Transmission Control System Relay: Testing and Inspection

EATX Relay Check:

1. Remove the EATX relay.
2. Check the continuity between the EATX relay terminals 4 and 6.
3. Use jumper leads to connect EATX relay terminal 4 to the battery (+) terminal and terminal 6 to the battery (-) terminal.
4. Check the continuity between EATX relay terminals 2 and 8 while connecting and disconnecting the jumper lead at the battery (-) terminal.
- Connected = Continuity
- Disconnected = Open circuit
5. If there is a defect, replace the EATX relay.