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Headlamp Module (TR7 or T4F) Connector End View

Fig 1: Headlamp Module (TR7 or T4F) Connector End View
GM1862109Courtesy of GENERAL MOTORS CORP.
Headlamp Module (TR7 or T4F)

Pin Wire Circuit Function
1 0.5 RD/WH 2140 Battery Positive Voltage (T4F/TR7)
2 0.35 OG/BK 5177 Left Headlamp Leveling Motor (TR7)
3 0.35 YE/BK 5176 Left Headlamp Leveling Motor (TR7)
4 0.35 PU/WH 5178 Left Headlamp Leveling Motor (TR7)
5 0.35 BK 5752 Left Headlamp Leveling Motor Low Reference (T4F/TR7)
6 - - Not Used
7 0.5 TN 2501 High Speed GMLAN Serial Data Bus- (T4F/TR7)
8 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+ (T4F/TR7)
9 - - Not Used
10 0.35 BN/WH 5180 Right Headlamp Leveling Motor (TR7)
11 0.35 OG/WH 5182 Right Headlamp Leveling Motor (TR7)
12 0.35 GY/BK 5183 Right Headlamp Leveling Motor (TR7)
13 - - Not Used
14 0.35 GY 5179 Left Headlamp Leveling Motor (TR7)
15 0.35 D-GN 7131 Left Front Headlamp Adaptive Forward Lighting System Motor Signal 3 (T4F)
16 0.35 BN 7129 Left Front Headlamp Adaptive Forward Lighting System Motor Signal 1 (T4F)
17-18 - - Not Used
19 0.5 TN 2501 High Speed GMLAN Serial Data Bus- (T4F/TR7)
20 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+ (T4F/TR7)
21 - - Not Used
22 0.35 OG 7133 Right Front Headlamp Adaptive Forward Lighting System Motor Signal 1 (T4F)
23 0.35 TN 7135 Right Front Headlamp Adaptive Forward Lighting System Motor Signal 3 (T4F)
24 0.35 PK/BK 5181 Right Headlamp Leveling Motor (TR7)
25 0.5 BK 250 Ground (T4F/TR7)
26 0.35 L-BU 7130 Left Front Headlamp Adaptive Forward Lighting System Motor Signal 2 (T4F)
27 0.35 GY 7132 Left Front Headlamp Adaptive Forward Lighting System Motor Signal 4 (T4F)
28 0.35 PU/WH 1211 Right Front Suspension Position Sensor Voltage Reference (TR7) (without F55)
29 0.35 L-BU/BK 1212 Right Front Suspension Position Sensor Low Reference (TR7) (without F55)
30 0.35 TN/WH 1213 Right Front Suspension Position Sensor Signal (TR7) (without F55)
31 0.35 OG/BK 1208 Right Rear Suspension Position Sensor Signal (TR7) (without F55)
32 0.35 L-GN/BK 1209 Right Rear Suspension Position Sensor Low Reference (TR7) (without F55)
33 0.35 L-GN/WH 1210 Right Rear Suspension Position Sensor Voltage Reference (TR7) (without F55)
34 0.5 L-BU 5986 Serial Data Communication Enable (T4F/TR7 without F55)
.35 L-BU 5986 Serial Data Communication Enable (T4F/TR7with F55)
35 0.35 L-GN/BK 5753 Right Headlamp Leveling Motor Low Reference (T4F/TR7)
36 0.35 PK 7134 Right Front Headlamp Adaptive Forward Lighting System Motor Signal 2 (T4F)
37 0.35 YE 7136 Right Front Headlamp Adaptive Forward Lighting System Motor Signal 4 (T4F)
38 - - Not Used
Connector Part Information 
  • Harness Type: Forward Lamp
  • OEM Connector: 31381-1000
  • Service Connector: Pending
  • Description: 38-Way F 2.8 Series, Sealed (BK)
Terminal Part Information 
  • Pins: 1, 25
  • Terminated Lead: 13575406
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 15304719/19
  • Core/Insulation Crimp: E/5
  • Pins: 2-5, 10-12, 14-16, 22-24, 26, 27, 34-37
  • Terminated Lead: SEALED: 13576387 UNSEALED: 13578917
  • Release Tool: J-38125-215A
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: SAITS-A03T-M064/14
  • Core/Insulation Crimp: 9/9
  • Pins:7, 8, 19, 20
  • Terminated Lead: SEALED: 13576388 UNSEALED: 13578917
  • Release Tool: J-38125-215A
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: SAITS-A03T-M064/14
  • Core/Insulation Crimp: 9/9
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