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Junction Block - I/P C1 - Bottom View

WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Junction Block- I/P C1 - Bottom View
GM1156070Courtesy of GENERAL MOTORS CORP.
Junction Block - I/P Wire Entry

Connector Part Information
  • 15401495
  • 48-Way F Metri-Pack 280 Series (BK)
Pin Wire Color Circuit No. Function
2A D-GN 117 Right Front Speaker Output (-) (UQ3/UQ5)
D-GN 117 Right Front Speaker Output (-) (UQ7/Y91)
2B L-GN 200 Right Front Speaker Output (+) (UQ3/UQ5)
L-GN 200 Right Front Speaker Output (+) (UQ7/Y91)
2C BK 1851 Ground (AU3 w/o YE9)
2D BN/WH 230 Instrument Panel Lamps Dimming Control (AU3 w/o YE9/Y91)
2E TN/WH 746 Right Front Door Ajar Switch Signal (w/o YE9)
2F BK 1050 Ground
3A- 3F - - Not Used
4A BK 1050 Ground
4B OG 52 Blower Motor High Control (C42 and CJ3)
GY/BK 2337 Lower Right Air Temperature Sensor Signal (CJ2)
4C PU 73 Medium 3 Blower Motor Control (C42 and CJ3)
BN 718 Low Reference (CJ2)
4D RD 542 Battery Positive Voltage
4E TN 63 Blower Motor Medium 1 Control (C42 and CJ3)
PU 1838 Recirculation Door Position Signal (CJ2)
4F PU/WH 760 Blower Motor Speed Control (CJ2)
4G YE 60 Blower Motor Low Control (C42/CJ3)
4H - - Not Used
4J L-BU/BK 1688 5-Volt Reference (CJ3/CJ2)
4K L-BU 72 Medium 2 Blower Motor Control (CJ3/C42)
4L - - Not Used
4M YE 1791 Low Reference (CJ2/CJ3)
5A - - Not Used
5B L-GN 2275 Mode Door Position Signal (CJ2/CJ3)
5C TN 2273 Mode Door Control (CJ2/CJ3)
5D D-BU 1199 Left Air Temperature Door Control (CJ2/CJ3)
5E L-BU 733 Left Air Temperature Door Position Signal (CJ2/CJ3)
5F - - Not Used
6A OG 3840 Battery Positive Voltage (CF5)
6B BN 2409 Interior Park Lamps Supply Voltage
6C BK 1050 Ground
6D D-BU 1353 RAP Supply Voltage (CF5)
6E BN/WH 230 Instrument Panel Lamps Dimming Control (CF5)
6F - - Not Used
7A GY 295 Door Lock Actuator Lock Control (AU3 w/o YE9)
7B TN 1047 PDM Class 2 Serial Data
7C OG 4240 Battery Positive Voltage (YE9)
7D TN 294 Door Lock Actuator Unlock Control (AU3 w/o YE9)
7E WH 194 Door Unlock Control (AU3 w/o YE9)
OG 1340 Battery Positive Voltage (YE9)
7F L-BU 195 Door Lock Control (AU3 w/o YE9)
D-BU 2115 Right Turn Signal Lamps Supply Voltage (Except Base)
8A WH/BK 2339 Lower Left Air Temperature Sensor Signal (CJ2)
8B - - Not Used
8C BN 341 Ignition 3 Voltage (CJ2/CJ3)
8D D-BU 1646 Right Air Temperature Door Position Signal (CJ2/CJ3)
8E WH/BK 1236 Right Air Temperature Door Control (CJ2/CJ3)
8F D-GN 1614 Recirculation Door Control (CJ2/CJ3)
Junction Block - I/P - C2

GM366024Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193930
  • 6-Way F Metri-Pack 280 Series Flexlock (BK)
Pin Wire Color Circuit No. Function
A D-GN 117 Right Front Speaker Output (-) (UQ3/UQ5/UQ7)
D-GN 117 Right Front Speaker Output (-) (UQ3)
B L-GN 200 Right Front Speaker Output (+) (UQ3/UQ5/UQ7)
L-GN 200 Right Front Speaker Output (+) (UQ3)
C BK 1851 Ground (AU3 w/o YE9)
D BN/WH 230 Instrument Panel Lamps Dimming Control (AU3 w/o YE9)
E BK/WH 746 Right Front Door Ajar Switch Signal (w/o YE9)
F BK 1050 Ground (YE9)
BK 1050 Ground (w/o YE9)
BK 1050 Ground (w/o YE9)
Junction Block - I/P - C4

