LEMON Manuals
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LS 3.9 A
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Navigation System
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Pinpoint Test B: No Communication With The Navigation System Module
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Possible Causes
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Possible Causes
circuit 30-GK8 (RD/BK) open or shorted to ground
circuit 10-GK8 (GY/BK) open or shorted to ground
circuit 31-GK8 (BK/RD) open
navigation system module
Fig 1: Pinpoint Test B: No Communication With Navigation System Module (Step B1-B3)
Courtesy of FORD MOTOR CO.