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Home >> Pontiac >> 2003 >> Grand Prix GTP >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Data Link Communication System) >> Diagnostic Information and Procedures >> Scan Tool Does Not Power Up >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 4.  If the battery positive voltage and ground circuits of the DLC are functioning properly. The malfunction must be due to the scan tool.
Fig 1: Scan Tool Does Not Power Up Diagnostic Table
G01754708Courtesy of GENERAL MOTORS CORP.
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