"U-Check", "Read Memory" and "D-Check" are entered by connecting and/or disconnecting the read memory and test mode connectors as required. See Fig 3
or Fig 4
. See RELATIONSHIP BETWEEN MODES AND CONNECTORS table.
Fig 1: Location Of O2 Monitor (Except XT)
Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Location Of O2 Monitor (XT)
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Fig 3: Location Of Read Memory & Test Mode Connectors (Except XT)
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Fig 4: Location Of Read Memory & Test Mode Connectors (XT)