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Test 15: Trouble Code Circuit

  1. Locate DLC1. Connect voltmeter positive lead to terminal No. Tc and negative lead to terminal E1. See Figure. Turn ignition on and ensure battery voltage exists between terminals of each DLC. If voltage is as specified, go to test for next trouble code displayed or appropriate TROUBLE SHOOTING BY SYMPTOM .
  2. If battery voltage is not present, ensure no short or open exists in harness or connectors between CC ECU and DLC or between DLC and ground. If harness and connectors are okay, replace CC ECU and retest system. If harness and connectors are not okay, repair as necessary and retest system.
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