Lock-up control Solenoid Valve A/B

Test

NOTE: Lock-up control solenoid valves A and B must be removed/replaced as an assembly.

1. Disconnect the connector from the lock-up control solenoid valve A/B.

2. Measure the resistance between the No. 1 terminal (SOL. V A) of the lock-up control solenoid valve connector and body ground and between the No. 2 terminal (SOL. V B) and body ground.

STANDARD: 14.1-15.5 0 (at 25°C)

3. Replace the lock-up control solenoid valve assembly if the resistance is out of specification.

4. Connect the No. 1 terminal of the lock-up control solenoid valve connector to the battery positive terminal and body ground. A clicking sound should be heard. Connect the No. 2 terminal to the battery positive terminal and body ground. A clicking sound should be heard.

5. If not, check for continuity between the ECU Al 9 or A17 harness and body ground (page 11-76).
6. Replace the lock-up control solenoid valve assembly if there is continuity between the ECU Al 9 or Al 7 harness and body ground (page 11-76).

Replacement

1. Remove the mounting bolts and lock-up control solenoid valve assembly.

NOTE: Be sure to remove or replace the lock-up control solenoid valves A and B as an assembly.

2. Check the lock-up control solenoid valve oil passages for dust or dirt and replace as an assembly, if necessary.

3. Clean the mounting surface and oil passages of the lock-up control solenoid valve assembly and install a new base gasket.

4. Check the connector for rust, dirt or oil and reconnect it securely.