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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 812 (DATA LINK COMMUNICATIONS)COMPONENT LOCATORDATA LINK COMMUNICATIONS CONNECTOR END VIEWS
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8
Data Link Communications Connector End Views
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Data Link Communications Connector End Views
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Data Link Connector (DLC)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit Number | Function |
| 1 | - | - | Not Used |
| 2 | PU | 1807 | Class 2 Serial Data |
| 3 | - | - | Not Used |
| 4 | BK | 550 | Ground |
| 5 | BK/WH | 151 | Ground |
| 6 | - | - | Not Used |
| 7 | BN/WH | 2960 | Keyword Serial Data |
| 8-11 | - | - | Not Used |
| 12 | BN/WH | 2960 | Keyword Serial Data (w/ L81) |
| 12 | WH/BK | 5043 | Keyword Serial Data (w/ L61) |
| 13-15 | - | - | Not Used |
| 16 | OG | 2140 | Battery Positive Voltage |
RENDER: 1.0x
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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.