Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC1997GRAND PRIX GTP, 4D SEDANREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSAXLE DIAGNOSIS - 4T65-E
1997 Pontiac Grand Prix GTP, 4D Sedan
Automatic Transaxle Diagnosis - 4T65-E
1997 Pontiac Grand Prix GTP, 4D SedanSECTION Automatic Transaxle Diagnosis - 4T65-E
- Transmission Application
- Description
- Operation
- Troubleshooting
- Electronic Self-Diagnostics
- Diagnostic Tests
- Introduction
- DTC P0218: Transaxle Fluid OVERTEMPERATURE
- DTC P0502: Vehicle Speed Sensor (VSS) Circuit (Low Input)
- DTC P0503: Vehicle Speed Sensor (VSS) Circuit Performance Problem
- DTC P0560: System Voltage Malfunction (1997 Models Only)
- DTC P0711: Trans. Fluid Temperature (TFT) Sensor Circuit Performance Problem
- DTC P0712: Trans. Fluid Temperature (TFT) Sensor Circuit (Low Input)
- DTC P0713: Trans. Fluid Temperature (TFT) Sensor Circuit (High Input)
- DTC P0716: Input Speed Sensor (ISS) Circuit Performance Problem
- DTC P0717: Input Speed Sensor (ISS) Circuit No Signal
- DTC P0719: TCC Brake Switch Circuit Low Input (Switch Stuck On)
- DTC P0724: TCC Brake Switch Circuit High Input (Switch Stuck Off)
- DTC P0730: Incorrect Gear Ratio
- DTC P0741: TCC System Stuck Off
- DTC P0742: TCC System Stuck On
- DTC P0748: Pressure Control Solenoid Electrical Problem
- DTC P0751: 1-2 Shift Solenoid Performance Problem
- DTC P0753: 1-2 Shift Solenoid Electrical Problem
- DTC P0756: 2-3 Shift Solenoid Performance Problem
- DTC P0758: 2-3 Shift Solenoid Electrical Problem
- DTC P1810: Transaxle Fluid Pressure (TFP) Position Switch Malfunction
- DTC P1811: Maximum Adapt & Long Shift
- DTC P1860: TCC Pulse Width Modulated (PWM) Solenoid Electrical Problem
- DTC P1887: Torque Converter Clutch (TCC) Release Switch Circuit Malfunction
- Component Tests
- Connector Identification
- Wiring Diagrams
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.