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Home >> Cadillac >> 1996 >> Fleetwood Base >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Central Control Module >> Diagnosing & Repairing CCM DTCS >> DTC 22, DIL Enable Circuit (Circuit Shorted To Battery) >> Testing
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DTC 22, DIL Enable Circuit (Circuit Shorted To Battery): Testing

  1. Turn ignition switch to OFF position. Remove DIL relay. Disconnect CCM connector C1. Turn ignition switch to RUN position. Using DVOM, measure voltage between DIL relay connector terminal C6 and ground. If battery voltage is present, repair short to battery in delayed interior lights enable circuit. If battery voltage is not present, go to next step.
  2. Using DVOM, measure resistance between DIL relay terminals C6 and B4. Resistance should be 70-150 ohms. If resistance is not as specified, replace relay. If resistance is as specified, go to next step.
  3. Turn ignition off. Using DVOM, check for continuity between DIL relay terminals C6 and B6. If continuity is present, replace relay. If continuity is not present, go to next step.
  4. Turn ignition switch to OFF position. Check for poor connections at CCM connector. If connections are okay, reconnect CCM connector and all other components. Clear DTCs and check if DTC resets. If DTC resets, replace CCM. If DTC does not reset, problem may be intermittent. Try to recreate fault while performing test by wiggling wiring and connectors. Check for poor connections at all connectors that may be causing intermittent condition.
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