What does fault code p0685 mean in OBD II?
What Does Code P0685 Mean? OBD II fault code P0685 is a generic code that is defined as “ECM/PCM power relay -circuit open”, and is set when the PCM (Powertrain Control Module) detects that its own power supply has failed, or if it detects a low voltage in the circuit that supplies it with power.
What causes a p0685 power supply circuit to open?
Some common causes of code P0685 could include the following- Defective PCM power-supply relay Low system voltage Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors, including battery terminals Defective ignition switch Failed or failing PCM or other control module.
How much does it cost to fix Honda p0685 code?
The cost of diagnosing the P0685 HONDA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour. The Engine Control Module ( ECM) monitors the power inputs.
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:
The cost of diagnosing the P0685 HONDA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour. The Engine Control Module ( ECM) monitors the power inputs.
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.
How to fix p0685 Engine Control Module control circuit open?
How do I fix code P0685 Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. P0685 Tech Notes
How much does it cost to repair a p0685 relay?
The cost of diagnosing 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. Most auto repair shops charge between $75 and $150 per hour. The powertrain relay is a normally open relay.
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.
How do I fix code P0685 Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. P0685 Tech Notes
How long does it take to repair a p0685 ECM relay?
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 of diagnosing 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 Code P0685 Mean? OBD II fault code P0685 is a generic code that is defined as “ECM/PCM power relay -circuit open”, and is set when the PCM (Powertrain Control Module) detects that its own power supply has failed, or if it detects a low voltage in the circuit that supplies it with power.
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.
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 of diagnosing 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.