Wiring Diagram Cluster
1990 Buick Regal Transmission Wiring Diagram
Find transmission control module wiring, shift solenoid circuits, speed sensor paths, and torque converter clutch schematics.
Matched Diagrams
48
Variant Used
Regal V6-191 3.1L
Total Vehicle Diagrams
648
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.
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Vehicle Repair Hub
Step out of raw diagrams and into the full 1990 Buick Regal hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →Likely fix path
Exact Repair Guides
These repair flows most often intersect with transmission diagnosis on this exact vehicle.
Transmission Fluid Change →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 — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Detent Downshifts (Valves In Second Gear Position)Transmission and DrivetrainOpen2.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Drive Range > Drive Range - First GearTransmission and DrivetrainOpen3.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Drive Range > Drive Range - Second GearTransmission and DrivetrainOpen4.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Drive Range > Drive Range - Third Gear > Drive Range-Third Gear (TCC Applied)Transmission and DrivetrainOpen5.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Drive Range > Drive Range - Third Gear > Drive Range-Third Gear (TCC Released)Transmission and DrivetrainOpen6.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Part Throttle 3-2 Downshift (Valves In Second Gear Position)Transmission and DrivetrainOpen7.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > 3-2 Detent Downshift (Valves Shown In Second Gear Position)Transmission and DrivetrainOpen8.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-First GearTransmission and DrivetrainOpen9.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-Fourth GearTransmission and DrivetrainOpen10.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-Second GearTransmission and DrivetrainOpen11.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-Third GearTransmission and DrivetrainOpen12.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > 3-2 Detent Downshift (Valves Shown In Second Gear)Transmission and DrivetrainOpen13.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-First GearTransmission and DrivetrainOpen14.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-Fourth GearTransmission and DrivetrainOpen15.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-Second GearTransmission and DrivetrainOpen16.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-Third GearTransmission and DrivetrainOpen17.Automatic Transmission/Transaxle — Diagnostic Aids > Pull-to-Seat ConnectorsTransmission and DrivetrainOpen18.Automatic Transmission/Transaxle — Diagnostic Aids > Push-to-Seat ConnectorsTransmission and DrivetrainOpen19.Automatic Transmission/Transaxle — Diagram Information and Instructions > Cell ReferencesTransmission and DrivetrainOpen20.Automatic Transmission/Transaxle — Diagram Information and Instructions > Schematic SymbolsTransmission and DrivetrainOpen21.Automatic Transmission/Transaxle — Diagram Information and Instructions > Symbol IdentificationTransmission and DrivetrainOpen22.Automatic Transmission/Transaxle — Diagram Information and Instructions > Wire Color Code IdentificationTransmission and DrivetrainOpen23.Automatic Transmission/Transaxle — Electrical DiagramsTransmission and DrivetrainOpen24.Automatic Transmission/Transaxle — Exploded Views > 1-2 & Reverse Servo AssembliesTransmission and DrivetrainOpen25.Automatic Transmission/Transaxle — Exploded Views > 4TH Clutch & ComponentsTransmission and DrivetrainOpen26.Automatic Transmission/Transaxle — Exploded Views > Accumulator Cover & Governor PipesTransmission and DrivetrainOpen27.Automatic Transmission/Transaxle — Exploded Views > Channel Plate (Case Side)Transmission and DrivetrainOpen28.Automatic Transmission/Transaxle — Exploded Views > Control Valve AssemblyTransmission and DrivetrainOpen29.Automatic Transmission/Transaxle — Exploded Views > Driven Sprocket SupportTransmission and DrivetrainOpen30.Automatic Transmission/Transaxle — Exploded Views > Final Drive AssemblyTransmission and DrivetrainOpen31.Automatic Transmission/Transaxle — Exploded Views > Input & Reaction CarriersTransmission and DrivetrainOpen32.Automatic Transmission/Transaxle — Exploded Views > Input Clutch AssemblyTransmission and DrivetrainOpen33.Automatic Transmission/Transaxle — Exploded Views > Internal ComponentsTransmission and DrivetrainOpen34.Automatic Transmission/Transaxle — Exploded Views > Manual LinkageTransmission and DrivetrainOpen35.Automatic Transmission/Transaxle — Exploded Views > Oil Pump AssemblyTransmission and DrivetrainOpen36.Automatic Transmission/Transaxle — Exploded Views > Servo Pipe AssemblyTransmission and DrivetrainOpen37.Automatic Transmission/Transaxle — Exploded Views > Sprag & Roller Clutch AssemblyTransmission and DrivetrainOpen38.Automatic Transmission/Transaxle — Exploded Views > Transaxle Case & ComponentsTransmission and DrivetrainOpen39.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Manual LOTransmission and DrivetrainOpen40.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Neutral - Engine RunningTransmission and DrivetrainOpen41.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > Park - Engine RunningTransmission and DrivetrainOpen42.Automatic Transmission/Transaxle — Fluid Diagrams > 3T40 (125/125C) Automatic Transaxle > ReverseTransmission and DrivetrainOpen43.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-Converter Clutch AppliedTransmission and DrivetrainOpen44.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Manual LOTransmission and DrivetrainOpen45.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Manual SecondTransmission and DrivetrainOpen46.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Manual ThirdTransmission and DrivetrainOpen47.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Park - Engine RunningTransmission and DrivetrainOpen48.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Part Throttle 4-3Transmission and DrivetrainOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1990 Buick Regal A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Buick Regal V6-191 3.1L Service Manual | Operation CHARM Operation CHARM : Car repair manuals...
1990 Buick Regal A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Buick Regal V6-231 3.8L VIN L SFI Service Manual | Operation CHARM Operation CHARM : Car repa...
1990 Buick Regal How to Find Technical Service Bulletins by Category/SymptomOEM Manual
How to Find Technical Service Bulletins by Category/Symptom — 1990 Buick Regal V6-231 3.8L VIN L SFI Service Manual | Operation CHARM Opera...
1990 Buick Regal How to Find Technical Service Bulletins by Category/SymptomOEM Manual
How to Find Technical Service Bulletins by Category/Symptom — 1990 Buick Regal V6-191 3.1L Service Manual | Operation CHARM Operation CHARM...
Repairs That Intersect This Wiring
Browse →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.
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