Category: Chevrolet

P0538 Chevrolet A/C Evaporator Temperature Circuit High Input Possible causes – Faulty A/C Evaporator Temperature Sensor– A/C Evaporator Temperature Sensor harness is open or shorted– A/C Evaporator Temperature Sensor circuit poor electrical connection What about the obd code? When the A/C Evaporator Temperature (ACET) sensor signal is high the Powertrain Control Module (PCM) will triggered…

P0539 Chevrolet A/C Evaporator Temperature Circuit Intermittent Possible causes – Faulty A/C Evaporator Temperature Sensor– A/C Evaporator Temperature Sensor harness is open or shorted– A/C Evaporator Temperature Sensor circuit poor electrical connection What about the obd code? When the A/C Evaporator Temperature (ACET) sensor signal is intermittent the Powertrain Control Module (PCM) will triggered the…

P0534 Chevrolet Air Conditioning (A/C) Refrigerant Charge Loss Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection What about the obd code? The ECM has detected that the AC…

P0535 Chevrolet A/C Evaporator Temperature Sensor Circuit Possible causes – Faulty Evaporator Temperature sensor– A/C evaporator temperature sensor harness is open or short– A/C evaporator temperature sensor circuit poor electrical connection What about the obd code? The Powertrain Control Moduel (PCM) has detected a fault in the temperature sensor circuit Symptoms – Engine Light ON…

P0536 Chevrolet A/C Evaporator Temperature Circuit Range/Performance Possible causes – Faulty A/C Evaporator Temperature Sensor– A/C Evaporator Temperature Sensor harness is open or shorted– A/C Evaporator Temperature Sensor circuit poor electrical connection What about the obd code? When the A/C Evaporator Temperature (ACET) sensor signal is out of range the Powertrain Control Module (PCM) will…

P0537 Chevrolet A/C Evaporator Temperature Circuit Low Input Possible causes – Faulty A/C Evaporator Temperature Sensor– A/C Evaporator Temperature Sensor harness is open or shorted– A/C Evaporator Temperature Sensor circuit poor electrical connection What about the obd code? When the A/C Evaporator Temperature (ACET) sensor signal is low the Powertrain Control Module (PCM) will triggered…

P0530 Chevrolet Air Conditioning Refrigerant Pressure Sensor Circuit Possible causes – A/C system low or over charged with refrigerant– Faulty A/C Refrigerant Pressure Sensor– Cooling fans in-operative– A/C Refrigerant Pressure Sensor harness is open or shorted– A/C Refrigerant Pressure Sensor circuit poor electrical connection What about the obd code? The P0530 Chevrolet code is detected…

P0531 Chevrolet Air Conditioning (A/C) Refrigerant Pressure (Sensor A) Circuit Range / Performance Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection What about the obd code? The P0531…

P0532 Chevrolet Air Conditioning (A/C) Refrigerant Pressure (Sensor A) Circuit Low Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection What about the obd code? The P0532 Chevrolet code…

P0533 Chevrolet A/C Refrigerant Pressure Sensor Circuit High Input Possible causes – A/C system low or over charge with refrigerant– Faulty A/C refrigerant pressure sensor– Cooling fans in-operative– A/C refrigerant pressure sensor circuit open or shorted– A/C refrigerant pressure sensor circuit poor electrical connection What about the obd code? The P0533 Chevrolet code is detected…

P0529 Chevrolet Fan Speed Sensor Circuit Intermittent OBD Code: System: Subsystem:  P0529 Chevrolet – (ASE)  Powertrain  Vehicle Speed Control, Idle Controls, and Auxiliary Inputs Trouble Code Description: Fan Speed Sensor Circuit Intermittent Location: Analysis: Possible Causes:    Circuit Sporatic / Not Continuous   Tech description:

P0524 Chevrolet Engine Oil Pressure Sensor/Switch Circuit Possible causes – Low oil level or motor mechanical fault– Faulty Oil Pressure sensor– Oil Pressure Sensor harness is open or shorted– Oil Pressure Sensor circuit poor electrical connection What about the obd code? The P0524 Chevrolet is detected when the circuit from oil pressure sensor to PCM…

P0525 Chevrolet Cruise Control Servo Control Circuit Range/Performance Possible causes – Cruise control servo control poor electrical connection– Faulty cruise control servo Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0526 Chevrolet Cooling Fan Speed Sensor Circuit Possible causes – Cooling fan harness and connector– Faulty cooling fan What about the obd code? The P0526 Chevrolet code is detected when the PCM has detected a loss of cooling fan speed signal and the condition is present for at least 11 seconds. Symptoms – Engine Light…

P0527 Chevrolet Fan Speed Sensor Circuit Range / Performance OBD Code: System: Subsystem:  P0527 Chevrolet – (ASE)  Powertrain  Vehicle Speed Control, Idle Controls, and Auxiliary Inputs Trouble Code Description: Fan Speed Sensor Circuit Range / Performance Location: Analysis: Possible Causes:    Out of Expected Range   Tech description:

P0528 Chevrolet Fan Speed Sensor Circuit No Signal Possible causes – Faulty Fan Speed Sensor– Fan Speed Sensor harness is open or shorted– Fan Speed Sensor circuit poor electrical connection– Faulty fan clutch– Faulty PCM Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine overheating P0528 Chevrolet Description The PCM has detected…

P0519 Chevrolet Idle Control System Malfunction Possible causes – Faulty Idle Air Control Valve– Vacuum leak– Idle Air Control Valve harness is open or shorted– Idle Air Control Valve circuit poor electrical connection Tech description Clean Idle Air Control Valve (IACV) – Warm up Engine– Remove the intercooler and set aside– Disconnect the Mass Airflow…