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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 799 (Battery) >> Diagnostic Information and Procedure >> DTC P1637 >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC P1637 Diagnostic Table
G01646472Courtesy of GENERAL MOTORS CORP.
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