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 MANUALSCHEVROLET1999SUBURBAN C2500, 6.5 FREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDATA LINK COMMUNICATION DTCS
1999 Chevrolet Suburban C2500, 6.5 F
Data Link Communication DTCS
1999 Chevrolet Suburban C2500, 6.5 FSECTION Data Link Communication DTCS
DATA LINK COMMUNICATION DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| U1016 | LOSS OF COMMUNICATIONS WITH PCM/VCM |
| U1026 | LOSS OF TRANSFER CASE SHIFT CONTROL MODULE CLASS 2 COMMUNICATION |
| U1041 | LOSS OF EBCM COMMUNICATION |
| U1192 | LOSS OF EVO/PASSLOCK CLASS 2 COMMUNICATION |
| U1255 | SERIAL DATA LINE MALFUNCTION |
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.