Fig. 12.9. Location of automatic transmission control solenoid valves: 1 – electromagnetic valve for controlling the brake of 1st gear and reverse gear; 2 – electromagnetic valve for controlling the 4th gear clutch; 3 – electromagnetic valve for controlling the downshift clutch; 4 – 2nd gear brake control electromagnetic valve; 5 – electromagnetic valve for controlling the torque converter lock-up clutch
2. Disconnect the connectors of each solenoid valve (Fig. 12.9).
3. Measure the resistance between contacts 1 and 2 of the connector of each solenoid valve, which for all valves is 2.7–3.4 Ohm (at 20°C).
4. If the resistance is outside the nominal value, replace the solenoid valve.