vwroad87 wrote:
GordnadoCRD wrote:
It doesn't mean the units, it's the wiring/connectors/etc. Not the sensors themselves, although they could cause a no start condition. Good you know you truly have some known good units.
Yes check the harness very carefully, it took me almost 9 months of fiddling with my jeep on and off until I found this part of the harness. This caused 13 CELs to pop and the ASD fuse as well. This was near the A/C accumulator on the passenger side firewall on an exposed piece of harness
Now it's taped and split loomed!
I'll be going through the wiring next chance I get.
Also, I found the following information in a previous post .."The circuit grounds through the Front Control Module (FCM), not directly to ground." What is a "Front Control Module"?
This FCM is just to the side of where the chaffed ground wires that I found earlier were located.
"The Front Control Module (FCM) (2)(FRONT CONTROL MODULE) is located in the engine compartment below the Power Distribution Center (PDC), below the battery tray. The FCM's primary function is to define communications between electronic controllers and move data collected from the multiple controllers to the host controller for processing using Controller Area Network (CAN), Programmable Communication Interface (PCI) buss or J1850. The FCM does not contain any drivers, and therefore does not directly operate any vehicle components."
"the Front Control Module (Gateway module)controls the fuel level sensor, low oil pressure light, A/C pressure sensor, generator/alternator field control, and Water In Fuel Sensor"
The fuel codes I'm getting maybe due to this module being faulty since it controls the fuel level sensor.
This FCM is used in the 2005 CRD only.
FCM - Mopar part number 56044599AF = Part is no longer available from Chrysler, part has been discontinued.
Is anyone parting out a 2005 CRD that will sell their FCM?