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Headlamp Leveling Module

WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Headlamp Leveling Module Connector End View
GM39784Courtesy of GENERAL MOTORS CORP.
Headlamp Leveling Module

Pin Wire Circuit Function
1 0.35 GY/BK 5183 Right Headlamp Leveling Motor (4) (TR7)
2 0.35 OG/WH 5182 Right Headlamp Leveling Motor (3) (TR7)
3 0.35 PK/BK 5181 Right Headlamp Leveling Motor (2) (TR7)
4 0.35 BN/WH 5180 Right Headlamp Leveling Motor (1) (TR7)
5 0.35 L-GN/BK 5753 Right Headlamp Leveling Motor Low Reference (TR7)
6 0.35 YE 5727 High Speed GMLAN Serial Data Wake Up (TT7/ TT8+K59)
0.35 YE 5727 High Speed GMLAN Serial Data Wake Up (TR7-K59)
7 0.35 OG/BK 1208 Left Rear Strut Position Sensor Voltage Reference (TR7-F55)
8 0.35 L-GN/WH 1210 Left Rear Strut Position Sensor Signal (TR7-F55)
9 0.35 L-GN/BK 1209 Left Rear Strut Position Sensor Low Reference (TR7-F55)
10 0.35 TN 2501 High Speed GMLAN Serial Data (-) (1) (TR7)
11 0.35 TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (TR7)
12 0.35 RD/WH 340 Battery Positive Voltage (TR7)
13 0.35 GY 5179 Left Headlamp Leveling Motor (4) (TR7)
14 0.35 PU/WH 5178 Left Headlamp Leveling Motor (3) (TR7)
15 0.35 OG/BK 5177 Left Headlamp Leveling Motor (2) (TR7)
16 0.35 YE/BK 5176 Left Headlamp Leveling Motor (1) (TR7)
17 0.35 L-BU/BK 5752 Left Headlamp Leveling Motor Low Reference (TR7)
18 - - Not Used
19 0.35 PU/WH 1205 Left Front Strut Position Sensor Voltage Reference (TR7-F55)
20 0.35 TN/WH 1207 Left Front Strut Position Sensor Signal (TR7-K59)
21 0.35 L-BU/BK 1206 Left Front Strut Position Sensor Low Reference (TR7-K59)
22 0.35 TN 2501 High Speed GMLAN Serial Data (-) (1) (TR7-F55)
0.35 TN 2501 High Speed GMLAN Serial Data (-) (1) (TT7/TT8+K59)
23 0.35 TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (TR7-F55)
0.35 TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (TT7/TT8+K59)
24 1 BK 250 Ground (TR7)
Connector Part Information 
  • OEM: 12129225
  • Service: See Catalog
  • Description: 24-Way F Micro-Pack 100 Series Sealed (WH)
Terminal Part Information 
  • Terminal/Tray: 12084913/5
  • Core/Insulation Crimp: W/W
  • Release Tool/Test Probe: 12122523/J-35616-6 (BN)
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