Index Jeep Jeep Wrangler TJ - service repair manual 2005 year
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Symptoms of individual module failure could in- clude any one or more of the above. The difference t. Diagnosis starts with symptom identification. If a complete PCI Bus Communication Failure is sus- t. If any modules are responding, the failure is not related to t may display 9BUS +/- SIG- NAL OPEN 9 or 9NO RESPONSE9 to indicate a communication problem. These same messages will t and in no way indicates whether or not the PCI Bus is operational. NOTE: Communication over the BUS is essential to the proper operation of the T . Problems with the operation of the BUS or DRBIII T must be corrected before proceeding with diagnostic testing. If there is NOTE: For 2005 model year, this vehicle will Diagnostic procedures and DTC numbers are PCM will have four color coded connectors C1 through C4, (C1-BLK, C2-ORANGE, C3-WHITE, C4-GREEN), each Also a New tool for probing connectors Miller #8815 is introduced, you must use the Miller tool #8815 to probe the 3.7 USING THE DRBIII T Refer to the DRBIII t user’s guide for instructions and assistance with reading trouble codes, erasing t functions. 3.7.1 DRBIII T ERROR MESSAGES AND BLANK SCREEN Under normal operation, the DRBIII t will dis- play one of only two error messages: • User-Requested WARM Boot • User-Requested COLD Boot This is a sample of such an error message display: ver: 2.14 Press MORE to switch between this display and the application screen. Press F4 when done noting information. If the DRBIII t should display any other error message, record the entire display and call the 3.7.2 DRBIII T DOES NOT POWER UP If the LED’s do not light or no sound is emitted at start up, check for loose cable connections or a bad t. If all connections are proper between the DRBIII t and the vehicle or other devices, and the vehicle battery is fully charged, an inoperative t may be the result of faulty cable or vehicle wiring. 9 GENERAL INFORMATION |