How to troubleshoot a PCM Power relay fault?
The best way to fix this code which relates to the open circuit of the PCM relay is to troubleshoot the code P06805. You can do this by recording the fault cdes to diagnose the issue later on. Then, locate the PCM power relay and determine which wire leads to what part of the terminal and the function of each wire.
Can a bad relay cause a no crank condition?
A bad (ASD) relay can indirectly, and sometimes directly, cause a starting circuit to not have power; which will result in a no crank condition when you turn the key. Check Engine Light Comes On Another symptom of a possible problem with the (ASD) relay is an illuminated Check Engine Light .
How can I check if my relay is working?
Using an ohmmeter, check for continuity between the two power terminals. If there is continuity, the relay is working properly. Otherwise, replace the relay. Always check for severe corrosion on the (ASD) relay socket terminals. Check for broken wires under the (ASD) main relay box.
What does it mean when a relay does not click?
If you hear or feel the relay click, the relay and its wiring aren’t the problem. But if it’s not clicking, the problem could be in the relay itself or in the wiring.
When does a PCM Power relay go out?
One of the first signs and one of the more obvious symptoms of an issue within the PCM power relay system is no production of power when the key goes into the ignition, and the relay fails to provide power to the entire vehicle.
What is the function of the Powertrain Control Module?
In most cars, it has to monitor any other functions related to the engine and transmission systems. Also, in some vehicles, the powertrain control module might have to operate the traction control system and the anti-lock brake system. The anti-lock brake system is designed to prevent your car from skidding.
How does the OBD-II contact relay work?
This type of contact relay is activated using a signal wire or the ignition switch. This relay applies to all vehicles that use the OBD-II system, especially those vehicles that are newer than 1996 to the present.