Junction Block - Left I/P X1
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
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 (Y91 with U42) |
| 0.5 BK | 2550 | Ground (Y91 with U42 or with UK6) | |
| B1 | - | - | Not Used |
| B2 | 0.5 L-BU | 1320 | CHMSL Supply Voltage |
| 0.5 L-BU | 1320 | CHMSL Supply Voltage (EXP) | |
| 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 (Y91 with UE1) |
| 0.5 BK | 2550 | Ground (Y91 with U2K) | |
| C4 | 0.5 YE/BK | 5813 | Park Enable Supply Voltage (JF4) |
| 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 | 0.5 BK/WH | 1851 | Ground (XA7) |
| 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 | 0.8 BK/WH | 1851 | Ground |
| 0.8 BK/WH | 1851 | Ground | |
| H1 | 0.5 BK/WH | 1851 | Ground |
| 0.5 BK/WH | 1851 | Ground | |
| J1 | - | - | Not Used |
| K1 | 0.35 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) | |
| L1 | 0.5 OG | 6815 | Inadvertent Power Control |
| L2 | 0.5 RD/WH | 240 | Battery Positive Voltage (with TQ5, TRW and/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 (HP2) |
| 0.5 BN/WH | 230 | Instrument Panel Lamps Dimming Control (HP2 with 4WD) | |
| M2 | 0.35 PK | 1691 | Automatic Day/Night Mirror Low Reference (HP2) |
| 0.35 D-BU | 38 | Backup Lamp Relay Control (except HP2) | |
| 0.35 D-BU | 38 | Backup Lamp Relay Control (except HP2) | |
| 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 (HP2) |
| N1 | 0.35 D-GN/WH | 636 | Ambient Air Temperature Sensor Signal (DF5) |
| N2 | 0.35 YE | 61 | Low Reference (DF5) |
| N3-N4 | - | - | Not Used |
| N5 | 0.35 PK | 1139 | Ignition Voltage |
| P1 | 0.35 D-BU | 38 | Backup Lamp Relay Control (HP2) |
| 0.35 D-BU | 38 | Backup Lamp Relay Control (HP2) | |
| 0.35 PK | 1691 | Low Reference (with DL3 or with DR4, except HP2) | |
| P2 | 0.35 GY | 1690 | Automatic Day/Night Mirror Signal (with DL3 or with DR4) |
| P3 | 0.35 PU/WH | 6816 | Indicator Dimming Control |
| P4 | - | - | Not Used |
| P5 | 0.5 D-GN | 6101 | Low Reference |
Connector Part Information
Terminal Part Information
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