Pic. 12.9. Location of solenoid valves for automatic transmission control: 1 - solenoid valve for controlling the brake of the 1st gear and reverse gear; 2 - solenoid valve for controlling the 4th gear clutch; 3 - solenoid valve for controlling the downshift clutch; 4 – the electromagnetic valve of management of a brake of 2nd transfer; 5 - solenoid valve for controlling the torque converter lock-up clutch
2. Disconnect the connectors of each solenoid valve (pic. 12.9).
3. Measure the resistance between pins 1 and 2 of each solenoid valve connector, which is 2.7-3.4 ohms for all valves (at 20°C).
4. If the resistance is out of specification, replace the solenoid valve.