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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1124 (Component Locations & Component Connector End Views) >> Component Connector End Views >> Headlamp Module
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Headlamp Module

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Headlamp Module Connector End View
GM1862109Courtesy of GENERAL MOTORS CORP.
Headlamp Module

Pin Wire Circuit Function
1 0.5 OG 2140 Battery Positive Voltage
2 0.35 OG/BK 5177 Left Headlamp Leveling Motor (2)
3 0.35 YE/BK 5176 Left Headlamp Leveling Motor (1)
4 0.35 PU/WH 5178 Left Headlamp Leveling Motor (3)
5 0.35 BK 5752 Left Headlamp Leveling Motor Low Reference
6 - - Not Used
7 0.5 TN 2501 High Speed GMLAN Serial Data Bus- (TT6/TT7/TT8/TR7)
8 0.5 TN/WH 2500 High Speed GMLAN Serial Data Bus+
9 - - Not Used
10 0.35 BN/WH 5180 Right Headlamp Leveling Motor (1)
11 0.35 OG/WH 5182 Right Headlamp Leveling Motor (3)
12 0.35 GY/BK 5183 Right Headlamp Leveling Motor (4)
13 - - Not Used
14 0.35 GY 5179 Left Headlamp Leveling Motor (4)
15 0.35 D-GN 7131 Left Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 3 (-TR7)
16 0.35 BN 7129 Left Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 1 (-TR7)
17-18 - - Not Used
19 0.5 TN 2501 High Speed GMLAN Serial Data Bus- (TT6/TT7/TT8/TR7)
20 0.5 TN/WH 2500 High Speed GMLAN Serial Data Bus+
21 - - Not Used
22 0.35 OG 7133 Right Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 1 (-TR7)
23 0.35 TN 7135 Right Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 3 (-TR7)
24 0.35 PK/BK 5181 Right Headlamp Leveling Motor (2)
25 0.5 BK 250 Ground
26 0.35 L-BU 7130 Left Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 2 (-TR7)
27 0.35 GY 7132 Left Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 4 (-TR7)
28 0.35 PU/WH 1211 Right Front Suspension Position Sensor Voltage Reference (TR7)
29 0.35 L-BU/BK 1212 Right Front Suspension Position Sensor Low Reference (TR7)
30 0.35 TN/WH 1213 Right Front Suspension Position Sensor Signal (TR7)
31 0.35 OG/BK 1208 Left Rear Suspension Position Sensor Voltage Reference (TR7)
32 0.35 L-GN/BK 1209 Left Rear Suspension Position Sensor Low Reference (TR7)
33 0.35 L-GN/WH 1210 Left Rear Suspension Position Sensor Signal (TR7)
34 0.5 L-BU 5986 Serial Data Communication Enable
35 0.35 BK 5753 Right Headlamp Leveling Motor Low Reference
36 0.35 PK 7134 Right Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 2 (-TR7)
37 0.35 YE 7136 Right Front Headlamp Adaptive Forward Lighting System (AFS) Motor Signal 4 (-TR7)
38 - - Not Used
Connector Part Information 
  • OEM: 89047375
  • Service: See Catalog
  • Description: 38-Way F (BK)
Terminal Part Information 
  • Pins: 1, 25
  • Terminal/Tray: 15304719/19
  • Core/Insulation Crimp: E/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: 2-5, 7, 8, 10-12, 14-16, 19, 20, 22-24, 26-37
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
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