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Diagnosis And Testing - Chime Warning System

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.

Refer to SYSTEM WIRING DIAGRAMS . The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds. The hard wired chime warning system inputs to the Central Timer Module (CTM), as well as other hard wired circuits for this system may be diagnosed and tested using conventional diagnostic tools and procedures.

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.
CONDITION

CHIME WARNING SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
DOOR AJAR WARNING CHIME WITH DOORS CLOSED
  1. Driver or passenger door ajar switch sense circuit shorted.
  2. Faulty driver or passenger door ajar switch.
  1. Disconnect the door wire harness connector for the driver door ajar switch or the passenger door ajar switch (1 switch - standard/club cab, 3 switches - quad cab) and the body wire harness connector for the CTM. Check for continuity between the driver or passenger door ajar switch sense circuit and a good ground. There should be no continuity. Repair the shorted driver or passenger door ajar switch sense circuit, if required.
  2. Check for continuity between the ground circuit cavity and the driver or passenger door ajar switch sense circuit cavity of the door ajar switch pigtail wire connector. There should be continuity with the door opened and no continuity with the door closed. Replace the faulty door latch, if required.
NO DOOR AJAR WARNING CHIME WITH A DOOR OPENED, BUT OTHER CHIME FEATURES OK
  1. Driver or passenger door ajar switch ground circuit open.
  2. Driver or passenger door ajar switch sense circuit open.
  3. Faulty driver or passenger door ajar switch.
  1. Check for continuity between the ground circuit of the door wire harness connector for the driver or passenger door ajar switch (1 switch - standard/club cab, 3 switches - quad cab) and a good ground. If not OK, repair the open ground circuit as required.
  2. Check for continuity between the driver or passenger door ajar switch sense circuit cavities of the door wire harness connector for the driver or passenger door ajar switch and the body wire harness connector for the CTM. Repair the open driver or passenger door ajar switch sense circuit, if required.
  3. Check for continuity between the ground circuit cavity and the driver or passenger door ajar switch sense circuit cavity of the door ajar switch pigtail wire connector. There should be continuity with the door opened and no continuity with the door closed. Replace the faulty door latch, if required.
NO KEY-IN IGNITION WARNING CHIME, BUT OTHER CHIME FEATURES OK
  1. Ignition switch ground circuit open.
  2. Key-in ignition switch sense circuit open.
  3. Faulty ignition switch.
  1. Check for continuity between the ground circuit cavity of the instrument panel wire harness connector for the ignition switch and a good ground. Repair the open ground circuit to ground, if required.
  2. Check for continuity between the key-in ignition switch sense circuit cavities of the instrument panel wire harness connector for the ignition switch and the instrument panel wire harness connector for the CTM. Repair the open key-in ignition switch sense circuit, if required.
  3. Check for continuity between the key-in ignition switch sense circuit terminal and the ground circuit terminal in the ignition switch connector receptacle. There should be continuity with the key in the ignition lock cylinder. Replace the faulty ignition switch, if required.
KEY-IN IGNITION WARNING CHIME WITH KEY REMOVED FROM IGNITION LOCK CYLINDER
  1. Key-in ignition switch sense circuit shorted.
  2. Faulty ignition switch.
  1. Disconnect the instrument panel wire harness connector for the ignition switch and the instrument panel wire harness connector for the CTM. Check for continuity between the key-in ignition switch sense circuit cavity and a good ground. There should be no continuity. Repair the shorted key-in ignition switch sense circuit, if required.
  2. Check for continuity between the key-in ignition switch sense circuit terminal and the ground circuit terminal in the ignition switch connector receptacle. There should be no continuity with the key removed from the ignition lock cylinder. Replace the faulty ignition switch, if required.
NO CHIMES AND OTHER CTM FEATURES ERRATIC OR DISABLED
  1. CTM ground circuit(s) open.
  2. CTM fused B(+) circuit(s) open.
  3. CTM fused ignition switch output (run-start and/or run-acc) circuit(s) open.
  4. Faulty CTM.
  1. Check for continuity between the three ground circuit cavbities of the instrument panel wire harness connector for the CTM and a good ground. Repair the open ground circuit(s), if required.
  2. Check for battery voltage at the two fused B(+) circuit cavities of the headlamp and dash wire harness connector for the CTM. Repair the open fused B(+) circuits, if required.
  3. With the ignition switch in the On position, check for battery voltage at the fused ignition switch output (both run-start and run-acc) circuit cavities of the instrument panel wire harness connector for the CTM. Repair the open fused ignition switch output circuit(s), if required.
  4. Replace the faulty CTM, if required.
NO WARNING CHIME SUPPORT FEATURES FOR EMIC AND/OR CMTC, BUT HARD WIRED CHIMES OK
  1. Faulty PCI data bus communication.
  1. Use a DRBIII(R) scan tool to diagnose the PCI data bus and electronic messaging between the CTM, EMIC, and CMTC. Refer to ELECTRONIC CONTROL MODULES . Repair the faulty data bus or replace the faulty electronic modules, if required.
NO CHIMES AT ALL, OTHER CTM FEATURES OK
  1. Faulty CTM.
  1. Replace the faulty CTM, if required.
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