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Home >> Eagle >> 1990 >> Talon Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.0L >> DRB-II Diagnostic Mode >> State Displays
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State Displays

  1. This display enables technician to view conditions at the signal level. The 2 types of signals used are analog and digital. Analog signals are monitored at pins corresponding to vehicle harness splices (e.g. fuel pump relay).
  2. Digital signals correspond to data transmitted by the system controllers. Both signals are displayed in common units (e.g. temperature), but this information is not relative to diagnostic intent. Use up and down arrow keys on DRB-II to scroll through displays available.
  3. The following ENGINE state displays are available on the DRB-II:
    • Vehicle Program & Calibration Code:  Program numbers (PGM) indicate ECU is programmed for a specific engine.
    • Engine Sensors:  Allow technician to look at various engine sensors and system controllers during engine operation.
    • Engine I/O:  Allows technician to look at input and output signals that affect ECU operation.
    • Custom Display:  This is a screen the user can set up with his/her own custom display. Two custom display screens can be programmed into DRB-II.
    • Minimum/Current/Maximum:  The MIN/CURRENT/MAX display shows a history of conditions for a specific sensor. When this option is selected, maximum, current (static) and minimum values can be displayed for a specific sensor. To reset sensors to a zero value, simply press ENTER key. This display may be used to isolate intermittent faults. The MIN/CURRENT/MAX display allows technician to observe operation of 6 different sensor values. Information is displayed as a 3-digit number. The first value displayed is the minimum reading, second number is current reading and third value is the maximum reading. Typically sensors range between 2-252. Values less than 2 or greater than 252 will usually indicate that a sensor is shorted or disconnected. Watch minimum and maximum value to help diagnose intermittent problems.
    • Monitors:  This screen shows technician sensors and system controllers which affect fuel control, spark advance, RPM and A/C relay. There are 4 different screens available. An example screen No. 1 will show: Airflow Sensor, O2 sensor, battery, fuel injector, Throttle Position Sensor (TPS), barometric pressure sensor, coolant sensor and RPM. All of these inputs affect fuel control.
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