FCAR Auto Diagnostic Tool
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3. DLC (Data Transmission Connector) Diagnostic Socket
Unified Standard
(1) DLC diagnostic socket unified as standard 16PIN, mounted in the cab, under the driver side
instrument panel.
(2) There are two standard DLC pins: ISO - European standard
（
INTERNATIONAL STANDARDS
ORGANIZATION 9141-2
）
, use 7#, 15# pin to transfer data.
Each terminal function of OBD-II diagnostic blocks shown in Table 1.
Table: OBD-II Terminal Function
Terminal
Function Description
Terminal
Function Description
1
SAE J2411, GM single wire CAN,
GM single line CAN-BUS
9
when 7th pin is not convenient to
use, enable *KWP1281 or KWP2000
Protocol diagnostic line (K line)
2
ISO11519-4 (Bus+)(SAE J1850),and
10
th
pin used simultaneously
10
ISO 11519-4 (Bus-)(SAE J1850)
3
CCD-BUS network cable H line
11
CCD-BUS network cable L line
4
Car body directly grounding
12
Factory retained
5
Signal circuit grounding
13
Factory retained
6
ISO 15765-4, CAN-BUS high speed
diagnostic line (CAN-H line)
14
ISO15765-4, CAN-BUS high speed
diagnostic line (CAN-L line)
7
KWP1281 or KWP2000 protocol
diagnostic line (K line)
15
KWP1281 or KWP2000 protocol
diagnostic line (L line)
8
Factory retained
16
Connect battery “+” pole
For more product introduction and help, please visit FCAR official website www.fcar.com.
