Aftertreatment Fuel Drain Valve – Data Erratic, Intermittent, or Incorrect. VGT Actuator Driver Circuit – Abnormal Update Rate. The ECM expected information from a multiplexed accelerator pedal or lever sensor but did not receive it soon enough or did not receive it at all. “As you slow the engine down, you have less frictional losses, and you have the ability to keep it in more of a fuel efficient range, burning less fuel. Aftertreatment 1 SCR Feedback Control Status – Mechanical System Not Responding or Out of Adjustment. The front face of the aftertreatment diesel oxidation catalyst has been detected to be plugged with soot. Low voltage detected at the intake manifold temperature circuit. Starter Relay Driver Circuit – Voltage Below Normal, or Shorted to Low Source. Propulsion System Active – Root Cause Not Known. Crankcase Pressure – Data Valid but Above Normal Operational Range – Most Severe Level. Intake Manifold 1 Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level. The aftertreatment SCR intermediate temperature sensor reading is above the engine protection limit. High voltage detected at the OEM pressure sensor signal pin. 1239 Accelerator Pedal or Lever Position Sensor 2 Circuit - Voltage Above Normal, or Shorted to High Source Camshaft engine speed sensor intermittent synchronization. Measure resistance between. High current detected at rear timing actuator circuit. This filter traps particulate matter (also called “soot”) created by the engine. EGR Valve Control Circuit – Voltage Below Normal, or Shorted to Low Source. Aftertreatment Exhaust Gas Temperature 1 Circuit – Voltage Below Normal, or Shorted to Low Source. We neared two engines perched side by side at the end of the hall: one smaller, in a mostly finished state, sporting the signature Cummins red; the other a beast of a big-bore block tangled in electrical wires. The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits. The OEM vehicle electronic control unit (VECU) detected a fault with its accelerator pedal. Engine Fuel Temperature Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage or open circuit detected at the ether start solenoid circuit. Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal, or Shorted to High Source. EGR Valve Control Circuit – Mechanical System Not Responding Properly or Out of Adjustment. The X15, which Brett Merrit, vice president of Cummins’ on-highway engine business says was the number one selling heavy-duty engine in North America last year, features a 50,000 mile oil drain interval that can be extended up to 80,000 through the Cummins OilGuard program. Supply voltage to the ECM fell below 6.2 volts momentarily, or the ECM was not allowed to power down correctly (retain battery voltage for 30 seconds after key OFF). Very low battery voltage detected by the battery voltage monitor feature. The engine intake air throttle actuator has failed the auto zero span check. Engine Speed – Root Cause Not Known. Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source. 3. Voltage detected on the idle shutdown vehicle accessory/ignition bus relay circuit when no voltage was being supplied by the ECM or an open circuit was detected. Fuel shutoff valve is stuck open mechanically or leaking. Aftertreatment Diesel Exhaust Fluid Dosing Unit Heater – Voltage below normal, or shorted to low source. Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor – Abnormal Rate of Change. The ground for these sensors and MANY others is also located in the Orange C2 plug (second from the top on your PCM) pin #27. Critical fault codes related to engine operation are active. Fuel Control Valve Solenoid Driver 2 Circuit – Condition Exists. Sensor Supply 4 Circuit – Voltage Below Normal, or Shorted to Low Source. Less than (+) 6 VDC detected at fuel shutoff circuit or an excessive current draw from the electronic control module (ECM) or faulty ECM output circuit. Last Friday I shut the motor off with the stop … Unexpected high fueling detected on the front bank. Low voltage detected at the engine brake solenoid Number 3 signal circuit. Fan will stay ON if controlled by the ECM. High battery supply voltage detected at the aftertreatment SCR temperature sensor module. Engine Fuel Injection Quantity Error for Multiple Cylinders – Condition Exists. Loss of signal from primary camshaft engine position sensor. The Incorrect SCR system has been Installed. Engine Particulate Filter Inlet Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level. Engine Coolant Temperature 1 Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Our unmatched facility is backed by four 1250 Kw generator sets, and uses Cummins fully integrated systems and controls for autonomous 24/7 functionality. Low fuel pressure has been detected in the aftertreatment fuel system. Low voltage detected at the engine brake solenoid Number 2 signal circuit. Low voltage detected on the +5 volt sensor supply circuit to the engine speed sensor. Sensor Supply 1 Circuit – Voltage Below Normal, or Shorted to Low Source. The accelerator pedal position sensor reading is out of range. All Yes ! Current detected at injector