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Body Control Module (BCM) C2 Connector End View

Body Control Module (BCM) C2 Connector End View

GM1376254Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • OEM: 15393121
  • Service: NS
  • 72-Way F Micro-64 Unsealed(GY)
Pin Wire Color Circuit No. Function
1 TN/BK 2500 High Speed GMLAN Serial Data (+) 1
2 TN/BK 2500 High Speed GMLAN Serial Data (+) 1
3 PK/WH 1970 Headlamp Low Beam Relay Control
4 PU 524 Headlamp Dimmer Switch High Beam Signal
5 BN/WH 301 Park Lamp Switch On Signal
6 YE 1977 Rear Fog Lamp Relay Control (Export)
7 PK 5068 Intrusion Sensor Switch Disable Signal (Export)
8 - - Not Used
9 TN 2144 Hazard Switch Signal
10 - - Not Used
11 OG 5721 Ignition Mode Switch Off LED Signal
12-13 - - Not Used
14 TN 28 Horn Relay Control
15 WH 103 Headlamp Switch On Signal
16 OG 192 Front Fog Lamp Switch Signal
17 L-BU 1872 Park Lamp Switch Off Signal 2
18 GY 5381 Brake Position Sensor 5-Volt Reference
19 TN 2501 High Speed GMLAN Serial Data (-) 1
20 TN 2501 High Speed GMLAN Serial Data (-) 1
21-30 - - Not Used
31 TN 5380 Brake Position Sensor Signal
32-48 - - Not Used
49 PK 1607 Park Brake Relay Control 2
50 - - Not Used
51 BN 1356 Flash To Pass Switch Signal
52-56 - - Not Used
57 D-GN 5737 Adaptive Cruise Control Gap Up/Down Switch Signal
58 - - Not Used
59 BN 5382 Brake Position Sensor Low Reference
60 - - Not Used
61 GY 1884 Cruise Control Set/Coast/Resume/Accelerate Switch Signal
62-65 - - Not Used
66 L-BU/WH 1414 Left Front Turn Signal Switch Signal
67 D-BU/WH 1415 Right Front Turn Signal Switch Signal
68 BN/WH 1571 Traction Control Switch Signal 2
69 D-GN/WH 1932 Shift Select Switch Park Signal
70 - - Not Used
71 L-GN 5720 Ignition Mode Switch Accessory LED Signal
72 - - Not Used


Body Control Module (BCM) C2 Connector End View

GM1376254Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • OEM: 15393121
  • Service: See Catalog
  • 72-Way F Micro-64 Unsealed(GY)
Pin Wire Color Circuit No. Function
1 TN/BK 2500 High Speed GMLAN Serial Data (+) 1
2 TN/BK 2500 High Speed GMLAN Serial Data (+) 1
3 PK/WH 1970 Headlamp Low Beam Relay Control
4 PU 524 Headlamp Dimmer Switch High Beam Signal
5 BN/WH 301 Park Lamp Switch On Signal
6 YE 1977 Rear Fog Lamp Relay Control (Export)
7 PK 5068 Intrusion Sensor Switch Disable Signal (Export)
8 - - Not Used
9 TN 2144 Hazard Switch Signal
10 - - Not Used
11 OG 5721 Ignition Mode Switch Off LED Signal
12-13 - - Not Used
14 TN 28 Horn Relay Control
15 WH 103 Headlamp Switch On Signal
16 OG 192 Front Fog Lamp Switch Signal
17 L-BU 1872 Park Lamp Switch Off Signal 2
18 GY 5381 Brake Position Sensor 5-Volt Reference
19 TN 2501 High Speed GMLAN Serial Data (-) 1
20 TN 2501 High Speed GMLAN Serial Data (-) 1
21-30 - - Not Used
31 TN 5380 Brake Position Sensor Signal
32-48 - - Not Used
49 PK 1607 Park Brake Relay Control 2
50 - - Not Used
51 BN 1356 Flash To Pass Switch Signal
52-56 - - Not Used
57 D-GN 5737 Adaptive Cruise Control Gap Up/Down Switch Signal
58 - - Not Used
59 BN 5382 Brake Position Sensor Low Reference
60 - - Not Used
61 GY 1884 Cruise Control Set/Coast/Resume/Accelerate Switch Signal
62-65 - - Not Used
66 L-BU/WH 1414 Left Front Turn Signal Switch Signal
67 D-BU/WH 1415 Right Front Turn Signal Switch Signal
68 BN/WH 1571 Traction Control Switch Signal 2
69 D-GN/WH 1932 Shift Select Switch Park Signal
70 - - Not Used
71 L-GN 5720 Ignition Mode Switch Accessory LED Signal
72 - - Not Used