GM Service Manual Online
For 1990-2009 cars only
Table 1: Data Link Connector (DLC) OBD2
Table 2: Duty Check Data Link Connector

Data Link Connector (DLC) OBD2


Object Number: 287958  Size: CH

Connector Part Information

    â€¢ 09705 16AA0 21
    â€¢ BLK

Pin

Wire Color

Function

1-3

--

Not Used

4

BLK

Ground

5

BLK/BLU

Ground

6

--

Not Used

7

PPL/WHT

Serial Data

8

--

Not Used

9

PPL

Serial Data

10-15

--

Not Used

16

WHT

Battery Positive Voltage

Duty Check Data Link Connector


Object Number: 348371  Size: CH

Connector Part Information

    â€¢ 09706 06109 10
    â€¢ NAT

Pin

Wire Color

Function

1

--

Not Used

2

BLU/YEL

Diagnostic Request

3

--

Not Used

4

BLK/BLU

Ground

5

PPL/GRN

Diagnostic Request

6

PPL/RED

Upshift Indicator Control