On-Board Computer Test Functions

On-Board Computer Functions
- The BC is coded on the assembly line for the specific country version.
- It can be changed in the dealership using the DIS tester or MoDiC.
- All vehicle specific data for the BC's operation is stored in the NVRAM of the BC.
- The BC functions are called up by pressing the turn signal lever

In addition to the clock it offers the following functions:




OUTSIDE TEMPERATURE - the temperature display is dampened, as with other displays to prevent underhood temperatures from influencing the sensor when the vehicle is stopped.

The warning gong will sound when the outside temperature drops below 37 °F as with other BC displays.

AVERAGE FUEL CONSUMPTION - the average fuel consumption is displayed in MPG. As with other BCs it is calculated from the "ti" and road speed signals.

Pressing S/R with the MPG displayed, will start a new calculation.

RANGE - the estimated distance on the remaining fuel is displayed. The range value is determined from the "ti" and road speed signals as with other BCs.

AVERAGE ROAD SPEED - The average road speed corresponds to other BCs, pressing the S/R button will start a new calculation.

On-Board Computer Test Functions
There are four test functions available for the Z3/318ti board computer. Press and hold the clock and S/R buttons simultaneously to enter the test functions. Scroll through the test steps by pressing the stalk switch.




TEST 1. - 12/24 hour clock mode. Press the clock button to switch between 12/24 hour display.

TEST 2. - Display test. Pressing the S/R button will illuminate all of the LCD segments of the display. The BC will then return to the test mode.

TEST 3. - Correction factor for the MPG display. The correction factor corresponds to other BC factors. The value can be corrected from 750 to 1250 by scrolling with the clock button. When the new value is reached it is stored by pressing the S/R button.

TEST 4. - Acoustic test. Pressing the S/R button will test the temperature warning gong.