HO2S Bank 1 Sensor 3 Lean System or Low Voltage
Table of contents
P1143 GMC Possible Causes
- Faulty Oxygen Sensor Bank 1
- Oxygen Sensor Bank 1 harness is open or shorted
- Oxygen Sensor Bank 1 circuit poor electrical connection
How do I fix code P1143 GMC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1143 GMC code
The cost of diagnosing the P1143 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1143 GMC Description
HO2S Bank 1 Sensor 3 Lean System or Low Voltage is the generic description for the P1143 Gmc code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information about the P1143 Gmc OBDII code.Still have questions? Please post your question on our Comments Section below for more information.