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Code 26, Quad-Driver Circuit 3.8L (3 Of 3)

NOTE: Test number refers to number on diagnostic chart.
  1. 3)  This determines if problem is circuit or component. Factory-installed PCM has an internal fuse and is unlikely to need replacement.
Fig 1: Code 26, Flow Chart, Quad-Driver Circuit 3.8L (3 of 3)
G91J07317Courtesy of GENERAL MOTORS CORP.