Mike's Workshop Manuals
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Section 13 (Engine Controls - Tests W/Codes - 5.7L)
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ECM/Pcm Code Charts
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Code 47, Knock Sensor Module
Code 47, Knock Sensor Module
WARNING:
This page is about a different car, the 1994 Chevrolet Caprice and 1994 Buick Roadmaster. However, it is still accessible from the selected car via links, so may be relevant.
Knock sensor module is located inside PCM.
Fig 1: Code 47 Flow Chart (5.7L) Knock Sensor Module