Monitoring System
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420E and 430E Backhoe Loaders
[SEBU8342]
420E and 430E Backhoe Loaders
Tire Shipping Pressure
420E and 430E Backhoe Loaders
Maintenance Interval Schedule
OPERATOR STATION
MONITOR GP
420E, 430E, 432E, 434E, 442E and 444E Backhoe Loaders
Monitoring System
420E and 430E Backhoe Loaders
Monitoring System
The ECM is used for the control system. Based on engine parameters, the control system signals the pump to deliver the proper amount of Diesel Exhaust Fluid (DEF) to the exhaust stream.
The engine aftertreatment system utilizes sensors to monitor operating conditions and to provide input and feedback for the dosing control system. Included sensors are temperature, pressure differential, and NOx. The temperature sensor provides temperature feedback to the dosing control system. The dosing does not start before the catalytic converter has reached the required temperature for the reaction. The delta pressure sensor monitors the back pressure and is used as a diagnostic for DOC substrate blockage. The NOx sensor detects NOx levels and provides closed loop feedback to the control system. The control system adjusts the flow of DEF delivered to the exhaust stream.
During operation, the control system monitors the system. Refer to table 1 for additional information.
Show/hide table
| Description | CDL CID | CDL FMI | CDL EID | WCI | Previous |
| Engine Intake Manifold 1 Temperature Voltage Above Normal | 172 | 3 | 1 | ||
| Engine Intake Manifold 1 Temperature Voltage Below Normal | 172 | 4 | 1 | ||
| ECU reset - brc_software_watchdog | 254 | 0 | 1 | ||
| ECU reset - brc_checkstop_counter | 254 | 1 | 1 | ||
| ECU reset - brc_external_hard | 254 | 2 | 1 | ||
| ECU reset - brc_external_soft | 254 | 3 | 1 | ||
| ECU reset - stack over limit - system | 254 | 4 | 1 | ||
| ECU reset - stack over limit task 0 (background) | 254 | 5 | 1 | ||
| ECU reset - stack over limit 1 (15msec) | 254 | 6 | 1 | ||
| ECU reset - stack over limit 2 (30msec) | 254 | 7 | 1 | ||
| ECU reset - stack over limit 3 (60msec) | 254 | 8 | 1 | ||
| ECU reset - stack over limit 4 (120msec) | 254 | 9 | 1 | ||
| ECU reset - stack over limit 5 (480msec) | 254 | 10 | 1 | ||
| ECU reset - stack over limit 6 (1005msec) | 254 | 11 | 1 | ||
| ECU reset - unexpected reset | 254 | 12 | 1 | ||
| ECU reset - stack over limit task 0.5 (5msec) | 254 | 13 | 1 | ||
| Battery Potential / Power Input Erratic Intermittent or Incorrect | 168 | 2 | 1 | ||
| Battery Potential / Power Input 1 Voltage Above Normal | 168 | 3 | 1 | ||
| Battery Potential / Power Input 1 Voltage Below Normal | 168 | 4 | 2 | ||
| Programmed Parameter Fault | 268 | 2 | 1 | ||
| SAE J1939 Data Link abnormal update rate | 247 | 9 | 1 | ||
| SAE J1939 Data Link 2 abnormal update rate | 2348 | 9 | 1 | ||
| Aftertreatment SCR Catalyst Tank Temperature Voltage Above Normal | 3134 | 3 | 1 | ||
| Aftertreatment SCR Catalyst Tank Temperature Voltage Below Normal | 3134 | 4 | 1 | ||
| Aftertreatment 1 Intake NOx Sensor Current Above Normal | 3002 | 6 | 1 | ||
| Aftertreatment 1 Intake NOx Sensor Abnormal Update Rate | 3002 | 9 | 1 | ||
| Aftertreatment 1 Intake NOx Sensor Bad Device or Component | 3002 | 12 | 1 | ||
| Aftertreatment 1 Outlet NOx Sensor Current Above Normal | 3609 | 6 | 1 | 892 | |
| Aftertreatment 1 Outlet NOx Sensor Abnormal Update Rate | 3609 | 9 | 1 | 892 | |
| Aftertreatment 1 Outlet NOx Sensor Bad Device or Component | 3609 | 12 | 1 | 892 | |
| Aftertreatment 1 Outlet NOx Sensor Current Above Normal | 3610 | 6 | 1 | 893 | |
| Aftertreatment 1 Outlet NOx Sensor Abnormal Update Rate | 3610 | 9 | 1 | 893 | |
| Aftertreatment 1 Outlet NOx Sensor Bad Device or Component | 3610 | 12 | 1 | 893 | |
| Sensor Supply Voltage 1 Voltage Above Normal | 262 | 3 | 2 | ||
| Sensor Supply Voltage 1Voltage Below Normal | 262 | 4 | 2 | ||
| Sensor Supply Voltage 2 Voltage Above Normal | 2131 | 3 | 1 | ||
| Sensor Supply Voltage 2 Voltage Below Normal | 2131 | 4 | 1 | ||
| Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Voltage Above Normal | 3090 | 3 | 1 | ||
| Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Voltage Below Normal | 3090 | 4 | 1 | ||
| Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Voltage Above Normal | 3092 | 3 | 1 | ||
| Aftertreatment 1 SCR Dosing Air Assist Absolute Pressure Voltage Below Normal | 3092 | 4 | 1 | ||
| Aftertreatment 1 SCR Dosing Air Assist Signal Current Below Normal | 3094 | 5 | 1 | ||
| Aftertreatment 1 SCR Dosing Air Assist Signal Current Above Normal | 3094 | 6 | 1 | ||
| Aftertreatment no.1 SCR Catalyst Reagent Line Heater no.1 Current Below Normal | 3110 | 5 | 1 | ||
| Aftertreatment no.1 SCR Catalyst Reagent Line Heater no.1 Current Above Normal | 3110 | 6 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater 2 Current Below Normal | 3111 | 5 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater 2 Current Above Normal | 3111 | 6 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater 3 Current Below Normal | 3112 | 5 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater 3 Current Above Normal | 3112 | 6 | 1 | ||
| Aftertreatment 1 SCR Catalyst Outlet Gas Temperature Voltage Above Normal | 3107 | 3 | 1 | ||
| Aftertreatment 1 SCR Catalyst Outlet Gas Temperature Voltage Below Normal | 3107 | 4 | 1 | ||
| Aftertreatment 2 Diesel Oxidation Catalyst Differential Pressure Voltage Above Normal | 3104 | 3 | 1 | ||
| Aftertreatment 2 Diesel Oxidation Catalyst Differential Pressure Voltage Below Normal | 3104 | 4 | 1 | ||
| Aftertreatment 2 SCR Catalyst Outlet Gas Temperature Voltage Above Normal | 3108 | 3 | 1 | ||
| Aftertreatment 2 SCR Catalyst Outlet Gas Temperature Voltage Below Normal | 3108 | 4 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Tank Level Voltage Above Normal | 3130 | 3 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Tank Level Voltage Below Normal | 3130 | 4 | 1 | ||
| Aftertreatment 1 Diesel Oxidation Catalyst Outlet Gas Temperature Voltage Above Normal | 3105 | 3 | 1 | ||
| Aftertreatment 1 Diesel Oxidation Catalyst Outlet Gas Temperature Voltage Below Norma | 3105 | 4 | 1 | ||
| Aftertreatment 2 Diesel Oxidation Catalyst Outlet Gas Temperature Voltage Above Normal | 3106 | 3 | 1 | ||
| Aftertreatment 2 Diesel Oxidation Catalyst Outlet Gas Temperature Voltage Below Normal | 3106 | 4 | 1 | ||
| Aftertreatment 1 Catalyst Reagent Tank Relay Current Below Normal | 3606 | 5 | 1 | ||
| Aftertreatment 1 Catalyst Reagent Tank Relay Current Above Normal | 3606 | 6 | 1 | ||
| Aftertreatment 1 DEF Manifold Heater Relay Current Below Normal | 3604 | 5 | 1 | ||
| Aftertreatment 1 DEF Manifold Heater Relay Current Above Normal | 3604 | 6 | 1 | ||
| Aftertreatment SCR DEF Manifold Temperature Voltage Above Normal | 3608 | 3 | 1 | ||
| Aftertreatment SCR DEF Manifold Temperature Voltage Below Normal | 3608 | 4 | 1 | ||
| Engine Control Module Abnormal Update Rate | 590 | 9 | 1 | ||
| Aftertreatment 1 SCR Cabinet Temperature Voltage Above Normal | 10200 | 3 | 1 | ||
| Aftertreatment 1 SCR Cabinet Temperature Voltage Below Normal | 10200 | 4 | 1 | ||
| Aftertreatment 1 Catalyst Reagent Pump Motor Heater Current Below Normal | 10204 | 5 | 1 | ||
| Aftertreatment 1 Catalyst Reagent Pump Motor Heater Current Above Normal | 10204 | 6 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater High Side Current Below Normal | 10205 | 5 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater High Side Current Above Normal | 10205 | 6 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater Low Side Current Below Normal | 10206 | 5 | 1 | ||
| Aftertreatment 1 SCR Catalyst Reagent Line Heater Low Side Current Above Normal | 10206 | 6 | 1 | ||
| Low Aftertreatment 1 SCR Catalyst Reagent Tank 1 Level (3) | 0 | 954 | 3 | 1968 | |
| Low Aftertreatment 1 SCR Catalyst Reagent Tank 1 Level (2) | 0 | 954 | 2 | ||
| High Aftertreatment 1 SCR Dosing Reagent Pressure (1) | 0 | 930 | 1 | ||
| Low Aftertreatment 1 SCR Dosing Reagent Pressure (1) | 0 | 931 | 1 | ||
| High Aftertreatment 1 SCR Dosing Atomization Air Assist Pressure (1) | 0 | 1969 | 1 | ||
| Low Aftertreatment 1 SCR Dosing Atomization Air Assist Pressure (1) | 0 | 964 | 1 | ||
| High Aftertreatment 1 Diesel Oxidation Catalyst Differential Pressure | 0 | 942 | 1 | ||
| High Aftertreatment 1 Diesel Oxidation Catalyst Differential Pressure (2) | 0 | 942 | 2 | 1971 |
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