A/T Control Relay Check

Remove the control relay.

Fig 1: Removing Control Relay
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Use jumper wires to connect A/T control relay terminal 3 to the negative battery terminal and terminal 2 to the positive battery terminal.
Check for continuity between A/T control relay terminals 1 and 4 when the jumper wires are connected to and disconnected from the battery.

Fig 2: Identifying Jumper Wires To Connect A/T Control Relay Terminal
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 3: Relay Continuity Chart
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
If there is any problem with the A/T control relay, replace it.