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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2024 (COMPONENT LOCATIONS - ELECTRICAL CENTER IDENTIFICATION VIEWS)ELECTRICAL CENTER IDENTIFICATION VIEWSJUNCTION BLOCK - LEFT I/P X1
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Junction Block - Left I/P X1

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Junction Block - Left I/P X1
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Fig 1: Junction Block - Left I/P X1 Connector End View
GM1665708Courtesy of GENERAL MOTORS CORP.
Junction Block - Left I/P X1

Pin Wire Circuit Function
A1 0.5 RD/WH 4440 Battery Positive Voltage
A2 - - Not Used
A3 0.35 PK 239 Ignition Voltage
0.35 PK 239 Ignition Voltage (NQH)
A4 0.35 PK 239 Ignition Voltage
0.35 PK 239 Ignition Voltage (HP2 or EXP)
A5 0.5 BK 2550 Ground (STZ or Y91, with U42 or with UK6)
B1-B2 - - Not Used
B3 1 BK 2550 Ground
B4 0.5 GY 157 Cargo Lamp Supply Voltage
B5 - - Not Used
C1 0.35 PK 1639 Ignition Voltage
C2 0.5 BN/WH 230 Instrument Panel Lamp Dimming Control
C3 0.5 BK 2550 Ground (STZ or Y91, with U2K or with UE1)
0.5 BK 2550 Ground (STZ or Y91, with U2K and with UE1)
C4-C5 - - Not Used
D1 2 RD/WH 1340 Battery Positive Voltage
D2 - - Not Used
D3 0.5 BN/WH 230 Instrument Panel Lamp Dimming Control (CF5)
D4-D5 - - Not Used
E1-E2 - - Not Used
E3 0.5 BK/WH 1851 Ground
0.8 BK/WH 1851 Ground
F1 5 RD/BK 642 Battery Positive Voltage
G1 - - Not Used
H1 0.5 BK/WH 1851 Ground
0.5 BK/WH 1851 Ground
J1 - - Not Used
K1 0.5 BK/WH 1851 Ground
0.35 BK/WH 1851 Ground
K2 2 BK/WH 1851 Ground
K3 0.8 BK/WH 1851 Ground
0.8 BK/WH 1851 Ground (EXP or HP2)
L1 0.5 OG 6815 Inadvertent Power Control
L2 0.5 RD/WH 240 Battery Positive Voltage (with TQ5, TRW or UG1)
L3 0.35 PU/WH 6816 Indicator Dimming Control
L4 0.35 WH/BK 5515 Inside Air Temperature Sensor Assembly Control (CJ2)
L5 - - Not Used
M1 0.5 BN/WH 230 Instrument Panel Lamps Dimming Control (X88 or Z88)
0.5 BN/WH 230 Instrument Panel Lamps Dimming Control (NQH)
M2 0.35 PK 1691 Automatic Day/Night Mirror Low Reference
M3 0.35 PU/WH 6816 Indicator Dimming Control
0.5 PU/WH 6816 Indicator Dimming Control (Z75)
M4 0.35 D-GN 734 Inside Air Temperature Sensor Signal (CJ2)
M5 0.5 L-BU 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage
0.5 L-BU 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage (EXP)
N1 0.35 D-GN 6134 Linear Interconnect Network Bus
N2-N4 - - Not Used
N5 0.35 PK 1139 Ignition Voltage
P1 0.35 D-BU 38 Backup Lamp Relay Control
P2 0.35 GY 1690 Automatic Day/Night Mirror Signal (with DL3 or with DR4)
P3 0.35 PU/WH 6816 Indicator Dimming Control (NQH)
P4 - - Not Used
P5 0.35 D-GN 6101 Low Reference
0.35 D-GN 6101 Low Reference (CJ3)
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 15467568
  • Service Connector: 19115661
  • Description: 50-Way F GT 280 Metri-Pack 800 Series (GY)

Terminal Part Information
  • Pins: A1, A3-A5, B3, B4, C1-C3, D3, E3, H1, K1, K3, L1-L4, M1-M5, N1, N5, P1-P3, P5
  • Terminated Lead: 13575753
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 15304711/8
  • Core/Insulation Crimp: Pins A1, A3 (without NQH), A4, A5, B4, C1, C2, D3, L1-L4, M1(NQH), M2-M5, N1, N5, P1-P3, P5 (CJ2) - E/A
  • Core/Insulation Crimp: Pins A3 (NQH), B3, C3, E3, H1, K1, K3, M1 (NQH), P5 (CJ3) - 2/A
  • Pins: D1, K2
  • Terminated Lead: 13575754
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 15304713/19
  • Core/Insulation Crimp: 4/4
  • Pins: E3
  • Terminated Lead: 13575718
  • Release Tool: J-38125-558
  • Diagnostic Test Probe: J-35616-44 (YE)
  • Terminal/Tray: Not Available
  • Core/Insulation Crimp: Not Available
  • Pins: F1
  • Terminated Lead: 13575718
  • Release Tool: J-38125-558
  • Diagnostic Test Probe: J-35616-44 (YE)
  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
RENDER: 1.0x

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