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.
Pressure Switch Assembly
Install Jumper Harness (J39775) to transmission 20-pin connector. Compare resistance of pressure switches with gear selector in each position to known values. See Fig 2 . If resistance values are the same as chart, problem is intermittent. If resistance values are not the same, complete chart until problem is found.
| Component | Ohms | |
|---|---|---|
| Pressure Control Solenoid | 3-7 | |
| TCC PWM Solenoid | 10-15 | |
| TCC Solenoid | 21-33 | |
| 1-2 & 2-3 Shift Solenoids | 19-31 | |
| 3-2 Control Solenoid | 20-32 | |
| TFT Sensor | ||
| At 68°F (20°C) | 3088-3942 | |
| At 212°F (100°C) | 159-198 | |
| Vehicle Speed Sensor | ||
| At 68°F (20°C) | 1480-2220 | |
| At 212°F (100°C) | 1800-2700 | |
NO RELATED
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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.