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Home >> Mitsubishi >> 2005 >> Galant LS >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Diagnosis >> On-Vehicle Service >> Automatic Transaxle Control Component Check >> A/T Control Relay Check
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A/T Control Relay Check

  1. Remove the A/T control relay.
    Fig 1: Removing A/T Control Relay
    G02394729Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. Use jumper wires to connect A/T control relay terminal 3 to the negative battery terminal and terminal 2 to the positive battery terminal.
  3. 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: Checking Continuity Between A/T Control Relay Terminals 1 And 4
    G02394730Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    A/T CONTROL RELAY CONTINUITY CHART

    JUMPER WIRE CONTINUITY BETWEEN TERMINALS NO.1 AND NO.4
    Connected Continuity
    Disconnected No continuity
  4. If there is any problem with the A/T control relay, replace it.
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