Solenoids Component Test
NOTE:
Lock-up solenoid terminal SL, may also be referred to as solenoid No. 3 (SOL 3) terminal.
- Access ECT ECU. See Figure-Figure . Ensure ignition is off. Disconnect ECT ECU harness connector. Using ohmmeter, measure resistance between SL, S1 and S2 terminal and ground for appropriate proper solenoid. See Figure.
- Replace solenoid if resistance is not 11-15 ohms. To check solenoid operation, apply battery voltage to SL, S1 or S2 terminal of ECT ECU connector for appropriate solenoid. Ensure operating sound can be heard when battery voltage is connected. Replace solenoid if operating sound cannot be heard.
- To check solenoid seals, remove suspect solenoid. Connect battery voltage to solenoid. Apply 71 psi (5 kg/cm2 ) to solenoid with battery voltage connected. See Fig 1.
- With battery voltage applied, air should pass through solenoid No. 1 and 2 solenoids. Disconnect voltage to solenoid. Ensure air does not pass through solenoid. Replace solenoid if defective.
- With battery voltage applied, air should not pass through lock-up solenoid. Disconnect voltage to solenoid. Ensure air passes through solenoid. Replace solenoid if defective.