Electrical- Wipers, Lights, And Front Power Windows Inoperative
SI B61 17 12
General Electrical Systems
April 2012
Technical Service
SUBJECT
Wipers, Lights and Front Power Windows Are Inoperative
MODEL
F01, F02 (7 Series)
F07 (5 Series Gran Turismo)
F10 (5 Series)
Vehicles produced to March 2012
SITUATION
The wipers, lights and front power windows are inoperative. This situation may start as a sporadic failure and lead to a permanent fault. One or more
of the following faults may be stored:
^ FRM - "800E8D FRM: Terminal 30A, power window regulator failed"
^ FRM - "30000 Power window, drivers door: relay opening, no voltage"
^ FRM - "30018 Power window, drivers door: deactivation of drive due to overvoltage"
^ FRM - "3001E Power window, drivers door: no input voltage at relay"
^ FRM - "800E8B FRM: Terminal 30A connection for lights faulty"
CAUSE
Connector Z1*3B at the (Z1) front power distribution box in the passenger compartment is loose (the 7-pin connector is not fully seated into the
power distribution box).
2010 BMW 750i xDrive AWD (F01) V8-4.4L Turbo (N63) Page 88
PROCEDURE
1. Perform vehicle diagnosis using ISTA (Integrated Service Technical Application). If the faults listed above are stored in the FRM (Footwell
Module), proceed to the next step.
Note:
When the ISTA system message displays: "Battery voltage only "XX.XX" V. Please connect charger," please note the displayed battery
voltage reading in the repair order comments section.
2. Follow and complete test plan "AT6300_FRM3VS - Supply, footwell module (FRM)." The test plan is automatically linked to the stored
faults. The test plan will prompt to check the power supply to the FRM, which is supplied from the power distribution box via connector
Z1*3B.
3. If the voltage measured on the FRM power supply circuits is incorrect based on the test plan nominal values, check the back of the front power
distribution box 7-pin connector Z1*3B to make sure it is properly seated in place, by pushing it in until it locks.
Refer to ISTA Repair Instructions "6113050 Removing and installing/replacing power distribution box in passenger compartment."
4. PuMA feedback has indicated that the connector is not fully seated into the power distribution box.
5. Clear the faults and retest the system.
2010 BMW 750i xDrive AWD (F01) V8-4.4L Turbo (N63) Page 89
