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NOTE: Ensure ignition is off when taking resistance measurements. ECM is located under driver's seat. For ECM connector terminal identification, see illustration. See Figure.
CAUTION: Use Breakout Box (9616) when checking ECM terminals. See Fig 1. DO NOT directly probe ECM terminals. Breakout box pin numbers match ECM terminal numbers.
Fig 1: Identifying Breakout Box (9616)
G98A12641Courtesy of PORSCHE OF NORTH AMERICA, INC.