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P1531 Cadillac Code - A/C Low Side Temperature Sensor Fault

- Code Popularity: 6,816 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1531 Cadillac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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
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How to Fix the DTC P1531 Cadillac?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1531 Cadillac code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P1531 Cadillac Description

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 Cadillac - A/C Low Side Temperature Sensor Fault - AutoCodes.com
P1531 Cadillac Code - A/C Low Side Temperature Sensor Fault

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Code P1531 Cadillac comments

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