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Home >> Cadillac >> 2004 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 275 (Data Link Communication System) >> Component Locator >> Data Link Communications Connectors
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Data Link Communications Connectors

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Data Link Connector (DLC)

GM68793Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12110250
  • 16-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
1 - - Not Used
2 PPL 1132 DLC Class 2 Serial Data
3 - - Not Used
4 BLK 1850 Ground
5 BLK/WHT 451 Ground
6 TAN/WHT 2500 High Speed GMLAN Serial Data (+) (HP2)
7-13 - - Not Used
14 TAN 2501 High Speed GMLAN Serial Data (-) (HP2)
15 - - Not Used
16 ORN 640 Battery Positive Voltage
Splice Pack - SP205

GM831366Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305291
  • 12-Way F Metri-Pack 280 Splice Saver DBL (BLK)
Pin Wire Color Circuit No. Function
A ORN 1044 Radio Class 2 Serial Data
PNK 1045 Serial Communications Circuit
B DK GRN 1049 PCM Class 2 Serial Data
C DK GRN/WHT 1133 ATC Class 2 Serial Data (NP1 or NP8)
LT BLU 1122 ABS Class 2 Serial Data
D PPL 1132 DLC Class 2 Serial Data
PPL 1807 Class 2 Serial Data (Primary) (w/AU8)
E WHT 1038 HVAC Class 2 Serial Data
F TAN 1047 PDM Class 2 Serial Data
G GRY 1036 IPC Class 2 Serial Data
H DK BLU/WHT 2218 Serial Communications Circuit
J GRY 2567 Rear Wheel Steering Control Module Class 2 Serial Data - w/ NYS
K YEL 2470 Allison Class 2 Serial Data - w/ M74
PPL/WHT 5687 HCM Class 2 Serial Data (HP2)
L BRN 1046 DDM Class 2 Serial Data
M LT GRN 1037 BCM Class 2 Serial Data
Splice Pack - SP207 (Base and Uplevel)

GM338576Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191216
  • 12-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
A - - Not Used
B PNK 1045 RFA Class 2 Serial Data
C YEL 1127 Trip Computer/Nav Class 2 Serial Data
D-F - - Not Used
G LT BLU 2288 LGM Class 2 Serial Data (UK6)
H LT GRN/
BLK
1098 VCM (Vehicle Communication) Class 2 Serial Data - w/ U42
J - - Not Used
K LT GRN 2271 ADG Class 2 Serial Data w/ U2K &U2L
L-M - - Not Used
Splice Pack - SP207 (Luxury)

GM338576Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191216
  • 12-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
A - - Not Used
B PNK 1045 RFA Class 2 Serial Data
C YEL 1127 Trip Computer/Nav Class 2 Serial Data
D TAN 5072 Remote Playback Device Class 2 Serial Data - w/ U1S
E - - Not Used
F DK BLU 2272 Amplifier Class 2 Serial Data
G LT BLU 2288 LGM Class 2 Serial Data
H LT GRN/
BLK
1098 VCM (Vehicle Communication) Class 2 Serial Data - w/ U42
J - - Not Used
K LT GRN 2271 ADG Class 2 Serial Data - w/U2K & U2L
L-M - - Not Used