Making Specific Test Selection
- On non-CRT equipped vehicles, scrolling to a lower specific test number is done by depressing the FAN DOWN key. Scrolling to a higher specific test number is done by depressing the FAN UP key. The system will automatically display the values for whatever specific test number is displayed.
- On CRT equipped vehicles, scrolling to a lower specific test number is done by depressing the NO key on the CRT control panel. Scrolling to a higher number is done by depressing the YES key. The system will automatically display the values for whatever specific test number is displayed.NOTE: To cancel a specific test type selection and activate a repeat of the specific test type selection process, depress the OFF key on ECC panel of non-CRT equipped vehicles or LEVL key on the CRT control panel of CRT equipped vehicles.
- The charging system malfunctions represented by the specific test selection numbers are as follows:
- BD50: Battery voltage is read in volts between zero and 16.3.
- BD51: The alternator field is displayed as a percentage. A value close to zero percent represents MINIMUM voltage regulator on time and a value close to 100 percent represents MAXIMUM voltage regulator on time.
- BD61: Engine speed is displayed in RPM from zero to 6375.
- BD98: The ignition cycle value is displayed as the number of times the BCM has been turned OFF since a BCM trouble code was last detected. After 100 ignition cycles without any malfunctions detected, all BCM trouble codes are cleared.
- BI51: The alternator feedback display is LO when there is an alternator problem or when engine is not running.
- ED10: Battery voltage is read in volts between zero and 25.5 volts.