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Chevrolet
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2003
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Impala Base, 3.4 E
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Repair and Diagnosis
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Different variant/trim
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Section 2 (Engine Control System Self-Diagnostics - 3.8L)
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Diagnostic Tests
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DTC P1640: Output Driver Module Circuit No. 1
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Conditions For Running DTC
Conditions For Running DTC
WARNING:
This page is about a different variant/trim than selected.
Ignition is on.