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Relay Block Connector End View - I/P Bottom View

Fig 1: Relay Block - I/P Bottom View
GM892417Courtesy of GENERAL MOTORS CORP.
Relay Block Connector End View - I/P C1

GM365994Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193905
  • 68-Way F Metri-Pack 280 Series Flexlock (GY)
Pin Wire Color Circuit No. Function
A1 L-GN 24 Backup Lamp Supply Voltage - BCM
L-GN 24 Backup Lamp Supply Voltage - Junction Block - Rear
A2 - - Not Used
A3 BK/WH 1704 Low Reference
A4 D-GN/WH 636 Ambient Air Temperature Sensor Signal
A5 BK/WH 1851 Ground - HVAC Control Module
BK/WH 1851 Ground - Data Link Communications
A6 WH 193 Rear Defog Relay Control
A7 - - Not Used
A8 BN/WH 230 Instrument Panel Lamps Dimming Control
A9 BN 341 Ignition 3 Voltage
A10 D-GN/WH 817 Vehicle Speed Signal - Navigational Radio
A11 BN/WH 230 Instrument Panel Lamps Dimming Control - HVAC Control Module
BN/WH 230 Instrument Panel Lamps Dimming Control - Headlamp Switch
A12 GY/BK 690 Courtesy Lamp Supply Voltage
B1-B2 - - Not Used
B3 BK/WH 1851 Ground (UB1/UC6 w/o UE4)
B4 - - Not Used
B5 BK/WH 1851 Ground
B6 OG 1840 Battery Positive Voltage
B7 RD 642 Battery Positive Voltage
B8 BN/WH 230 Instrument Panel Lamps Dimming Control
B9 D-GN/WH 817 Vehicle Speed Signal - Navigational Radio
B10 GY/BK 690 Courtesy Lamp Supply Voltage - Footwell Courtesy Lamp - Left (If Equipped)
GY/BK 690 Courtesy Lamp Supply Voltage - Footwell Courtesy Lamp - Right (If Equipped)
B11-B12 - - Not Used
C1 - - Not Used
C2 BN/WH 230 Instrument Panel Lamps Dimming Control - Steering Wheel Controls
BN/WH 230 Instrument Panel Lamps Dimming Control - Traction Control Switch
C3 BN/WH 230 Instrument Panel Lamps Dimming Control
C4 OG 1732 Inadvertent Load Control Courtesy Lamps Supply Voltage - I/P Compartment Lamp
OG 1732 Inadvertent Load Control Courtesy Lamps Supply Voltage - Underhood Lamp
C5 BK/WH 1851 Ground - Rear Seat Audio
BK/WH 1851 Ground - Headlamp Switch
C8 BN/WH 230 Instrument Panel Lamps Dimming Control - Transfer Case
BN/WH 230 Instrument Panel Lamps Dimming Control - Ride Height Switch (w/ZM6)
C9 OG 1340 Battery Positive Voltage
C10 BN 2409 Interior Park Lamps Supply Voltage
C11-C12 - - Not Used
D1 WH/BK 5515 Inside Air Temperature Sensor Assembly Control
D2 BN/WH 230 Instrument Panel Lamps Dimming Control
D3 BN/WH 230 Instrument Panel Lamps Dimming Control
D4 OG 1732 Inadvertent Load Control Courtesy/Vanity/Reading Lamps Supply Voltage
D5 BK/WH 1851 Ground - I/PC
BK/WH 1851 Ground - OnStar® Module
D8 BK/WH 1851 Ground
D9 BK 1050 Ground
D10 BN 2409 Interior Park Lamps Supply Voltage
D11-D12 - - Not Used
E1 BN 718 Low Reference
E2 PK 1691 Automatic Day/Night Mirror Low Reference
E3 - - Not Used
E4 PU/WH 1382 LED Dimming Signal - 4WD Indicator Switch
PU/WH 1382 LED Dimming Signal - Ride Height Switch (w/ZM6)
E5 BK/WH 1851 Ground - Radio
BK/WH 1851 Ground - Flasher Module
E6 D-GN/WH 817 Vehicle Speed Signal - Navigational Radio
E7 PU/WH 1382 LED Dimming Signal
E8 BK/WH 1851 Ground - BCM - C2
BK/WH 1851 Ground - BCM - C3
E9 - - Not Used
E10 RD 242 Battery Positive Voltage
E11-E12 - - Not Used
F1 D-GN 734 Inside Air Temperature Sensor Signal
F2 GY 1690 Automatic Day/Night Mirror Signal
F3 PK 739 Ignition 1 Voltage
F4 - - Not Used
F5 BK/WH 1851 Ground
F6 PU/WH 1382 LED Dimming Signal - Headlamp Switch
PU/WH 1382 LED Dimming Signal - BCM
F7 OG 4540 Battery Positive Voltage
F8 BK/WH 1851 Ground
F9 L-BU 1620 Trailer CHMSL Supply Voltage
F10 D-BU 47 Trailer Auxiliary Supply Voltage
F11 YE 243 Accessory Voltage
F12 - - Not Used
Relay Block Connector End View - I/P C3

