DRB-II Test Functions: Notes
NOTE:
DO NOT touch DRB-II keypad during DRB-II power-up sequence, or an error message will result.
NOTE:
Because DRB-II is grounded through diagnostic connector, only one volt-ohmmeter test lead is required when using volt-ohmmeter option. DRB-II volt-ohmmeter should only be used when required by diagnostic procedure.
- In order to perform diagnostic tests using DRB-II, DRB-II must be in LH CLIMATE CONTROL menu. At LH CLIMATE CONTROL menu, fault codes and DRB-II test functions can be accessed.
- To reach LH CLIMATE CONTROL menu, turn ignition off. Attach DRB-II to data link (diagnostic) connector. Connector is located under instrument cluster, next to center console. See Figure. Turn ignition switch to RUN position.
- All DRB-II character positions will illuminate and copyright information will appear on screen for a few seconds. If DRB-II screen is blank or any error messages appear, see DRB-II PROBLEMS & ERROR MESSAGES. After a few seconds (no error messages present), the DRB-II menu will appear.
- At DRB-II menu, press "4" (SELECT SYSTEM) key to enter diagnostic test program. At SELECT SYSTEM menu, select "9" (LH CLIMATE CONT) key to enter climate (A/C-heater) control part of the DRB-II program. After a few seconds, the LH CLIMATE CONTROL menu will appear. The screen will display a menu of the DRB-II test categories for the A/C-heater system.
- At LH CLIMATE CONTROL menu of A/C-heater system diagnostic program, specific test functions programmed into DRB-II cartridge can be performed. The following DRB-II modes can be accessed:CLIMATE TESTS, CLIMATE FAULTS, CLIMATE STATE, CLIMATE ACTUATORS and CLIMATE ADJUSTMENT.