Wiring Diagram Cluster
1991 Cadillac DeVille Transmission Wiring Diagram
Find transmission control module wiring, shift solenoid circuits, speed sensor paths, and torque converter clutch schematics.
Matched Diagrams
48
Variant Used
DeVille V8-300 4.9L
Total Vehicle Diagrams
1330
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 1991 Cadillac DeVille hub with repairs, specs, codes, and other systems already tied to this car.
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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 Cadillac DeVille How to Find Technical Service Bulletins by Category/Symptom →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 > 440-T4 Automatic Transaxle > 3-2 Detent Downshift (Valves Shown In Second Gear Position)Transmission and DrivetrainOpen2.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-First GearTransmission and DrivetrainOpen3.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-Fourth GearTransmission and DrivetrainOpen4.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-Second GearTransmission and DrivetrainOpen5.Automatic Transmission/Transaxle — Fluid Diagrams > 440-T4 Automatic Transaxle > Drive Range > Drive Range-Third GearTransmission and DrivetrainOpen6.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > 3-2 Detent Downshift (Valves Shown In Second Gear)Transmission and DrivetrainOpen7.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-First GearTransmission and DrivetrainOpen8.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-Fourth GearTransmission and DrivetrainOpen9.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-Second GearTransmission and DrivetrainOpen10.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60 Automatic Transaxle > Drive Range > Drive Range-Third GearTransmission and DrivetrainOpen11.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60-E Automatic Transaxle > Drive Range - Manual Second (From Drive Range Third Gear)Transmission and DrivetrainOpen12.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60-E Automatic Transaxle > Drive Range - Manual Third (From Overdrive Range Fourth Gear)Transmission and DrivetrainOpen13.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60-E Automatic Transaxle > Overdrive Range > Overdrive Range - First GearTransmission and DrivetrainOpen14.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60-E Automatic Transaxle > Overdrive Range > Overdrive Range - Fourth Gear (Converter Clutch Applied)Transmission and DrivetrainOpen15.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60-E Automatic Transaxle > Overdrive Range > Overdrive Range - Second GearTransmission and DrivetrainOpen16.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60-E Automatic Transaxle > Overdrive Range > Overdrive Range - Third Gear > Converter Clutch AppliedTransmission and DrivetrainOpen17.Automatic Transmission/Transaxle — Fluid Diagrams > 4T60-E Automatic Transaxle > Overdrive Range > Overdrive Range - Third Gear > Converter Clutch ReleasedTransmission and DrivetrainOpen18.Automatic Transmission/Transaxle — Diagnostic Aids > Tech TipsTransmission and DrivetrainOpen19.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Circuit Protection DevicesTransmission and DrivetrainOpen20.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Connector Repair > General InformationTransmission and DrivetrainOpen21.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Connector Repair > Pull-to-Seat ConnectorsTransmission and DrivetrainOpen22.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Connector Repair > Push-to-Seat ConnectorsTransmission and DrivetrainOpen23.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Connector Repair > Weather Pack(R) ConnectorsTransmission and DrivetrainOpen24.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Diode ReplacementTransmission and DrivetrainOpen25.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > General InformationTransmission and DrivetrainOpen26.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Repairing Short Circuits Caused By Damaged WireTransmission and DrivetrainOpen27.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Splicing Copper Wire Using Crimp and Seal Splice SleevesTransmission and DrivetrainOpen28.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Splicing Copper Wire Using Splice ClipsTransmission and DrivetrainOpen29.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Splicing Twisted/Shielded CableTransmission and DrivetrainOpen30.Automatic Transmission/Transaxle — Diagnostic Aids > Typical Electrical Repair Procedures > Terminal RepairsTransmission and DrivetrainOpen31.Automatic Transmission/Transaxle — Diagram Information and Instructions > Cell ReferencesTransmission and DrivetrainOpen32.Automatic Transmission/Transaxle — Diagram Information and Instructions > Commonly Used AbbreviationsTransmission and DrivetrainOpen33.Automatic Transmission/Transaxle — Diagram Information and Instructions > Schematic SymbolsTransmission and DrivetrainOpen34.Automatic Transmission/Transaxle — Diagram Information and Instructions > Wire Color Code IdentificationTransmission and DrivetrainOpen35.Automatic Transmission/Transaxle — Diagram Information and Instructions > Wire Size Conversion TableTransmission and DrivetrainOpen36.Automatic Transmission/Transaxle — Electrical DiagramsTransmission and DrivetrainOpen37.Automatic Transmission/Transaxle — Exploded Views > 4TH Clutch & ComponentsTransmission and DrivetrainOpen38.Automatic Transmission/Transaxle — Exploded Views > Channel Plate (Case Side)Transmission and DrivetrainOpen39.Automatic Transmission/Transaxle — Exploded Views > Control Valve AssemblyTransmission and DrivetrainOpen40.Automatic Transmission/Transaxle — Exploded Views > Driven Sprocket SupportTransmission and DrivetrainOpen41.Automatic Transmission/Transaxle — Exploded Views > Final Drive AssemblyTransmission and DrivetrainOpen42.Automatic Transmission/Transaxle — Exploded Views > Forward Servo AssemblyTransmission and DrivetrainOpen43.Automatic Transmission/Transaxle — Exploded Views > Input & Reaction CarriersTransmission and DrivetrainOpen44.Automatic Transmission/Transaxle — Exploded Views > Input Clutch AssemblyTransmission and DrivetrainOpen45.Automatic Transmission/Transaxle — Exploded Views > Internal ComponentsTransmission and DrivetrainOpen46.Automatic Transmission/Transaxle — Exploded Views > Manual LinkageTransmission and DrivetrainOpen47.Automatic Transmission/Transaxle — Exploded Views > Oil Pump AssemblyTransmission and DrivetrainOpen48.Automatic Transmission/Transaxle — Exploded Views > Reverse Servo AssemblyTransmission and DrivetrainOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1991 Cadillac DeVille How to Find Technical Service Bulletins by Category/SymptomOEM Manual
How to Find Technical Service Bulletins by Category/Symptom — 1991 Cadillac DeVille V8-300 4.9L Service Manual | Operation CHARM Operation...
1991 Cadillac DeVille How to Find Technical Service Bulletins by Category/SymptomOEM Manual
How to Find Technical Service Bulletins by Category/Symptom — 1991 Cadillac Allante V8-273 4.5L Service Manual | Operation CHARM Operation...
1991 Cadillac DeVille How to Find Technical Service Bulletins by Category/SymptomOEM Manual
How to Find Technical Service Bulletins by Category/Symptom — 1991 Cadillac Eldorado V8-300 4.9L Service Manual | Operation CHARM Operation...
1991 Cadillac DeVille How to Find Technical Service Bulletins by Category/SymptomOEM Manual
How to Find Technical Service Bulletins by Category/Symptom — 1991 Cadillac Seville V8-300 4.9L Service Manual | Operation CHARM Operation...
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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