OBDII Error Codes

P0016 ENGINE SPEED SIGNAL MISMATCH (DIESEL) When Monitored and Set Condition When Monitored: While Engine is running. Set Condition: When the engine speed detected by the Engine Position Sensor (cam) and the Engine Speed Sensor (crank) differ by a specified RPM amount. POSSIBLE CAUSES DAMAGE TO THE ESS OR EPS MECHANICAL MISALIGN

P0071 INLET AIR TEMPERATURE SENSOR RATIONALITY (DIESEL) When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: The ECM does not read a change in value from the sensor over time. POSSIBLE CAUSES INLET AIR TEMPERATURE SENSOR INTERMITTENT CONDITION DIAGNOSTIC PROCEDURE &

P0072 INLET AIR TEMP SENSOR VOLTAGE TOO LOW (DIESEL) When Monitored and Set Condition: When Monitored: With the ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM falls below a calibrated threshold for a certain period of time. POSSIBLE CAUSES SENSOR OUT OF SPEC INTERMITTENT CONDITION&

P0073 INLET AIR TEMP SENSOR VOLTAGE TOO HIGH When Monitored and Set Condition: When Monitored: With ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM is above a calibrated threshold for a certain period of time. POSSIBLE CAUSES DTC RETURNS INLET AIR TEMPERATURE SENSOR

P0088 FUEL RAIL PRESSURE SIGNAL IS ABOVE MAX LIMIT When Monitored and Set Condition: When Monitored: Engine running. Set Condition: Fuel pressure is above a calibrated value for a calibrated amount of time. POSSIBLE CAUSES FUEL CONTROL ACTUATOR (FCA) FUEL PRESSURE SENSOR INTERMITTENT CONDITION &#

P0106 INLET AIR PRESSURE SENSOR RATIONALITY When Monitored and Set Condition: When Monitored: When the ignition is on. Set Condition: The Inlet air pressure is above a calibrated threshold. POSSIBLE CAUSES INLET AIR PRESSURE SENSOR INTERMITTENT CONDITION TROUBLESHOOT OTHER DTC'S FIRST DIAGNOSTIC PROCEDURE

P0107 INLET AIR PRESSURE SENSOR VOLTAGE TOO LOW When Monitored and Set Condition: When Monitored: With the ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM falls below a calibrated threshold for a certain period of time. POSSIBLE CAUSES OTHER DTC'S PRESENT INLET AIR PRESSURE SENSOR&#

P0108 INLET AIR PRESSURE SENSOR VOLTAGE TOO HIGH When Monitored and Set Condition: When Monitored: With the ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM is above a calibrated threshold for a certain period of time. POSSIBLE CAUSES OTHER DTC'S PRESENT INLET AIR PRESSURE SENSOR

P0111 INTAKE AIR TEMPERATURE (IAT) SENSOR RATIONALITY When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: The ECM does not read a change in value from the sensor over time. POSSIBLE CAUSES FAILED IAT SENSOR INTERMITTENT CONDITION DIAGNOSTIC PROCEDURE NOTE: Refer to VERIFICA

P0112 INTAKE AIR TEMPERATURE (IAT) SENSOR VOLTAGE TOO LOW When Monitored and Set Condition: When Monitored: With the ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM falls below a calibrated threshold for a certain period of time. POSSIBLE CAUSES INTAKE AIR TEMP SENSOR OUT OF SPEC IN

P0113 INTAKE AIR TEMPERATURE (IAT) SENSOR VOLTAGE TOO HIGH When Monitored and Set Condition: When Monitored: With ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM is above a calibrated threshold for a certain period of time. POSSIBLE CAUSES FAILED SENSOR INTERMITTENT CONDITION

P0116 ENGINE COOLANT TEMPERATURE (ECT) SENSOR RATIONALITY When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: The ECM does not read a change in value from the sensor over time. POSSIBLE CAUSES LOW COOLANT LEVEL COOLANT TEMPERATURE SENSOR THERMOSTAT

