User Manual

10
NOTE
Sometimes the vehicle LED lights yellow when the VCMI device is connected by other
tablets, please wait for 2 minutes to automatically disconnect them, or when the Wi-Fi
signal is weak, please try to reconnect the VCMI.
Communication Capability
The Vehicle Communication and Measurement Interface supports Bluetooth (BT), Wi-Fi
and USB communications. It can transmit vehicle data to the tablet with or without a cable
connection. In open areas, the working range of the transmitter through BT
communication is up to 328 feet (100 m). The working range of 5G communication Wi-Fi
is up to 164 feet (50 m). If the signal is lost due to being taken out of range,
communication will be restored once the tablet is within range.
Measurement Capability
The VCMI device is designed with the functions of multimeter, oscilloscope, waveform
generator and OBDII CAN Bus Check. The parameters such as voltage, resistance,
current, signal frequency, and voltage-time characteristic of the signal can be measured
and the results are displayed on the tablet.
Programming Capability
The VCMI device is a D-PDU, SAE J2534 & RP1210 compliant PassThru programming
interface device. Using the updated OEM software, it is capable of replacing the existing
software/firmware in the Electronic Control Units (ECUs), programming new ECUs and
fixing software-controlled drivability issues and emission issues.
2.2.2 Power Sources
The VCMI device can receive power from the following sources:
Vehicle Power
AC/DC Power Supply
Built-in Rechargeable Battery Pack
Vehicle Power
The VCMI device operates on 12/24 Volt vehicle power, which receives power via the
vehicle data connection port. The device powers on whenever it is connected to an OBD
II/EOBD compliant Data Link Connector (DLC). For non OBD II/EOBD compliant vehicles,
the device can be powered from a cigarette lighter or other suitable power port on the
test vehicle using the auxiliary power cable.
AC/DC Power Supply
The VCMI device can be powered from a wall socket using the AC/DC power adapter.