Hella Gutmann mega macs PC SE Manual De Instrucciones página 187

Hella Gutmann
11.5.3. Parameter
Many of the on-board systems supply digital measured values in the form of parameters for fast diagnostics. Parameters
indicate the current status or rather nominal and actual values of the component. The device displays the parameters al-
phanumerically and graphically.
Example 1
The engine temperature can be within a range of -30 °C to 120 °C.
If the temperature sensor reports 9 °C but the engine actually has a temperature of 80 °C, the ECU calculates an incorrect
injection time.
A trouble code is not stored, as this temperature is logical for the ECU.
Example 2
Fault text: Oxygen sensor signal faulty
In both cases, diagnostics can be significantly eased if the corresponding parameters are read out.
The mega macs PC SE software reads the parameters and displays them in plain text. It additionally provides information
on the parameters.
11.5.3.1. Reading Out Parameters
NOTICE
Calling up the ECU parameters for the fault diagnostics after the trouble codes have been read has priority
over all other work steps.
Proceed as follows to read out the parameters:
1. Perform steps 1 to 11 as described in section Vehicle selection.
CAUTION!
Pulling off of the HG-VCI PC when actuating the clutch
Risk of injury or material damages
Proceed as follows before startup:
1. Apply the parking brake.
2. No gear is engaged.
3. Regard the window with information and instructions.
mega macs PC SE
Working with the mega macs PC SE | 11.
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