P0117 ENGINE COOLANT TEMPERATURE (ECT) SENSOR VOLTAGE TOO LOW When Monitored and Set Condition: When Monitored: With ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM falls below a calibrated threshold for a certain period of time. POSSIBLE CAUSES COOLANT TEMPERATURE SENSOR INTERMITTE

P0118 ENGINE COOLANT TEMPERATURE (ECT) SENSOR VOLTAGE TOO HIGH When Monitored and Set Condition: When Monitored: With ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM is above a calibrated threshold for a certain period of time. POSSIBLE CAUSES COOLANT TEMPERATURE SENSOR INTERMITTENT

P0122 TPS/APPS LOW When Monitored and Set Condition: When Monitored: Continuously with the ignition on and engine running. Set Condition: This DTC will set if the monitored TPS voltage drops below .078 volts for the period of 0.48 seconds. POSSIBLE CAUSES RELATED TPS ENGINE DTC'S PRESENT POWERTRAIN CONTROL MODULE

P0123 TPS/APPS HIGH When Monitored and Set Condition: When Monitored: Continuously with the ignition on and engine running. Set Condition: This DTC will set if the monitored TPS voltage rises above 4.94 volts for the period of 0.48 seconds. POSSIBLE CAUSES RELATED TPS ENGINE DTC'S PRESENT POWERTRAIN CONTROL MODULE

P0124 TPS/APPS INTERMITTENT When Monitored and Set Condition: When Monitored: Continuously with the ignition on and engine running. Set Condition: This DTC will set if the monitored TPS throttle angle between the angles of 6° and 120° and the degree change is greater than 5° within a period of less than 7.0 ms. POSSIBLE CAUSES RELATED TPS ENGINE DTC'S PRESENT&#

P0128 THERMOSTAT RATIONALITY When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: The coolant temperature does not rise by a calibrated amount over a calibrated amount of time. POSSIBLE CAUSES COOLING FAN COOLANT TEMPERATURE SENSOR THERMOSTAT DIAGN

P0148 HIGH PRESSURE COMMON RAIL (HPCR) CHECKSUM When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: A deviation between the fuel pressure set point and the actual fuel pressure. POSSIBLE CAUSES OTHERS DTC'S PRESENT FUEL LEAKS FUEL CONTROL ACTUATOR

P0169 WATER IN FUEL (WIF) LIGHT ON TOO LONG When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: Water in fuel light was on for a calibrated amount of time. POSSIBLE CAUSES OTHER DTCS PRESENT WATER IN FUEL DIAGNOSTIC PROCEDURE NOTE: Refer to VERIFICATION TESTS for appropriat

P0192 FUEL PRESSURE SENSOR VOLTAGE TOO LOW When Monitored and Set Condition: When Monitored: With the ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM falls below a calibrated threshold for a certain period of time. POSSIBLE CAUSES OTHER DTC'S FUEL PRESSURE SENSOR

P0193 FUEL PRESSURE SENSOR VOLTAGE TOO HIGH When Monitored and Set Condition: When Monitored: With the ignition on and battery voltage greater than 10.4 volts. Set Condition: The circuit voltage to the ECM is above a calibrated threshold for a certain period of time. POSSIBLE CAUSES OTHER DTC'S FUEL PRESSURE SENSOR

P0201 INJECTOR #1 CONTROL CIRCUIT NOTE: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0201-INJECTOR #1 CONTROL CIRCUIT. When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: When the injector current falls below a calibrated threshold. POSSIBLE CAUSES

P0202 INJECTOR #2 CONTROL CIRCUIT NOTE: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0202-INJECTOR #2 CONTROL CIRCUIT. When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: When the injector current falls below a calibrated threshold. POSSIBLE CAUSES

P0203 INJECTOR #3 CONTROL CIRCUIT NOTE: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0203-INJECTOR #3 CONTROL CIRCUIT. When Monitored and Set Condition: When Monitored: While the engine is running. Set Condition: When the injector current falls below a calibrated threshold. POSSIBLE CAUSES