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54
charger if needed.
Attach battery maintainer to vehicle battery to ensure a steady voltage is maintained
throughout programming. Voltage requirements differ by vehicle manufacturer.
Consult vehicle manufacturer recommendations prior to programming a module.
Do not quit the application during a module reprogramming as the process may fail
and may also result in permanent damage to the module.
Typical reprogramming operations require you to input and validate VIN number first.
Tap the input box and enter the correct number. The programming interface then displays.
Figure 4-27 Sample Reprogramming Operation Screen
The main section of the reprogramming interface offers information of the hardware, the
current software version and the newest software versions to be programmed into the
control units.
A series of on-screen operational instructions will display to guide you through the
programming procedure.
Carefully read the on-screen information and follow the instruction to execute the
programming procedure.
4.9.3 Re-flash Errors
IMPORATANT
When reprogramming onboard, always make sure the vehicle battery is fully charged
and in good working condition. During reprogramming, the operation may fail if voltage
falls below the proper operation voltage. Sometimes a failed operation can be recovered,
but the failed reprogramming can also ruin the control module. We recommend
connecting an external battery maintainer to the vehicle to ensure a steady voltage is
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