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Diagnosis And Testing - Sentry Key Immobilizer System: Notes

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, AIRBAG, SEAT BELT TENSIONER, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT.
SENTRY KEY IMMOBILIZER SYSTEM SPECIFICATION

SENTRY KEY IMMOBILIZER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
SECURITY INDICATOR FAILS TO LIGHT DURING BULB TEST
  1. Light-Emitting Diode (LED) faulty.
  2. Fuse faulty.
  3. Ground path faulty.
  4. Battery feed faulty.
  5. Ignition feed faulty.
  1. Perform the instrument cluster actuator test. (Refer to ACTUATOR TEST ).
  2. Check the SKIM fused B(+) fuse and the fused ignition switch output (run-start) fuse in the Junction Block (JB). Replace fuses, if required.
  3. Check for continuity to ground at the connector for the SKIM. Repair wiring, if required.
  4. Check for battery current at the connector for the SKIM. Repair wiring, if required.
  5. Check for battery current at the connector for the SKIM with the ignition switch in the On position. Repair wiring, if required.
SECURITY INDICATOR FLASHES FOLLOWING BULB TEST
  1. Invalid key in ignition switch lock cylinder.
  2. Key-related fault.
  1. Replace the key with a known valid key.
  2. Use a DRBIII(R) scan tool and the appropriate diagnostic information for further diagnosis.
SECURITY INDICATOR LIGHTS SOLID FOLLOWING BULB TEST
  1. SKIS system malfunction/fault detected.
  2. SKIS system inoperative.
  1. Use a DRBIII(R) scan tool and the appropriate diagnostic information for further diagnosis.
  2. Use a DRBIII(R) scan tool and the appropriate diagnostic information for further diagnosis.
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