Number 1 when voltage is turned off. Intake Manifold 1 Temperature – Data Valid but Above normal Operational Range – Most Severe Level. A frequency greater than calibrated threshold was detected at the tailshaft governor signal pin of the 31-pin connector. Engine Crankshaft Speed/Position – Data Valid but Above Normal Operational Range – Most Severe Level. Communication between the electronic control module (ECM) and another device on the SAE J1939 data link has been lost. The Cummins ISL9 is used by medium duty trucks, RVs, motorhomes, fire trucks, emergency vehicles, and much more. Sensor Supply 3 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at ambient air temperature circuit. The more diesel power plants sitting on dealer lots, the less likely someone is to identify the engine manufacturer and more likely they are to identify the type of engine. Sensor Supply 4 Circuit – Voltage Above Normal, or Shorted to High Source. High exhaust gas pressure has been detected by the exhaust gas pressure sensor. Are there lost communication DTCs present against All of the components listed in the note above? “And Cummins works continuously to make diesels cleaner than they’ve ever been. There are 251 fault codes for this engine line. Could this be part of Fiat’s grand plan (Fiat acquired Chrysler in 2009)? Aftertreatment Exhaust Gas Temperature 1 Swapped – Condition Exists. Possible white smoke. This would be end up being the most popular engine at the turn of the millennium. Aftertreatment Fuel Shutoff Valve 1 Circuit – Voltage Above Normal, or Shorted to High Source. Auxiliary speed frequency on input pin indicates the frequency is below a calibration-dependent threshold. Unexpected high fueling detected on the rear bank. CORRECTIVE ACTION. When ignition timing is retarded you may notice an increase in fuel consumption, a drop in engine power, and poor acceleration. It will start normal and sometimes there will be a sudden power loss while I am driving and I cannot pick up speed even If I press the gas pedal all the way down. Open circuit or high voltage detected at the fan control circuit. Low voltage detected at water-in-fuel (WIF) sensor circuit. Low signal voltage detected at the fuel lift pump circuit. The engine is unable to meet the air handling system commands. Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Below Normal, or Shorted to Low Source. An internal circuit error has been detected by the aftertreatment particulate matter sensor. The electronic control module (ECM) has detected that the primary and backup speed sensor signals are connected backwards. Intake Manifold 1 Pressure – Data Erratic, Intermittent, or Incorrect. Electrical Charging System Voltage – Data Valid But Above Normal Operating Range – Moderately Severe Level. Engine Injector Metering Rail 1 Cranking Pressure – Data Valid But Below Normal Operating Range – Moderately Severe Level. Aftertreatment 1 Particulate Sensor Module Battery Voltage Supply – Data Erratic, Intermittent, or Incorrect. Turbocharger speed calculation indicates turbocharger speed is above the engine protection warning limit. Aftertreatment Diesel Exhaust Fluid Tank Temperature – Abnormal Update Rate. The aftertreatment particulate sensor was unable to enter measurement mode. The aftertreatment regeneration permit switch is stuck in the OFF or INHIBIT position. Aftertreatment Diesel Exhaust Fluid Dosing Temperature – Data erratic, intermittent or incorrect. The ECM expected information from a multiplexed device but only received a portion of the necessary information. In many cases, delayed power to these systems is routed through the PCM, and testing the PCM’s power supply before all relevant controllers are deactivated could result in misleading, incorrect, or confusing readings. High signal voltage detected at ambient air temperature circuit. Injector Metering Rail 2 Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level. The ambient air pressure sensor is reading an erratic value at initial key-on. Ambient Air Density – Data Valid but Below Normal Operational Range – Least Severe Level. Engine Brake Actuator Driver Output 3 Circuit – Voltage Above Normal, or Shorted to High Source. The aftertreatment fuel shutoff valve has been detected to be stuck closed. High signal voltage detected at the aftreatment SCR intermediate temperature sensor circuit. “Two things to focus on: the hydrogen refueling network and EV recharging network,” wrote Burrell. TEST OR INSPECTION. High battery supply voltage detected at the aftertreatment diesel particulate filter temperature sensor module. Are there lost communication DTCs present against All of the components listed in the note above? The aftertreatment diesel oxidation catalyst inlet temperature sensor is not changing with engine operating conditions. Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source. 15 0 1. Starter Relay Driver Circuit – Voltage Above Normal or Shorted to High Source. Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature 1 Circuit- Voltage Above Normal or Shorted to High Source. 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