If an open circuit is measured there is a break in the wiring or the siren is defective. (check for water ingress), Tilt Rear Y Percent Reserved For Sae Assignment, Rear Z Tilt Percent Accelerometer channel measuring an unrealistic positive g-force. Diesel Oxidation Catalyst (DOC) Inlet Temperature Out Of Range Low Preventing HC Dosing: Aftertreatment 1 Diesel Particulate Filter Intake Gas Temperature Data Valid But Below Normal Operating Range - Least Severe Level; MU_DPF_DIA_DOC_WARM_UP: Relative Humidity Voltage Below Normal, Or Shorted To Low Source; Doc Inlet Temperature not warm up, DOC Temperature Drift - Inlet High or Outlet Low: Aftertreatment 1 Diesel Particulate Filter Intake Gas Temperature Data Drifted High; DOC Inlet Temperature sensor drifted hi, DOC Inlet Temperature Sensor - Plausibility Error: Aftertreatment 1 Diesel Particulate Filter Intake Gas Temperature Data Drifted Low; DOC Inlet Temperature sensor rationality check, DOC Clean-up Fault: Aftertreatment 1 Diesel Particulate Filter Intake Gas Temperature Condition Exists; MU_DPF_DOC_CLN_UP_FAULT. Variable Camshaft Phase, Slow Response: Variable Valve Timing and/or Control (VVT) Abnormal Rate Of Change; Variable Camshaft Phase, Clamb Position: Variable Valve Timing and/or Control (VVT) Mechanical System Not Responding Or Out Of Adjustment; Variable Camshaft Phase Sensor Adaption Fail: Variable Valve Timing and/or Control (VVT) Special Instructions; Variable Camshaft Phase, at State Joggling: Variable Valve Timing and/or Control (VVT) Condition Exists; Generator (Charging System) D+ terminal failure, DEF Dosing Valve Circuit Failed High: Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Voltage Above Normal, Or Shorted To High Source; short circuit to UBatterie on function "am_pwm_urea_valve_dos", DEF Dosing Valve Circuit Failed Low: Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Voltage Below Normal, Or Shorted To Low Source; short circuit to ground on function "am_pwm_urea_valve_dos", DEF Dosing Valve Circuit Failed Open: Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Current Below Normal Or Open Circuit; open load on function "am_pwm_urea_valve_dos", DEF Unit - Unable to clear Restriction: Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Mechanical System Not Responding Or Out Of Adjustment; If preventive partial clog routine doesnt reduce air pressure then log this MU, DEF Metering Unit - Exceeded Unclog Attempts: Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Abnormal Frequency Or Pulse Width Or Period; Detect too frequent clogging of the urea dosing system, MU_LO_DIA_NO_DOS_STANDBY: MU_LO_DIA_NO_DOS_STANDBY; This monitor will be active if DEF system freezes exhaust gas legislation is not fulfilled, Dosing Unit Error: Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Condition Exists; dosing unit defect, DEF Tank Temperature - High: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Data Valid But Above Normal Operational Range - Most Severe Level; coolant valve stuck open, DEF Tank Temperature - Low: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Data Valid But Below Normal Operational Range - Most Severe Level; coolant valve stuck closed, DEF Coolant Valve Circuit Failed High: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Voltage Above Normal, Or Shorted To High Source; short circuit to UBatterie on function "am_pwm_tank_heating", DEF Tank Heater Valve, Circuit Failed Low: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Voltage Below Normal, Or Shorted To Low Source; Urea Tank Heat: Short Cut to Ground, DEF Coolant Valve Circuit Failed Open: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Current Below Normal Or Open Circuit; open load on function "am_pwm_tank_heating", DEF Tank Temperature Too Low: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Mechanical System Not Responding Or Out Of Adjustment; Tank Heating Valve Stuck Closed, No THC heating valve present, but tank heating requested: Ambient Air Temperature Abnormal Frequency Or Pulse Width Or Period; No THC heating valve present, but tank heating requested, DEF Tank Heater Valve, Short-Circuit to Battery or Open Load and DEF Tank Temperature Low: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Data Valid But Below Normal Operating Range - Least Severe Level; Urea tank valve SC_UBATT OR OL and temp low, DEF Tank Temperature Too High: Aftertreatment 1 Diesel Exhaust Fluid Tank Heater Condition Exists; Tank Heating Valve Stuck Open, Improper DEF Quality: Aftertreatment 1 Diesel Exhaust Fluid Tank Quality Data Erratic, Intermittent Or Incorrect; SCR urea quality, Improper DEF Quality - Moderately severe: Aftertreatment 1 Diesel Exhaust Fluid Tank Quality Data Valid But Below Normal Operating Range - Moderately Severe Level; MU_SCR_DIA_UREA_QUAL_DRATE, Intake Throttle Valve, Spring Response Time Not Plausible: Engine Throttle Actuator 1 Control Command Data Erratic, Intermittent Or Incorrect; Spring Response Time Not Plausible, IAT Motor Circuit