Mysterious Electronic Intermittent Problems on 02 X5 4.4i
 

Hi,

Everything started when my PDC stopped working, but not at all times, it´s intermittent, a long beep from rear and PDC light blinking. I tried to fix it, i checked all conections and wires, PDC BOX, all sensors, but everything was alright. Few days later, a warning of SUSP INACT Appears on the check control, but it´s intermittent also, i checked 30 AMP Fuse and 7.5 AMP Fuse, both were good. Then the next intermittent problem was the (P R N D) small orange ball light on the shift, some times the light is on and some time is off. But all those problems are intermittent. If i turn off the car and turn on again, the problems are solved, or not !!??! Those problems are making me crazy !? Now, when i parked my car in the garage everything was fine !! But i turn it on again just to check and PDC stopped worked again !!
Please can somebody help me ???

Thank You

Ricardo

ECU? see if you can pull up any codes on a diagnostic machine.

I put the DIS, and MRS4 - 50 code. Maybe a low voltage, but the battery is OK, and with green light. But if i pull off the black conector behind the FUSE HOLDER(Inside Glovebox)wait about 15 seconds and Pull on again, the light comes on again an PDC works again, but if i drive some minutes the problems back again. Please can somebody help me ???