P1531 BUICK - A/C Low Side Temperature Sensor Fault

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3  What does this mean?

P1531 BUICK Possible Causes

  • Faulty A/C Low Side Temperature Sensor
  • A/C Low Side Temperature Sensor harness is open or shorted
  • A/C Low Side Temperature Sensor circuit poor electrical connection

First diagnose P1531 BUICK code

    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 terminals.

Cost of diagnosing the P1531 BUICK code

    Labor: 1.0

    The cost of diagnosing the P1531 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.

P1531 BUICK Possible Symptoms

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

P1531 BUICK Meaning

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module monitors the evaporator temperature via the evaporator temperature sensor. When the air is cold, the sensor resistance and signal voltage are high. When the air is warm, the sensor resistance and signal are low.
OBDII Code P1531 BUICK - A/C Low Side Temperature Sensor Fault - Engine-Codes.com

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