Engine Coolant Overtemperature Air Conditioning Disabled
Table of contents
P1536 BUICK Possible Causes
- Faulty Engine Coolant Temperature Sensor
- Engine Coolant Temperature Sensor harness is open or shorted
- Engine Coolant Temperature Sensor circuit poor electrical connection
How do I fix code P1536 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 P1536 BUICK code
The cost of diagnosing the P1536 BUICK 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)
P1536 BUICK Description
The A/C compressor requested by HVAC controller, the Powertrain Control Module (PCM) detects the Engine Coolant Temperature (ECT) input was over 257°F, or with A/C compressor operation requested or not requested by the HVAC controller, the ECT input was over 248°F.