How long does it take to diagnose a p0685 code?
Check all the Engine Control Module (ECM) fuses, if the fuses are OK, then replacing the ECM relay should take care of the problem. The cost to diagnose the P0685 code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.
What does p0685 mean on a power relay?
This causes the contacts inside of the relay to close; essentially completing a circuit thus providing battery voltage to the output terminal and consequently to the PCM. Since the code P0685 is usually accompanied by a no-start condition, ignoring it will not likely be an option.
Why does my ECM have the code p0685?
Since the code P0685 is usually accompanied by a no-start condition, ignoring it will not likely be an option. If this code is present and the engine will start and run, suspect a faulty PCM or a PCM programing error. Potential causes for this code to set are:
What is the fault code for the PCM?
P0685 is the fault code for ECM/PCM Power Relay Control Circuit /Open. The PCM (powertrain control module) receives data about the vehicle’s operating conditions from various areas in the system.
What does trouble code p0685 stand for?
P0685 is a diagnostic trouble code (DTC) for “ECM/PCM Power Relay Circuit Malfunction”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $84.99.
P0685 is the fault code for ECM/PCM Power Relay Control Circuit /Open. The PCM (powertrain control module) receives data about the vehicle’s operating conditions from various areas in the system.
Why does my car have no start code?
Although generic, the engines differ between brands and may have slightly different causes for this code. In my personal experience, a no-start condition will most likely accompany a code P0685.