P1536 OBD Trouble Code

1 result found

P1536 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

A/C System, ECT Sensor Over-Temperature Conditions

Cause

DTC P0117 and P0118 not set, A/C compressor requested by HVAC controller, then the PCM detected the 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

Try also: https://www.obd-codes.com/p1536