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Diagnostic Aids

Problem is intermittent at this time. Check all terminals, connections and harness for possible loose or corroded condition. The PCM is protected from damage by internal circuit design.

SELECTOR SWITCH POSITION (CODE 46)

Gear Selected	Selector Switch Terminals
"P"	"A" & "D"
"R"	"A" & "B"
"N"	"B" & "D"
"D4"	"B" & "C"
"D3"	"C" & "D"
"D2"	"A" & "C"

Fig 1: Code 46 Troubleshooting Diagnostic Diagram

Courtesy of GENERAL MOTORS CORP.