P1117 GMC Engine Coolant Temp. Signal Out-Of-Range Low

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1117 GMC OBD Code Description The Engine Coolant…

P1118 GMC Engine Coolant Temp. Signal Out-Of-Range High

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1118 GMC OBD Code Description The Engine Coolant…

P1119 GMC Engine Coolant Temperature Signal Out Of Rage

Possible causes – Faulty Engine Coolant Temperature Sensor– Engine Coolant Temperature Sensor harness is open or shorted– Engine Coolant Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1119 GMC OBD Code Description The Engine Coolant Temperature (ECT) sensor contains a semiconductor device which changes resistance based…

P1189 GMC Engine Oil Pressure Switch Fault

Possible causes – Faulty Engine Oil Pressure Switch– Engine Oil Pressure Switch harness is open or shorted– Engine Oil Pressure Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1189 GMC OBD Code Description The low oil pressure sensor is normally closed. When oil pressure increases above 1…

P1441 GMC EVAP System Flow During Non-Purge Condition

Possible causes – Faulty EVAP canister purge solenoid– Faulty Fuel Tank Pressure (FTP) sensor When is the obd code mean? The Powertrain Control Module (PCM) has detected vacuum flow to the Fuel Tank Pressure (FTP) sensor during a system sealed condition. Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Possible a noticeable…

U0104 GMC Lost Communication With Distance Sensing and Cruise Control Module

Possible causes – Faulty Distance Sensing and Cruise Control (DSCC) Module– DSCC Module harness is open or shorted– DSCC Module circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0104 GMC OBD Code Description Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits…

U0181 GMC Lost Communication With Dynamic Headlamp Leveling Control Module

Possible causes – Faulty Dynamic Headlamp Leveling (DHL) Control Module– DHL Control Module harness is open or shorted– DHL Control Module circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0181 GMC OBD Code Description Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data…

P0405 GMC Exhaust Gas Recirculation Position Sensor Circuit Low Voltage

Possible causes – Faulty EGR volume control solenoid valve– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical connection– EGR temperature sensor and circuit When is the obd code mean? An improper voltage signal is sent to Powertrain Control Module (PCM) through the valve Symptoms –…

P2135 GMC Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation

Possible causes – Faulty electric throttle control actuator (TP sensor 1 and 2)– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor connection– Faulty accelerator pedal position sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2135 GMC OBD Code Description