Engine-Codes - Buick - P1143 BUICK

P1143 BUICK - HO2S Bank 1 Sensor 3 Lean Or Low Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?

P1143 BUICK 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 BUICK

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 BUICK code

Labor: 1.0

The cost of diagnosing the P1143 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1143 BUICK Meaning

HO2S Bank 1 Sensor 3 Lean Or Low Voltage is the generic description for the P1143 Buick code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1143 Buick OBDII code.

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P1143 BUICK More Information

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