Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C1500, 5.3 ZREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROL SYSTEM - 8.1L - INTRODUCTION (2 OF 2))COMPONENT LOCATORPOWERTRAIN CONTROL MODULE (PCM) CONNECTORSPOWERTRAIN CONTROL MODULE (PCM) - C2
2006 Chevrolet Suburban C1500, 5.3 Z
Powertrain Control Module (PCM) - C2
2006 Chevrolet Suburban C1500, 5.3 ZSECTION Powertrain Control Module (PCM) - C2
WARNING: This page is about a different variant/trim than selected.
Powertrain Control Module (PCM) Connector End Views
Connector Part Information
|
Powertrain Control Module (PCM) - C2
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | BK/WH | 451 | Ground |
| 2 | - | - | Not Used |
| 3 | TN | 1465 | Fuel Pump Relay Control - Secondary |
| 4-8 | - | - | Not Used |
| 9 | D-GN/WH | 465 | Fuel Pump Relay Control |
| 10 | WH | 121 | Engine Speed Signal |
| 11-13 | - | - | Not Used |
| 14 | RD/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
| 15 | BN | 25 | Charge Indicator Control |
| 16 | GY/BK | 1694 | 4WD Low Signal |
| 17-19 | - | - | Not Used |
| 20 | L-GN/BK | 822 | VSS Low Signal |
| 21 | PU/WH | 821 | VSS High Signal |
| YE | 400 | VSS High Signal | |
| 22-24 | - | - | Not Used |
| 25 | TN | 472 | IAT Sensor Signal |
| 26 | PU | 2121 | IC 1 Control |
| 27 | RD | 2127 | IC 7 Control |
| 28 | L-BU/WH | 2126 | IC 6 Control |
| 29 | D-GN/WH | 2124 | IC 4 Control |
| 30 | - | - | Not Used |
| 31 | YE | 492 | MAF Sensor Signal |
| 32 | L-GN | 432 | MAP Sensor Signal |
| 33 | - | - | Not Used |
| 34 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
| 35-38 | - | - | Not Used |
| 39 | RD | 631 | 12-Volt Reference |
| 40 | BK/WH | 451 | Ground |
| 41-42 | - | - | Not Used |
| 43 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
| 44 | - | - | Not Used |
| 45 | WH | 1310 | EVAP Canister Vent Solenoid Control |
| 46 | BN/WH | 419 | MIL Control |
| 47-48 | - | - | Not Used |
| 49 | YE/BK | 1827 | Vehicle Speed Signal |
| 50 | D-GN/WH | 817 | Vehicle Speed Signal |
| 51 | - | - | Not Used |
| 52 | BN | 2391 | HO2S Heater Low Control Bank 1 Sensor 2 (NC1/NC8) |
| 53 | RD/WH | 3223 | HO2S Heater Low Control Bank 2 Sensor 2 (NC1/NC8) |
| 54 | PU | 1589 | Fuel Level Sensor Signal - Primary |
| 55-56 | - | - | Not Used |
| 57 | BK | 552 | Low Reference |
| 58 | TN/WH | 332 | Oil Pressure Sensor Signal |
| 59 | PU | 806 | Crank Voltage |
| 60 | BN | 2129 | Low Reference |
| 61 | BN/WH | 2130 | Low Reference |
| 62-63 | - | - | Not Used |
| 64 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
| 65 | - | - | Not Used |
| 66 | PU/WH | 2128 | IC 8 Control |
| 67 | RD/WH | 2122 | IC 2 Control |
| 68 | D-GN | 2125 | IC 5 Control |
| 69 | L-BU | 2123 | IC 3 Control |
| 70-71 | - | - | Not Used |
| 72 | BK/WH | 3113 | HO2S Heater Low Control Bank 1 Sensor 2 (NC1/NC8) |
| 73 | D-BU | 1936 | Fuel Level Sensor Signal - Secondary |
| 74 | L-GN | 3212 | HO2S Heater Low Control Bank 2 Sensor 1 |
| 75 | GY | 23 | Generator Field Duty Cycle Signal |
| 76-79 | - | - | Not Used |
| 80 | BK | 2751 | Low Reference |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.