GM655838Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15328768
  • 12-Way F Metri-Pack 280 Series Flexlock (BN)
Pin Wire Color Circuit No. Function
A L-GN 24 Backup Lamp Supply Voltage
B OG 4540 Battery Positive Voltage
C BK 1050 Ground
D - - Not Used
E BN 341 Ignition 3 Voltage
F - - Not Used
G BK/WH 1704 Low Reference
H-J - - Not Used
K D-GN/WH 636 Ambient Air Temperature Sensor Signal
L GY/BK 690 Courtesy Lamp Supply Voltage
M OG 1732 Inadvertent Load Control Courtesy/Vanity/Reading Lamps Supply Voltage
Relay Block Connector End View - I/P C4

GM886342Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193922
  • 6-Way F Metri-Pack 280 Series Flexlock (CRM)
Pin Wire Color Circuit No. Function
A BN/WH 230 Instrument Panel Lamps Dimming Control - Sunroof Switch (w/CF5)
BN/WH 230 Instrument Panel Lamps Dimming Control - Garage Door Opener
B PK 1691 Automatic Day/Night Mirror Low Reference
C GY 1690 Automatic Day/Night Mirror Signal
D D-GN 734 Inside Air Temperature Sensor Signal
E BN 718 Low Reference
F WH/BK 5515 Inside Air Temperature Sensor Assembly Control
Relay Block Connector End View - I/P C7 (H.D. Trailer Wiring)

GM886343Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193924
  • 6-Way F Metri-Pack 280 Series Flexlock (BN)
Pin Wire Color Circuit No. Function
A BN 2409 Interior Park Lamps Supply Voltage
B RD 242 Battery Positive Voltage
C D-BU 47 Trailer Auxiliary Supply Voltage
D L-BU 1620 Trailer CHMSL Supply Voltage
E - - Not Used
F BK 1050 Ground
Relay Block Connector End View - I/P C7 (Off Road Lighting)

GM886343Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193924
  • 6-Way F Metri-Pack 280 Series Flexlock (BN)
Pin Wire Color Circuit No. Function
A - - Not Used
B D-BU 242 Battery Positive Voltage
C-E - - Not Used
F BK 1050 Ground
Relay Block Connector End View - I/P C10

GM831381Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15357030
  • 12-Way F Metri-Pack 280 Series Flex-Lock (WH)
Pin Wire Color Circuit No. Function
A OG 4540 Battery Positive Voltage - LR Heated Seat Module (w/KA7)
OG 4540 Battery Positive Voltage - RR Heated Seat Module (w/KA7)
B GY/BK 690 Courtesy Lamp Supply Voltage - Left B-Pillar
GY/BK 690 Courtesy Lamp Supply Voltage - Right B-Pillar
C GY/BK 690 Courtesy Lamp Supply Voltage - LR Door
GY/BK 690 Courtesy Lamp Supply Voltage - RR Door
D - - Not Used
E OG 1440 Battery Positive Voltage
F BN/WH 230 Instrument Panel Lamps Dimming Control - LR Window Switch
BN/WH 230 Instrument Panel Lamps Dimming Control - RR Window Switch
G - - Not Used
H OG 1440 Battery Positive Voltage
J - - Not Used
K OG 1340 Battery Positive Voltage
L PU 293 Rear Defog Element Supply Voltage
M - - Not Used
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