Shorted to Battery: Engine Throttle Actuator 1 Control Command Voltage Above Normal, Or Shorted To High Source; H Bridge 1: Short Cut Battery, IAT Motor Circuit Shorted to Ground: Engine Throttle Actuator 1 Control Command Voltage Below Normal, Or Shorted To Low Source; H Bridge 1: Short Cut to Ground, IAT Motor Short-Circuit / Over Current: Engine Throttle Actuator 1 Control Command Current Below Normal Or Open Circuit; H Bridge 1: Short Cut Open Load, Intake Throttle Valve, Stuck: Engine Throttle Actuator 1 Control Command Mechanical System Not Responding Or Out Of Adjustment; Stuck, Intake Throttle Valve, Current Deviation too High: Engine Throttle Actuator 1 Control Command Abnormal Frequency Or Pulse Width Or Period; Current Deviation Too High, Intake Throttle Valve, Integrated Absolute Error Plausibility: Engine Throttle Actuator 1 Control Command Special Instructions; Integrated Absolute Error Plausibility, Intake Manifold Pressure too High due to Wastegate: Engine Throttle Actuator 1 Control Command Data Valid But Above Normal Operating Range - Moderately Severe Level; ITV pressure high monitoring, Intake Throttle Valve Plausibility Error: Engine Throttle Actuator 1 Control Command Data Valid But Below Normal Operating Range - Least Severe Level; Intake throttle valve plausibility check, Intake Manifold Pressure too Low in System with Throttle Valve: Engine Throttle Actuator 1 Control Command Data Valid But Below Normal Operating Range - Moderately Severe Level; ITV pressure low monitoring, H Bridge 1 IAT Circuit Open Load: Engine Throttle Actuator 1 Control Command Condition Exists; High Bridge 1 Open Load, Actuator Turbo Compound Bypass Circuit Failed High: Engine Turbocharger Compressor Bypass Actuator 1 Command Voltage Above Normal, Or Shorted To High Source; Short Cut to Battery, Actuator Turbo Compound Bypass Circuit Failed Low: Engine Turbocharger Compressor Bypass Actuator 1 Command Voltage Below Normal, Or Shorted To Low Source; Short Cut to Ground, Actuator Turbo Compound Bypass Circuit Failed Open: Engine Turbocharger Compressor Bypass Actuator 1 Command Current Below Normal Or Open Circuit; Open Load, HC Doser Circuit Failed High: Aftertreatment 1 Fuel Pressure Control Actuator Voltage Above Normal, Or Shorted To High Source; Short Cut to Battery, HC Doser Circuit Failed Low: Aftertreatment 1 Fuel Pressure Control Actuator Voltage Below Normal, Or Shorted To Low Source; Short Cut to Ground, HC Doser Circuit Failed Open: Aftertreatment 1 Fuel Pressure Control Actuator Current Below Normal Or Open Circuit; Open Load, parameter configuration for HC dosing monitoring invalid: FMM_AS_ET_TEST2 Condition Exists; parameter configuration for HC dosing monitoring invalid, HC dosing inhibited by level 2 monitoring: FMM_AS_ET_TEST2 Condition Exists; HC dosing inhibited by level 2 monitoring, Fuel Compensation Pressure High: Aftertreatment 1 Fuel Pressure 1 Data Valid But Above Normal Operational Range - Most Severe Level; HC Doser supply pressure high, Doser Fuel Supply Pressure Abnormal: Aftertreatment 1 Fuel Pressure 1 Data Valid But Below Normal Operational Range - Most Severe Level; HC-doser fuel pressure not plausible, Doser Fuel Line Pressure Low: Aftertreatment 1 Fuel Pressure 1 Data Erratic, Intermittent Or Incorrect; Doser fuel supply pressure out of range, Doser inlet pressure Sensor Circuit Failed High: Aftertreatment 1 Fuel Pressure 1 Voltage Above Normal, Or Shorted To High Source; Low Pressure Fuel System Sensor Circuit High Input, Doser inlet pressure Sensor Circuit Failed Low: Aftertreatment 1 Fuel Pressure 1 Voltage Below Normal, Or Shorted To Low Source; Low Pressure Fuel System Sensor Circuit Low Input, Doser FLP Sensors Failed Self Test: Aftertreatment 1 Fuel Pressure 1 Special Instructions; Fuel pressure sensor plausibility check, Fuel Pressure too High / too Low: Aftertreatment 1 Fuel Pressure 1 Data Valid But Above Normal Operating Range - Moderately Severe Level; Measured value not plausible, Fuel Cut Off Valve Pressure Not Plausible: Aftertreatment 1 Fuel Pressure 1 Data Drifted Low; Fuel cutoff valve pressure failed, Fuel Cut Off Valve Circuit Failed High: Aftertreatment 1 Fuel Enable Actuator Voltage Above Normal, Or Shorted To High Source; Short Cut to Battery, Fuel Cut Off Valve Circuit Failed Low: Aftertreatment 1 Fuel Enable Actuator Voltage Below Normal, Or Shorted To Low Source; Short Cut to Ground, Fuel Cut Off Valve Circuit Failed Open: Aftertreatment 1 Fuel Enable Actuator Current Below Normal Or Open Circuit; Open Load, FCV Failed Self Test: Aftertreatment 1 Fuel Enable Actuator Mechanical System Not Responding Or Out Of Adjustment; Fuel cut-off valve check, DDV Error Detected During Non Regeneration Mode: Aftertreatment 1 Fuel Enable Actuator Data Valid But Below Normal Operating Range - Least Severe Level; DDV error detected during non- regen mode, Reductant Injection Air Pressure Sensor - Circuit Range/Performance, Reductant Injection Air Pressure Sensor - Circuit High.