Main Toyota automatic transmission solenoids and their resistance:
| Solenoid | Cold Resistance (Ohm) | Hot Resistance (Ohms) |
|—|—|—|
| Torque converter lock-up solenoid | 10-20 | 18-28 |
| 1st-2nd gear shift solenoid | 50-70 | 65-85 |
| 2nd-3rd gear shift solenoid | 40-60 | 55-75 |
| 3rd-4th gear shift solenoid | 30-50 | 45-65 |
| 4th-5th gear shift solenoid | 20-40 | 35-55 |
Note:
*Resistance may vary slightly depending on vehicle model and year.
*Always check your specific vehicle’s repair manual for exact values.
* Resistance measurements should be carried out with the solenoids removed from the automatic transmission.