Instruction Manual

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(3) For non-OBDII/EOBD vehicle, If the pin of the DLC is damaged or has insu󰀩cient power, please try any
of the following methods to proceed:
a. Cigarette Lighter Cable
b. Battery Clamps Cable
(4) Non-standard 16-PIN vehicle diagnostic sockets (OBDI).
A. Introduction of OBD vehicle diagnosis connector
In the development history of automobile diagnosis and detection, OBD system is an online diagnostic
system for internal combustion engines, which currently goes through a generation and a second
generation, the second generation being EOBD/OBDII, as shown in the diagram below, with a unified
hardware feature and interface denition for the diagnostic seat of the car.
Bus positive line Chassis ground
Signal ground CAN-H line
K-Line
L-Line
CAN-L lineBus negative line Battery power
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
OBD II Connector and Pinout
OBD II Diagnostic Port of Automobile