DRBII Test Functions

This section contains diagnostic tests for the speed control systems. In order to perform the tests, you must operate the DRBII to reach the SPEED CONTROL MENU level within the diagnostic testing program. At the SPEED CONTROL MENU level, you can read DRBII faults and perform diagnostic test functions.

The SPEED CONTROL MENU provides a choice of several different categories of test functions as described below.

System Tests - This function is not available in the engine controller diagnostics program. Read Faults - This function enables the Technician to read faults and erase faults.

State Display - This function enables the Technician to monitor the speed control components or the charging system alternator.

Actuator Tests - This function enables the Technician to actuate servo solenoids or alternator field.