Question about 1993 BMW 7 Series

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A 1993 740iL power seat and mirrors stop working...the fuses are fine (i've tested them)...Can you tell me what else could be wrong? Thanks Lee

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I've seen this before but it will only apply if you have memory seating....Check to see if one of the memory positions are stuck in the select position (stuck down) then the memory computer will lock out all control functions like the mirrors and driver seat functions

Posted on Nov 13, 2008

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Which fuse controls front windshield wiper pump


Do the wipers work ? Fuse for wipers is same as washer pump .
Principles of Operation
The wiper motors receive inputs from the following:
  • Multi-function switch
  • Powertrain control module (PCM)
  • Ignition switch
  • Smart junction box (SJB)
The following components are integrated in the wiper motors:
  • Windshield wiper motor module
  • High/low speed relay
  • Run/park relay
  • Washer pump relay
  • Park sense (Hall-effect sensor)
Washer System
The windshield washer and the rear window washer are activated by the internal wiper motor modules when it receives a ground from the multi-function switch between the washer inputs. Depending on the correct ground, the internal wiper motor modules activate either the windshield washer or rear window washer relays (internal) by grounding the respective relay coil. When either module is activated, it connects voltage to the washer pump while the deactivated module provides ground to the washer pump. In this manner, voltage polarity is reversible to achieve directional change of the washer pump and washer fluid.
  • The washer pump is inoperative
  • Circuitry
  • Washer pump
  • Multi-function switch
  • Windshield wiper motor
  • Rear window wiper motor
  • Go To Pinpoint Test I .
Does your expedition have programmable/recall memory option for seats an mirrors ?
Driver Seat Module
The power driver seat and power exterior mirrors are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option.
On the Expedition Limited, the power fold exterior mirror option is controlled by the DSM. Before running a self-test or retrieving codes, the power fold switch must be inactive for at least 30 seconds.
This is a complex vehicle , electronics , control modules an serial data communication networks. You mite be better off taking it to the dealer or some other repair shop . There could be DTC'S - diagnostic trouble codes stored in the SJB - body control module !
B1667 Mirror Driver Up/Down Motor Stalled Go To Pinpoint Test D . B1668 Mirror Driver Right/Left Motor Stalled Go To Pinpoint Test D . B1669 Mirror Passenger Up/Down Motor Stalled Go To Pinpoint Test D . B1670 Mirror Passenger Right/Left Motor Stalled Go To Pinpoint Test D . B1735 Mirror Driver Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1739 Mirror Driver Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B1743 Mirror Passenger Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1747 Mirror Passenger Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B2312 Mirror Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2314 Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2316 Mirror Passenger Vertical Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2318 Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2320 Mirror Driver Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2322 Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . Normal Operation During normal operation, when the front wiper wash is selected, the windshield wiper motor provides power to the washer pump through circuit CRW14 (BU/WH) and ground is provided to the washer pump through circuit CRW12 (GY/OG) and the rear wiper motor. If rear wiper wash is selected, the rear wiper motor provides power to the washer pump through circuit CRW12 (GY/OG) and ground is provided to the washer pump through circuit CRW14 (BU/WH) and the windshield wiper motor.
    Possible Causes
  • Multi-function switch
  • Open in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN), CRW20 (GY/YE), SBB49 (RD) or GD149 (BK/GY)
  • Short to ground in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN) or CRW20 (GY/YE)
  • Washer pump
  • Windshield wiper motor
  • Rear wiper motor
    This is

Feb 02, 2016 | 2010 Ford Expedition

1 Answer

Driver side power seat and power mirrors not working


Driver door or seat module. All of these components are controlled by s module. You'll need a scan tool to properly diagnose.