GM655757Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12194037
  • 12-Way F Metri-Pack 280 Series Flexlock (BN)
Pin Wire Color Circuit No. Function
A BK 1050 Ground
B OG 52 Blower Motor High Control (C42/CJ3)
GY/BK 2337 Lower Right Air Temperature Sensor Signal (CJ2)
C PU 73 Medium 3 Blower Motor Control (C42/CJ3)
BN 718 Low Reference (CJ2)
BN 718 Low Reference (CJ2)
D RD 542 Battery Positive Voltage
E TN 63 Blower Motor Medium 1 Control (C42/CJ3)
PU 1838 Recirculation Door Position Signal (CJ2)
F PU/WH 760 Blower Motor Speed Control (CJ2)
G YE 60 Blower Motor Low Control (C42/CJ3)
H L-BU/BK 1688 5-Volt Reference (CJ2/CJ3)
L-BU/BK 1688 5-Volt Reference (CJ2/CJ3)
J L-BU/BK 1688 5-Volt Reference (CJ2)
L-BU/BK 1688 5-Volt Reference (CJ2)
L-BU/BK 1688 5-Volt Reference (CJ3)
K L-BU 72 Medium 2 Blower Motor Control (C42/CJ3)
L YE 1791 Low Reference (CJ2)
YE 1791 Low Reference (CJ2)
YE 1791 Low Reference (CJ3)
M YE 1791 Low Reference (CJ2/CJ3)
YE 1791 Low Reference (CJ2/CJ3)
Junction Block - I/P - C5

GM366012Courtesy 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 L-GN 2275 Mode Door Position Signal
C TN 2273 Mode Door Control
D D-BU 1199 Left Air Temperature Door Control (CJ2/CJ3)
E L-BU 733 Left Air Temperature Door Position Signal (CJ2/CJ3)
F - - Not Used
Junction Block - I/P - C6

GM655740Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193929
  • 6-Way F Metri-Pack 280 Series Flexlock (L-GN)
Pin Wire Color Circuit No. Function
A OG 3840 Battery Positive Voltage (CF5)
B BN 2409 Interior Park Lamps Supply Voltage (U01)
C BK 1050 Ground (U01/CF5)
D D-BU 1353 RAP Supply Voltage (CF5)
E BN/WH 230 Instrument Panel Lamps Dimming Control (CF5)
F - - Not Used
Junction Block - I/P - C7

GM366003Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193922
  • 6-Way F Metri-Pack 280 Series Flexlock (CM)
Pin Wire Color Circuit No. Function
A GY 295 Door Lock Actuator Lock Control (AU3 w/o YE9)
B TN 1047 Class 2 Serial Data
C OG 4240 Battery Positive Voltage (YE9)
D TN 294 Door Lock Actuator Unlock Control (AU3 w/o YE9)
E WH 194 Door Unlock Control (AU3 w/o YE9)
OG 1340 Battery Positive Voltage
F L-BU 195 Door Lock Control (AU3 w/o YE9)
D-BU 2115 Right Turn Signal Lamps Supply Voltage (YE9)
Junction Block - I/P - C8

GM366015Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12193928
  • 6-Way F Metri-Pack 280 Series Flexlock (GY)
Pin Wire Color Circuit No. Function
A WH/BK 2339 Lower Left Air Temperature Sensor Signal (CJ2)
B BN 341 Ignition 3 Voltage - Air Temperature Actuator - Left (CJ2/CJ3)
BN 341 Ignition 3 Voltage - Air Temperature Actuator - Right (CJ2/CJ3)
C BN 341 Ignition 3 Voltage - Recirculation Actuator (CJ2/CJ3)
BN 341 Ignition 3 Voltage - Mode Actuator (CJ2/CJ3)
D D-BU 1646 Right Air Temperature Door Position Signal (CJ2/CJ3)
E WH/BK 1236 Right Air Temperature Door Control (CJ2/CJ3)
F D-GN 1614 Recirculation Door Control (CJ2/CJ3)
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