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Any Key Cylinder Disarm Inoperative (Durango)

  1. Insert key into driver's door key cylinder and turn key between neutral, lock and unlock several times. Repeat for passenger's door lock cylinder and liftgate door lock cylinder. If binding or sticking condition exists at any door key cylinder, repair or replace door key cylinder as necessary. If all door lock cylinder's are okay, go to next step.
  2. Disconnect driver's door key cylinder lock switch harness connector. Using DVOM, measure resistance between ground and door key cylinder switch connector Black/Light Green wire terminal. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, locate and repair open in Black/Light Green wire. Perform BODY VERIFICATION TEST  .
  3. Disconnect liftgate door key cylinder lock switch harness connector. Measure resistance between ground and door key cylinder switch connector Black/Light Green wire terminal. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, locate and repair open in Black/Light Green wire. Perform BODY VERIFICATION TEST  .
  4. Disconnect passenger's door key cylinder lock switch harness connector. Measure resistance between ground and passenger's door key cylinder switch connector Black/Light Green wire terminal. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, locate and repair open in Black/Light Green wire. Perform BODY VERIFICATION TEST  .
  5. Disconnect CTM harness connector C2. With all door key cylinder lock switch connectors disconnected, measure resistance of Light Green/Orange wire between CTM connector C2 terminal No. 10 and driver's door key cylinder harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, locate and repair open in Light Green/Orange wire. Perform BODY VERIFICATION TEST  .
  6. Measure resistance of Light Green/Orange wire between CTM connector C2 terminal No. 10 and liftgate door key cylinder harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, locate and repair open in Light Green/Orange wire. Perform BODY VERIFICATION TEST  .
  7. Measure resistance between ground and liftgate door key cylinder harness connector Light Green/Orange wire terminal. If resistance is less than 1000 ohms, locate and repair short to ground in Light Green/Orange wire. Perform BODY VERIFICATION TEST  . If resistance is 5 ohms or more, go to next step.
  8. Measure resistance of Light Green/Orange wire between CTM connector terminal No. 10 and passenger's door key cylinder harness connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, locate and repair open in Light Green/Orange wire. Perform BODY VERIFICATION TEST  .
  9. Turn ignition switch to ON position. Measure voltage in Light Green/Orange wire. If reading is more than one volt, repair short to voltage in Light Green/Orange wire as necessary. Perform BODY VERIFICATION TEST  . If reading is less than one volt, go to next step.
  10. Turn ignition switch to OFF position. Connect CTM connector C2. Turn ignition switch to ON position. Measure voltage in Light Green/Orange wire. If reading is 8-11 volts, go to next step. If reading is not 8-11 volts, replace CTM. Perform BODY VERIFICATION TEST  .
    NOTE: Two ignition switch keys are required for following test procedures.
  11. Turn ignition switch to OFF position. Connect all previously disconnected components. Turn ignition switch to On position. Using scan tool, monitor cylinder lock switch while turning driver's door lock cylinder switch from neutral to unlock positions. If reading changes from 2.5 volts in neutral position to one volt in unlocked position, go to next step. If reading does not change from 2.5 volts in neutral to one volt in unlocked position, replace driver's door key cylinder lock switch. Perform BODY VERIFICATION TEST  .
  12. Monitor cylinder lock switch while turning liftgate door lock cylinder switch from neutral to unlock positions. If reading changes from 2.5 volts in neutral position to one volt in unlocked position, go to next step. If reading does not change from 2.5 volts in neutral to one volt in unlocked position, replace liftgate door key cylinder lock switch. Perform BODY VERIFICATION TEST  .
  13. Monitor cylinder lock switch while turning passenger's door lock cylinder switch from neutral to unlock positions. If reading changes from 2.5 volts in neutral position to one volt in unlocked position, go to next step. If reading does not change from 2.5 volts in neutral to one volt in unlocked position, replace passenger's door key lock cylinder switch. Perform BODY VERIFICATION TEST  .
  14. Turn ignition switch to OFF position. Fault is not present at this time. Retest system. If fault remains, see appropriate procedure for symptoms present. See SYMPTOMS INDEX DIRECTORY  table.
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