6. Select
at the bottom of the upgrade proceeding window, then following message will be
shown.
<Figure 19: ECU Manual Upgrade – STEP 5>
CAUTION
<Figure 20: Low Voltage>
The pop up screen warns low voltage of battery prompted in the STEP 5 battery voltage check level.
To follow the instruction given before proceeding the ECU upgrade.
D439E Service Manual
296
5. Service Tool