Problems
#4
12-04-2015, 02:32 AM
4.6
4.6 and it's 04 what exactly is the controller network and how do I fix this
#5
12-04-2015, 05:26 AM
Instead of running individual wires for various sensors and controls they use modules and a common bus wire to transmit info over just 2 wires to connect the modules to one another. Early vehicles had several modules that controlled lights, radio , instruments, fuel, door locks , windows etc. Newer vehicles have over 50 modules all tied into a network where info is shared like, ABS, stability control,navigation, HVAC etc.
There is a BCM (body control module ) that controls info for things like wipers lights and so on. A quality scan tool is required to check out these systems .
They can get so complicated where for instance the left rear tail light is controlled by a different section from the right tail light.
A good portion of the time poor connections are the problem (power and grounds) and sometimes a module has to be replaced and programmed to know what to control.
With your particular vehicle , I would look at the inside fuse panel under the driver's side dash. They were known for the windshield leaking on the panel and causing problems that were unexplainable since a slight bit of, water caused corrosion, affected the voltages for some of the system.
There is a Smart Junction Box at the fuse panel that also acted as a body control module and might be responsible for the weird happenings. A thorough visual inspection there might help to pin down if that is the problem area.
There is a BCM (body control module ) that controls info for things like wipers lights and so on. A quality scan tool is required to check out these systems .
They can get so complicated where for instance the left rear tail light is controlled by a different section from the right tail light.
A good portion of the time poor connections are the problem (power and grounds) and sometimes a module has to be replaced and programmed to know what to control.
With your particular vehicle , I would look at the inside fuse panel under the driver's side dash. They were known for the windshield leaking on the panel and causing problems that were unexplainable since a slight bit of, water caused corrosion, affected the voltages for some of the system.
There is a Smart Junction Box at the fuse panel that also acted as a body control module and might be responsible for the weird happenings. A thorough visual inspection there might help to pin down if that is the problem area.
