User's Manual

General Introduction VCI – J2534 ECU Programming Device
11. Vehicle Data Connector (DB26-Pin MVCI)
12. External Programming Voltage Output Port
13. A/D Input Port
J2534 Reprogramming Capability
The J2534 ECU Programming Device is a SAE J2534-1 & -2 compliant
PassThru reprogramming interface device. Using the updated OEM software,
it is capable of replacing the existing software/firmware in the Electronic
Control Units (ECU), programming new ECUs and fixing software-controlled
drivability issues and emission issues.
Communication
The J2534 ECU programming device supports Bluetooth, Ethernet and USB
communication. It can transmit vehicle data to the MaxiSys display tablet with
or without a physical connection. The working range of the transmitter through
Bluetooth communication is 755 feet (about 230 m). A signal lost due to
moving out of range automatically restores itself when the display tablet unit is
brought closer to the VCI unit.
2.2.2 Power Sources
The J2534 programming device can receive power from both of the following
sources:
 Vehicle Power
 AC/DC Power Supply
Vehicle Power
The J2534 programming device operates on 12-volt vehicle power, which it
receives through 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 J2534 programming device can be powered from a wall socket using the
AC/DC power adapter.
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