Wiring Diagram Cluster
1991 BMW 850i Transmission Wiring Diagram
Find transmission control module wiring, shift solenoid circuits, speed sensor paths, and torque converter clutch schematics.
Matched Diagrams
48
Variant Used
850i (E31) V12-4988cc 5.0L SOHC (M70)
Total Vehicle Diagrams
1407
🤖 Stuck on this electrical issue?
Wiring diagrams can be a maze. Ask Manuel, our factory-trained AI mechanic, to analyze this circuit or troubleshoot your specific symptom.
From Diagram To Fix
Use this wiring page as the jump point, not the dead end
Open the exact diagram, then move directly into the vehicle hub, the repair most likely tied to this system, or the code cluster that usually shows up with it.
Keep context
Vehicle Repair Hub
Step out of raw diagrams and into the full 1991 BMW 850i hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →OEM source
Factory Manual Evidence
When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.
1991 BMW 850i A L L Diagnostic Trouble Codes ( DTC ) →Diagnostic signal
Codes Often Seen With This System
Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.
C0035: Left Front Wheel Speed Sensor Circuit →Top Transmission Diagram Paths
1.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component ID (General List) > Part 1 ATransmission and DrivetrainOpen2.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component ID (General List) > Part 2 BTransmission and DrivetrainOpen3.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component ID (General List) > Part 3 C-GTransmission and DrivetrainOpen4.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component ID (General List) > Part 4 H-MTransmission and DrivetrainOpen5.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component ID (General List) > Part 5 N-ZTransmission and DrivetrainOpen6.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Component LocationsTransmission and DrivetrainOpen7.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Components ViewsTransmission and DrivetrainOpen8.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X1001 Thru X9403Transmission and DrivetrainOpen9.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X10039 Thru X18246Transmission and DrivetrainOpen10.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X252 Thru X424Transmission and DrivetrainOpen11.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X501 Thru X695Transmission and DrivetrainOpen12.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X7 Thru X161Transmission and DrivetrainOpen13.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X701 Thru X980Transmission and DrivetrainOpen14.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Data Link Connector (Diagnostic Connector)Transmission and DrivetrainOpen15.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Fuse and Fusible Links > Front (LH Rear of Engine Compartment)Transmission and DrivetrainOpen16.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Fuse and Fusible Links > Rear (LH Side of Luggage Compartment)Transmission and DrivetrainOpen17.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > GroundsTransmission and DrivetrainOpen18.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Splices > LocationsTransmission and DrivetrainOpen19.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Splices > Views > Chassis HarnessTransmission and DrivetrainOpen20.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Splices > Views > Front HarnessTransmission and DrivetrainOpen21.Automatic Transmission/Transaxle — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Splices > Views > Rear HarnessTransmission and DrivetrainOpen22.Automatic Transmission/Transaxle — Diagram Information and Instructions > Symbol Identification and Diagram InformationTransmission and DrivetrainOpen23.Automatic Transmission/Transaxle — Diagram Information and Instructions > Wire Color Code IdentificationTransmission and DrivetrainOpen24.Automatic Transmission/Transaxle — Electrical DiagramsTransmission and DrivetrainOpen25.Automatic Transmission/Transaxle — Exploded ViewsTransmission and DrivetrainOpen26.Automatic Transmission/Transaxle — Mechanical Diagrams > ZF 4HP22 / H + EH Closed Shift ElementsTransmission and DrivetrainOpen27.Automatic Transmission/Transaxle — Mechanical Diagrams > ZF 4HP22/24 Layout DrawingTransmission and DrivetrainOpen28.Automatic Transmission/Transaxle — Mechanical Diagrams > ZF 4HP22/24 Power Flow DiagramsTransmission and DrivetrainOpen29.Automatic Transmission/Transaxle — Mechanical Diagrams > ZF 4HP22/24 Transmission LayoutTransmission and DrivetrainOpen30.Transmission Control Systems — Diagram Information and Instructions > Component ID (General List) > Part 1 ATransmission and DrivetrainOpen31.Transmission Control Systems — Diagram Information and Instructions > Component ID (General List) > Part 2 BTransmission and DrivetrainOpen32.Transmission Control Systems — Diagram Information and Instructions > Component ID (General List) > Part 3 C-GTransmission and DrivetrainOpen33.Transmission Control Systems — Diagram Information and Instructions > Component ID (General List) > Part 4 H-MTransmission and DrivetrainOpen34.Transmission Control Systems — Diagram Information and Instructions > Component ID (General List) > Part 5 N-ZTransmission and DrivetrainOpen35.