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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 32, Fuel Enable Circuit (Circuit Shorted To Battery) >> Testing
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DTC 32, Fuel Enable Circuit (Circuit Shorted To Battery): Testing

  1. Turn ignition switch to OFF position. Disconnect CCM connector C1. Turn ignition switch to RUN position. Using DVOM, measure voltage between CCM connector C1 terminal B1 and ground. If voltage is greater than 5.5 volts, go to step 3). If voltage is less than 5.5 volts, go to next step.
  2. 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.
  3. Turn ignition switch to OFF position. Disconnect PCM connector C1. Turn ignition switch to RUN position. Using DVOM, measure voltage between PCM connector C1 terminal No. 25 and ground. If about battery voltage is present, repair short to battery in fuel enable circuit. If about battery voltage is not present, check for intermittent short to battery in fuel enable circuit. If circuit is okay, replace PCM.