P0607 Control Module Performance

OBD-II DTC Trouble Code P0607 - Datasheet

Control module performance.

DTC P0607 indicates a performance problem with the control module. This code is often associated with trouble codes P0602, P0603, P0604, P0605 и P0606 .

What does trouble code P0607 mean?

This Diagnostic Trouble Code (DTC) is a generic transmission code, which means it applies to OBD-II equipped vehicles. Although general, specific repair steps may differ depending on the brand / model.

This code basically means the PCM / ECM (Powertrain / Engine Control Module) programming failed. This could be a more serious code and could also be called ECM Internal Circuit Malfunction.

Symptoms

DTC P0607 is usually accompanied by a Check Engine Soon warning light. The car may also have trouble starting or not start at all (although the engine will most likely start). If the car starts, you may experience some engine problems and the car may even stall while driving. Fuel consumption and driving smoothness are also likely to have a negative impact.

The P0607 code will illuminate the MIL (Malfunction Indicator Light). Other potential symptoms of P0607 include:

• the vehicle can also go into homeless mode when it is running at reduced power.
• No start condition (starts but does not start)
• may stop working while driving

Photo of the PKM with the cover removed:

Causes of the P0607 code

P0607 can be caused by one or more of the following:

• Loose ground terminal on PCM / ECM
• Battery discharged or defective (main 12 V)
• Open or short circuit in the power supply or ground
• Loose or corroded battery terminals
• Defective PCM / ECM
• The ECM has failed due to physical damage, water in the ECM, or corrosion.
• Electronics in ECM is defective
• ECM wiring harness not routed correctly.
• Car battery is dead or dying
• Battery cables are loose, disconnected, or corroded
• Car alternator is defective
• The ECM has not been reprogrammed correctly or the software has not been updated.

Possible solutions

As a vehicle owner, there is not much you can do to diagnose this DTC. The first thing to check is the battery, check for voltage, check for loose/corroded terminals, etc. and do a load test. Also check the ground/wiring at the PCM. If it's good, other general fixes for P0607 Performanc Control Unite The DTC appears to either replace the PCM or update (reprogram) the PCM with updated software. Be sure to check for TSBs on your vehicle (service bulletins) as there are known TSBs for this code P0607 for some Toyota and Ford vehicles.

If the PCM needs to be replaced, we strongly recommend that you go to a qualified repair shop / technician who can reprogram the new PCM. Installing a new PCM may involve using special tools to program the vehicle's VIN (Vehicle Identification Number) and / or anti-theft information (PATS, etc.).

NOTE. This repair may be covered by an emissions warranty, so be sure to check with your dealer as it may be covered beyond the warranty period between bumpers or transmission.

Other PCM DTCs: P0600, P0601, P0602, P0603, P0604, P0605, P0606, P0608, P0609, P0610.

How does a mechanic diagnose a P0607 code?

The P0607 code is first diagnosed using an OBD-II trouble code scanner. A qualified mechanic will review the freeze frame data to try to identify any related problems or clues to the P0607 code. The trouble codes will then be reset and the car restarted to check if the codes remain. If the P0607 code does not reappear, the ECM may be operational, although the mechanic should still check the electrical system to make sure everything is in working order.

If code P0607 returns after the DTC is cleared, the technician will first check the electrical system. If the battery or alternator is not providing proper power to the engine control module, the engine control module may malfunction and a P0607 code may appear. If the battery and alternator are in working order, the mechanic will inspect the ECM itself to make sure there is no water damage, corrosion, poor connections, or improperly routed wiring.

If the mechanic cannot find any problems, then the ECM should update the software.

Common Mistakes When Diagnosing Code P0607

The most common error in diagnosing code P0607 is not following the correct protocol for diagnosing the DTC. If the technician skips steps, they may misdiagnose the code. It is important for the mechanic to inspect the electrical system before the ECM, as problems with the electrical system will be quicker and easier to fix.

How serious is the P0607 code?

Code P0607 can vary in severity. Sometimes the code is random and there is no real problem with the ECM or the vehicle. However, in the worst case, a P0607 code means the ECM is faulty or the battery is dead. Since the ECM is responsible for the correct operation of your vehicle's transmission and engine, code P0607 may mean that your vehicle cannot be steered.

What repairs can fix code P0607?

General fixes for code P0607 depend on the problem. Some of the possible fixes include:

• Reset fault codes
• ECM reprogramming or software update
• Battery Replacement or battery cables
• Generator repair or replacement
• Replacement of electronics in ECM
• ECM wiring harness redirection
• Replacing the entire computer

Additional comments to consider regarding code P0607

If your battery has recently been replaced, the engine control unit may have lost power and needs to be reprogrammed.

What is P0607 Engine Code [Quick Guide]

Need more help with your p0607 code?

If you still need help with DTC P0607, post a question in the comments below this article.

NOTE. This information is provided for informational purposes only. It is not intended to be used as a repair recommendation and we are not responsible for any action you take on any vehicle. All information on this site is protected by copyright.