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Component LocationsTransmission and DrivetrainOpen36.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Components ViewsTransmission and DrivetrainOpen37.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X1001 Thru X9403Transmission and DrivetrainOpen38.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X10039 Thru X18246Transmission and DrivetrainOpen39.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X252 Thru X424Transmission and DrivetrainOpen40.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X501 Thru X695Transmission and DrivetrainOpen41.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X7 Thru X161Transmission and DrivetrainOpen42.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Connector Locations > X701 Thru X980Transmission and DrivetrainOpen43.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Connectors > Data Link Connector (Diagnostic Connector)Transmission and DrivetrainOpen44.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Fuse and Fusible Links > Front (LH Rear of Engine Compartment)Transmission and DrivetrainOpen45.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Fuse and Fusible Links > Rear (LH Side of Luggage Compartment)Transmission and DrivetrainOpen46.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > GroundsTransmission and DrivetrainOpen47.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Splices > LocationsTransmission and DrivetrainOpen48.Transmission Control Systems — Diagram Information and Instructions > Component, Connector, Splice, Fuse and Ground Locations > Splices > Views > Chassis HarnessTransmission and DrivetrainOpen
Parts & Tools for This Job
Common parts shoppers buy for 1991 BMW 850i Transmission.
As an Amazon Associate, AllOEMManuals earns from qualifying purchases. Prices and availability may vary.
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1991 BMW 850i A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1991 BMW 850i (E31) V12-4988cc 5.0L SOHC (M70) Service Manual ~ LEMON Manuals LEMON Manuals: Repai...
1991 BMW 850i Am/Fm Radio Reception Problems - Radio/Antenna Diagnosis (65 01 04)OEM Manual
Am/Fm Radio Reception Problems - Radio/Antenna Diagnosis (65 01 04) — 1991 BMW 850i Automatic Service Manual ~ LEMON Manuals LEMON Manuals:...
1991 BMW 850i Am/Fm Radio Reception Problems - Radio/Antenna Diagnosis (65 01 04)OEM Manual
Am/Fm Radio Reception Problems - Radio/Antenna Diagnosis (65 01 04) — 1991 BMW 850i Standard Service Manual ~ LEMON Manuals LEMON Manuals:...
1991 BMW 850i Anti-Theft Labels - Update (00 21 86 (1267))OEM Manual
Anti-Theft Labels - Update (00 21 86 (1267)) — 1991 BMW 850i Automatic Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reima...
Likely Trouble Codes for This System
Browse →C0035: Left Front Wheel Speed Sensor CircuitCode
Chassis/Brakes code commonly seen during transmission diagnosis.
C0040: Right Front Wheel Speed Sensor CircuitCode
Chassis/Brakes code commonly seen during transmission diagnosis.
C0050: Right Rear Wheel Speed Sensor CircuitCode
Chassis/Brakes code commonly seen during transmission diagnosis.
C0236: Rear Wheel Speed Sensor Signal ErraticCode
Chassis/Brakes code commonly seen during transmission diagnosis.
P0500: Vehicle Speed Sensor ACode
Transmission code commonly seen during transmission diagnosis.
P0715: Input/Turbine Speed Sensor CircuitCode
Transmission code commonly seen during transmission diagnosis.
More 850i Wiring Pages
Same System, Other Vehicles
1991 Toyota Supra Transmission Wiring Diagram1994 Toyota Celica Transmission Wiring Diagram1995 Toyota Celica Liftback Transmission Wiring Diagram1990 Honda Prelude Transmission Wiring Diagram1993 Honda Accord Transmission Wiring Diagram1997 Toyota Supra Liftback Transmission Wiring Diagram1991 Ford Thunderbird Transmission Wiring Diagram1992 Ford Crown Victoria Transmission Wiring Diagram
Factory Service Tools
Turn This Into a Confident Next Step
Verify the likely fault first, then compare a quote before you approve expensive work.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.