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• Use caution when measuring voltage above 25v • Use the low current shunt to measure circuits up • When testing for the presence of voltage or cur- • When measuring current, connect the meter in • Disconnect the live test lead before disconnecting • When using the meter function, keep the t away from spark plug or coil wires to avoid measuring error from outside interference. 4.3 WARNINGS 4.3.1 VEHICLE DAMAGE WARNINGS Before disconnecting any control module, make sure the ignition is ‘‘off ’’. Failure to do so could When testing voltage or continuity at any control module, use the terminal side (not the wire end) of 4.3.2 ROAD TESTING A COMPLAINT Some complaints will require a test drive as part of the repair verification procedure. The purpose of WARNING: REASSEMBLE ALL COMPONENTS BEFORE ROAD TESTING A VEHICLE. DO NOT TRY T SCREEN OR OTHER TEST EQUIPMENT DURING A TEST DRIVE. DO NOT T OR OTHER TEST EQUIPMENT FROM THE REARVIEW MIRROR DURING A TEST THE DRBIII T OR OTHER TEST EQUIPMENT. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL 5.0 REQUIRED TOOLS AND DRBIII t (diagnostic read-out box) Jumper Wires 6.0 GLOSSARY OF TERMS ABS antilock brake system ACM airbag control module BUX built up export CAB controller antilock brake CTM compass/temperature module DAB driver airbag DLC data link connector DTC diagnostic trouble code ECM engine control module HFM hands free module LHD left hand drive MIC mechanical instrument cluster NAV navigation NGC Next Generation Controller ORC occupant restraint controller (ACM) ORS occupant restraint system PAB passenger airbag PCI Programmable Communication In- PCM powertrain control module PDC power distribution center PWM pulse width modulated RHD right hand drive RKE remote keyless entry SBT seat belt tensioner SCI serial communication interface SDAR satellite digital audio receiver SKIM sentry key immobilizer module SKIS sentry key immobilizer system SQUIB also called initiator (located in rear TCM transmission control module VFD vacuum fluorescent display VTSS vehicle theft security system WRM window regulator module 19 GENERAL INFORMATION |