P1531 Code - A/C Low Side Temperature Sensor Fault
Quick Answer
The Heating, Ventilation, and Air Conditioning (HVAC) Control Module monitors the evaporator temperature via the evaporator temperature sensor. Common causes include 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. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1531 indicates A/C Low Side Temperature Sensor Fault.
- Common causes
- Common causes include 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.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1531 Description
What are the Possible Causes of the DTC P1531?
- 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
How to Fix the DTC P1531?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1531 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1531 code?
Need more information on how to fix the P1531 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1531 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1531 Audi — Intake Camshaft Control Circuit Open Circuit
- P1531 BMW — Camshaft Position Actuator 'B' Control Open Circuit Bank 1
- P1531 Buick — A/C Low Side Temperature Sensor Fault
- P1531 Cadillac — A/C Low Side Temperature Sensor Fault
- P1531 Chevrolet — A/C Low Side Temperature Sensor Fault
- P1531 Ford — Invalid Test Accelerator Pedal Movement
- P1531 GMC — A/C Low Side Temperature Sensor Fault
- P1531 MINI — Camshaft Position Actuator 'B' Control Open Circuit Bank 1
- P1531 Saab — Accelerator Pedal Position Sensor 1 & 2 Adapted Value Out Of Range
- P1531 Volkswagen — Intake Camshaft Control Circuit Open Circuit
Frequently Asked Questions about P1531 Code
No Frequently Asked Questions about P1531 Code found.
Discuss the causes and fixes for P1531 OBDII Code
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my Nissan dualis ac is not responding or cooling, ac compressor not turning on
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Start by checking if there is refrigerant inside the A/C system. Have an A/C shop evacuate and recharge the system.
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