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Home >> Saturn >> 2000 >> SW2 Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Body Control Modules) >> Self-Diagnostic System >> Scan Tool Does Not Power Up
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Scan Tool Does Not Power Up

WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure voltage at Data Link Connector (DLC) terminal No. 16 (Orange wire). See Figure. If battery voltage is present, go to next step. If battery voltage is not present, repair open or short to ground in Orange wire. After repairs, recheck scan tool operation.
  2. Check continuity between DLC terminal No. 4 (Black wire) and ground. If continuity exists, go to next step. If continuity does not exist, repair Black wire as necessary and recheck scan tool operation.
  3. Check for poor connections between scan tool and DLC terminals No. 4 and No. 16. If connections are okay, go to next step. If poor connections are found, repair as necessary and recheck scan tool operation.
  4. Scan tool may be malfunctioning. Check scan tool manual for diagnostic procedures. After repairs, recheck operation of scan tool.
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