Category: OBDii Powertrain Codes

P1116 Engine Coolant Temperature Sensor Performance Problem 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) P1116…

P1107 Manifold Differential Pressure Sensor Low Input Possible causes – Faulty Manifold Absolute Pressure (MAP) sensor– Manifold Absolute Pressure (MAP) sensor harness is open or shorted– Manifold Absolute Pressure (MAP) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1107 Description The Manifold Absolute Pressure (MAP) sensor provides…

P1108 Manifold Differential Pressure Sensor High Input Possible causes – Faulty Manifold Absolute Pressure (MAP) sensor– Manifold Absolute Pressure (MAP) sensor harness is open or shorted– Manifold Absolute Pressure (MAP) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1108 Description The Manifold Absolute Pressure (MAP) sensor provides…

P1109 HO2S22 Sensor Circuit Voltage Too Low Air Leak Possible causes – Faulty HO2S22 Sensor– HO2S22 Sensor harness is open or shorted– HO2S22 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1110 HO2S Heating Circuit Bank 2 Sensor 2 Short To Positive Possible causes – Faulty HO2S Heating Circuit Bank 2 Sensor 2– HO2S Heating Circuit Bank 2 Sensor 2 harness is open or shorted– HO2S Heating Circuit Bank 2 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning…

P1111 Intake Valve Timing Control Solenoid Valve Circuit Bank 1 Possible causes – Faulty Intake Valve Timing Control Solenoid Valve Bank 1– Intake Valve Timing Control Solenoid Valve Bank 1 harness is open or shorted– Intake Valve Timing Control Solenoid Valve Bank 1 circuit poor electrical connection Tech description Since the Intake valve timing control…

P1112 Intake Air Temperature Sensor Circuit Intermittent Low Voltage Possible causes – Faulty Intake Air Temperature Sensor– Intake Air Temperature Sensor harness is open or shorted– Intake Air Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1112 Description The Intake Air Temperature (IAT) sensor is built…

P1113 HO2S Sensor Heater Resistance Too High Bank 1 Sensor 1 Possible causes – Faulty HO2 Sensor Bank 1 Sensor 1– HO2 Sensor Bank 1 Sensor 1 harness is open or shorted– HO2 Sensor Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1102 HO2S Heating Circuit Bank 1 Sensor 1 Short to B+ Possible causes – Faulty Mass Air Flow Sensor– Air leak before or after sensor– Mass Air Flow Sensor harness is open or shorted– Mass Air Flow Sensor circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) detected a Mass…

P1103 HO2S Heating Circuit Bank 1 Sensor 1 Voltage Too Low Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1– HO2S Bank 1 Sensor 1 blown fuse– HO2S Bank 1 Sensor 1 harness is open or shorted– HO2S Bank 1 Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or…

P1104 HO2S12 Sensor Circuit Voltage Too Low Air Leak Possible causes – Faulty HO2S12 Sensor– Exhaust leak near HO2S12 Sensor– HO2S12 Sensor harness is open or shorted– HO2S12 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1105 HO2S Heating Circuit Bank 1 Sensor 2 Short To Positive Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2– HO2S Bank 1 Sensor 2 blown fuse– HO2S Bank 1 Sensor 2 harness is open or shorted– HO2S Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or…

P1106 Manifold Absolute Pressure Sensor Short Circuit Intermittent High Input Possible causes – Faulty Manifold Absolute Pressure (MAP) sensor– Manifold Absolute Pressure (MAP) sensor harness is open or shorted– Manifold Absolute Pressure (MAP) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine rough idle– Engine hesitation P1106…

P1101 HO2S11 Sensor Circuit Voltage Too Low Air Leak Possible causes – Faulty Mass Air Flow Sensor– Air leak before or after sensor– Mass Air Flow Sensor harness is open or shorted– Mass Air Flow Sensor circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) detected a Mass Air Flow…

P1093 Tumble Generator Valve #2 Malfunction Stuck Close Possible causes – Faulty Tumble Generator Position Sensor– Tumble Generator Position Sensor harness is open or shorted– Tumble Generator Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1093 Description Tumble generator valve #2 (LH) malfunction (stuck close)

P1094 Tumble Generator Valve Circuit #1 Open Circuit Possible causes – Faulty Tumble Generator Position Sensor– Tumble Generator Position Sensor harness is open or shorted– Tumble Generator Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1095 Tumble Generator Valve Circuit #1 Over Current Possible causes – Faulty Tumble Generator Position Sensor– Tumble Generator Position Sensor harness is open or shorted– Tumble Generator Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1096 Tumble Generator Valve Circuit #2 Open Circuit Possible causes – Faulty Tumble Generator Position Sensor– Tumble Generator Position Sensor harness is open or shorted– Tumble Generator Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1097 Tumble Generator Valve Circuit #2 Over Current Possible causes – Faulty Tumble Generator Position Sensor– Tumble Generator Position Sensor harness is open or shorted– Tumble Generator Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1098 O2 Sensor Circuit Slow Response after Coast Down Fuel Cutoff Bank 2 Sensor 2 Possible causes – Faulty O2 Sensor Bank 2 Sensor 2– O2 Sensor Bank 2 Sensor 2 harness is open or shorted– O2 Sensor Bank 2 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon…