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Home >> Isuzu >> 2000 >> Hombre S, 2.2 4, Standard >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Modules >> Self-Diagnostic System >> Scan Tool Inoperative
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Scan Tool Inoperative

  1. Check for battery voltage at DLC terminal No. 16 (Orange wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open, blown fuse or short to ground as necessary. See DATA LINK CONNECTORS article in WIRING DIAGRAMS. After repairs, go to BODY CONTROL MODULE (BCM) DIAGNOSTIC SYSTEM CHECK  .
  2. Check for open circuit between DLC terminal No. 4 (Black/White wire) and ground. If no problem is found, go to next step. If problem is found, repair open or high resistance between DLC and ground. After repairs, go to BODY CONTROL MODULE (BCM) DIAGNOSTIC SYSTEM CHECK  .
  3. Check for damage and poor connections on DLC terminals No. 4 and No. 16. If no problem is found, go to next step. If problem is found, repair as necessary. After repairs, go to BODY CONTROL MODULE (BCM) DIAGNOSTIC SYSTEM CHECK  .
  4. Check scan tool. Follow scan tool manufacturer's instructions. After repairs, go to BODY CONTROL MODULE (BCM) DIAGNOSTIC SYSTEM CHECK  .
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