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vehicle battery is fully charged, an inoperative t may be the result of a faulty cable or vehicle wiring. For a blank screen, refer to the XJ 3.9.3 DISPLAY IS NOT VISIBLE Low temperatures will affect the visibility of the display. Adjust the contrast to compensate for this 4.0 DISCLAIMERS, SAFETY, 4.1 DISCLAIMERS All information, illustrations and specifications contained in this manual are based on the latest 4.2 SAFETY 4.2.1 TECHNICIAN SAFETY INFORMATION WARNING: ENGINES PRODUCE CARBON Some operations in this manual require that hydraulic tubes, hoses, and fittings, to be discon- pressure. Before disconnecting any hydraulic tubes, When servicing a vehicle, always wear eye pro- tection and remove any metal jewelry such as When diagnosing a transmission system problem, it is important to follow approved procedures where 4.2.2 VEHICLE PREPARATION FOR Make sure the vehicle being tested has a fully charged battery. If it does not, false diagnostic codes t Scan Tool, passes without fail. 4.2.3 SERVICING SUB-ASSEMBLIES Some components of the powertrain system are intended to be serviced in assembly only. Attempt- 4.2.4 DRBIII T SAFETY INFORMATION WARNING: EXCEEDING THE LIMITS OF THE T MULTIMETER IS DANGEROUS. IT CAN EXPOSE YOU TO SERIOUS OR POSSIBLY INJURY. CAREFULLY READ AND UNDERSTAND THE CAUTIONS AND THE • Follow the vehicle manufacture’s service specifi- • Do not use the DRB t if it has been damaged. • Do not use the test leads if the insulation is • To avoid electrical shock, do not touch the test • Choose the proper range and function for the • Do not exceed the limits shown in the table. 5 GENERAL INFORMATION |