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Home >> Cadillac >> 2007 >> STS V >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System - Introduction (2 Of 2) >> Component Locator >> Lighting Systems Connector End Views >> Headlamp Leveling Module
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Headlamp Leveling Module

Fig 1: Headlamp Leveling Module Connector End View
GM39784Courtesy of GENERAL MOTORS CORP.
Headlamp Leveling Module Connector Parts Information

Connector Part Information 
  • OEM: 12129225
  • Service: NS
  • Description: 24-Way F Micro-Pack 100 Series Sealed (WH)
Terminal Part Information 
  • Pins: 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 22, 23, 23, 24
  • Terminal/Tray: 12084913/5
  • Core/Insulation Crimp: W/W
  • Release Tool/Test Probe: 12122523/J-35616-6 (BN)
Headlamp Leveling Module Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 GY/BK 5183 Right Headlamp Leveling Motor (4) (TR7)
2 OG/WH 5182 Right Headlamp Leveling Motor (3) (TR7)
3 PK/BK 5181 Right Headlamp Leveling Motor (2) (TR7)
4 BN/WH 5180 Right Headlamp Leveling Motor (1) (TR7)
5 L-GN/BK 5753 Right Headlamp Leveling Motor Low Reference (TR7)
6 YE 5727 High Speed GMLAN Serial Data Wake Up (TT7/ TT8 w/ K59)
YE 5727 High Speed GMLAN Serial Data Wake Up (TR7 w/o K59)
7 OG/BK 1208 Left Rear Strut Position Sensor Voltage Reference (TR7 w/o F55)
8 L-GN/WH 1210 Left Rear Strut Position Sensor Signal (TR7 w/o F55)
9 L-GN/BK 1209 Left Rear Strut Position Sensor Low Reference (TR7 w/o F55)
10 TN 2501 High Speed GMLAN Serial Data (-) (1) (TR7)
11 TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (TR7)
12 RD/WH 340 Battery Positive Voltage (TR7)
13 GY 5179 Left Headlamp Leveling Motor (4) (TR7)
14 PU/WH 5178 Left Headlamp Leveling Motor (3) (TR7)
15 OG/BK 5177 Left Headlamp Leveling Motor (2) (TR7)
16 YE/BK 5176 Left Headlamp Leveling Motor (1) (TR7)
17 L-BU/BK 5752 Left Headlamp Leveling Motor Low Reference (TR7)
18 - - Not Used
19 PU/WH 1205 Left Front Strut Position Sensor Voltage Reference (TR7 w/o F55)
20 TN/WH 1207 Left Front Strut Position Sensor Signal (TR7 w/o K59)
21 L-BU/BK 1206 Left Front Strut Position Sensor Low Reference (TR7 w/o K59)
22 TN 2501 High Speed GMLAN Serial Data (-) (1) (TR7 w/o F55)
TN 2501 High Speed GMLAN Serial Data (-) (1) (TT7/TT8 w/ K59)
23 TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (TR7 w/o F55)
TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (TT7/TT8 w/ K59)
24 BK 250 Ground (TR7)
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