GM Service Manual Online
For 1990-2009 cars only

Description

Module

DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

PCM

DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

PCM

DTC P0480 Cooling Fan Relay 1 Control Circuit

PCM

DTC P0481 Cooling Fan Relay 2 and 3 Control Circuit

PCM

DTC P0530 Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

PCM

DTC P0645 Air Conditioning (A/C) Clutch Relay Control Circuit

PCM

DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage

PCM

DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage

PCM

DTC P1539 Air Conditioning (A/C) Clutch Feedback Circuit High Voltage

PCM

DTC P1546 Air Conditioning (A/C) Clutch Feedback Circuit Low Voltage

PCM

DTC P1635 5 Volt Reference 1 Circuit

PCM