Apr 19, 2014 | 2009 Ford Flex

1 Answer

04 Lincoln Navigator folding mirrors, seat memory, seat dont work


most likely a pinched wire around the seat causing a short to the seat frame every once in a while when the seat is in the right place. start with checking stuff that moves most often (driver's memory seat)

Aug 16, 2009 | 2005 Lincoln Navigator

1 Answer

My power driver's seat 1999 lincoln continental keeps returning to the full back position even when i drive.I changed the entire seat frame with new motors and gears, $500.00 no fix. I have to pull the #39...


does this have automatic seat positioning when you open the door or hit the unlock button on your key fob?

here's how it works:

Seats — Programmable
The memory seat system allows automatic positioning of the driver seat to two programmable positions using the message center, the key fob or the keypad on the door.
Seats — Driver Seat Module
The Driver Seat Module (DSM) is located under the driver's seat and is attached to the seat frame. The DSM will:
  • control the movements of the driver's seat and power exterior rearview mirrors
  • store and recall seat and mirror positions of two personalized settings
  • receive all power seat and mirror control inputs from the Driver's Door Module (DDM) through the J1850 communication network
  • move the exterior rearview mirrors downward when the transmission is shifted into reverse, if enabled.
Seats — Driver Door Module
The driver's seat regulator control switch is connected to the Driver Door Module (DDM). The DDM receives the driver's seat regulator control switch input and communicates the direction of movement over the J1850 communication network.
-----------------------------------------------------
Visual Inspection Chart Mechanical Electrical
  • Front seat tracks obstructed.
  • Seat at limit(s) of travel.
  • Open fuse junction panel Fuses 39 (10A), 41 (20A), and 28 (10A).
  • Open power distribution box Fuse 13 (30A).
  • Loose, corroded or damaged connectors.
  • Damaged switches.
  • Damaged motors

------------------------------------------------
Also, the dealer can run a scan on your seat modules with his tester and tell you what the codes are. They should only charge an hour to do this. Then you can decide what to do. Call your dealer and ask how much to run the scan test.

Aug 13, 2009 | 1999 Lincoln Continental

1 Answer

2000 Buick LeSabre where power locks, seats, windows quit working


If all power devices stopped at the same time you may have a bad fuse link. Since it is rare for all the fuses blowing at once and you already checked them. Start at your fuse links before assuming something expensive.

Aug 11, 2009 | 2000 Buick LeSabre

1 Answer

Power mirrors don't work. Which fuse controls this


Here is repair information from Mitchells:
1) Disconnect power mirror switch connector. Connect test light between power mirror switch harness connector terminal "A" (orange wire) and ground. If test light illuminates, go to the next step. If test light does not illuminate, repair open in orange wire between power mirror switch and righ rear power distribution center fuse block No. 1 (located under left side of rear seat).
2) Connect test light between power mirror switch harness connector terminals "A" (orange wire) and "J" (Black wire). If test light illuminates, check for poor connections at the power mirror switch. If connections are okay, replace power mirror switch. If test light does not illuminate, repair open in Black wire between power mirror switch and ground.

Aug 04, 2009 | 1997 Oldsmobile Aurora

1 Answer

First off, I'd like to say thank God for a site like this, and thank you for helping me "office drone1". And here is my last question for now. Today, I put on my 94' Grand Prix, the Passenger side power...


Since the locks stopped working as well, my guess is a fuse is blown. The first thing you should always do when accessories or lights or electrical things stop working is check all of your fuses (sometimes you'll have them in the engine bay as well as under the dash). I can't tell you how many times I've spent hours trying to track down an electrical problem only to discover that work I was previously doing had made a fuse blow.

It may also be a bad relay but I'd start with the fuses first.

Jun 14, 2009 | 1994 Pontiac Grand Prix

1 Answer

Driver side power seat and both remote mirrors don't work


Check fuse 30 (7.5amp) in the under dash fuse panel. This feed mirrors and Driver's seat switch.

Feb 12, 2009 | 2003 Ford Windstar

1 Answer

1995 cutlass electrical problems horn, radio, etc


Check your fuse it might be burned out, If you change it get the same AMP, If it burns again, upgrade the AMP.

Jan 12, 2009 | 1995 Oldsmobile Cutlass Ciera

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