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 MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISDATA COMMUNICATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC U1875DIAGNOSTIC FAULT INFORMATION
2013 Buick Regal Turbo Premium, Standard Trans
Diagnostic Fault Information
2013 Buick Regal Turbo Premium, Standard TransSECTION Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U1875* | U1875 | - | - |
| Ignition | U1814, U1875* | U1875* | - | - |
| High Speed GMLAN Serial Data (+) | U0073* | U0073, U1875* | U0073* | - |
| High Speed GMLAN Serial Data (-) | U0073* | U0073, U1875* | U0073* | - |
| Ground | - | U1875* | - | - |
| * Other modules/DTCs may set with this fault and multiple symptoms including a no start condition may occur. | ||||
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.