1994 BMW 740 help

Tiny
CHRIS 2009
  • MEMBER
  • 1994 BMW 740
Transmission problem
1994 BMW 740 V8 Two Wheel Drive Automatic

I need help on finding the transmission sensor. Think I found it, but I need a diagram, but cant find one. If u could help me, I would appreciate it a lot. Also, I need to know if there is still a recall on this model also.
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Sunday, January 24th, 2010 AT 11:03 PM

2 Replies

Tiny
DR LOOT
  • EXPERT
It would be much helpful if you can just get me the code that the transmission is giving you it should be one of these:
DIAGNOSTIC TROUBLE CODE DEFINITIONS
(1) DTC Description
3 Kickdown Switch
4 Program Switch
5 Throttle Valve Signal
6 Solenoid Valve MV1
7 Solenoid Valve MV2
8 Solenoid Valve MV1, Solenoid Valve MV2
9 Solenoid Valve MV R-Inhibit
10 Solenoid Valve MV1, Solenoid Valve MV R-Inhibit
11 Solenoid Valve MV2, Solenoid Valve MV R-Inhibit
12 Solenoid Valve MV1, Solenoid Valve MV2, Solenoid Valve MV R-Inhibit
13 Solenoid Valve Torque Converter Clutch Unit
14 Solenoid Valve MV1, Solenoid Valve Torque Converter Clutch Unit MV WK
15 Solenoid Valve MV2, Solenoid Valve Torque Converter Clutch Unit
16 Solenoid Valve MV1, Solenoid Valve MY2, Solenoid Valve Torque Converter Clutch
17 Solenoid Valve MV R-Inhibit, Solenoid Valve Torque Converter Clutch Unit
18 Solenoid Valve MV 1, Solenoid Valve MV R-Inhibit, Solenoid Valve Torque Converter Clutch Unit
19 Solenoid Valve MV 2, Solenoid Valve MV R-Inhibit, Solenoid Valve Torque Converter Clutch Unit
20 Voltage Supply For Solenoid Valve & Pressure Regulator
21 Engine Speed Signal TR
22 Pressure Regulator
23 Ignition Angle
24 Speed Sensor N-AB
25 Overrev Protection
26 Ignition Signal TI
27 Speed Sensor Or Torque Converter
30 No Kickdown Functions Are Performed
31 Only Kickdown Functions Are Performed
32 S Program Cannot Be Selected
33 M Program Cannot Be Selected
34 Program Switchover Is Not Possible. Only E Program
35 Only Full Load Functions Are Performed
36 Shifting Is Jerky (Shift Impact)
37 Despite Normal Operation, TRANSMISSION Appears In Instrument Cluster
40 Diagnostic Line TxD Has A Break Or Short To Battery Or Short To Ground
41 Diagnostic Line RxD Has A Break Or Short To Battery Or Short To Ground
42 Power Supply To AEGS Control Unit Pin No. 34 Is Interrupted
43 Selector Lever Is Not In Position P Or N
44 Selector Lever Position Cannot Be Detected By AEGS Control Unit.

Due to the high volume of no responses to posted questions, if you have not resolved your issue and you need further assistance, please respond.
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Thursday, February 11th, 2010 AT 8:40 PM
Tiny
JEFFNEHMAN
  • MEMBER
I have trans error code 42 on my '94 740iL. Not sure if that means the wiring harness is bad or not. Just bought this car used and it doesn't shift gears. It wouldn't start when we bought it but that was both a security issue AND a crank position sensor issue. Trying to figure out if maybe dry rot is the culprit or something else. The wires all look good though.
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Tuesday, September 22nd, 2015 AT 9:26 AM

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