check for TSBs (Technical Service Bulletins) for your specific vehicle, as there are known TSBs for this P0607 code in some Toyota and Ford vehicles.
If the PCM needs to be replaced, it is strongly advised to have a qualified repair shop or technician perform the work, as they will have the capability to reprogram the new PCM. Installing the new PCM may require the use of special tools to program the vehicle’s VIN (vehicle identification number) and/or anti-theft information (PATS, etc.).
NOTE: This repair may be covered under the emissions warranty, so it is recommended to check with your dealer as it may be covered beyond the bumper-to-bumper or powertrain warranty period.
Other PCM DTC codes: P0600, P0601, P0602, P0603, P0604, P0605, P0606, P0608, P0609, P0610.
