Doosan Fault Codes List: 120 to 248
Page 2 of 4 of the full Doosan fault code list (389 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.
Doosan codes 120 to 248
- 120Maximum negative rail pressure deviation with metering unit on lower limit is exceeded
- 121P0252 1076 20 Rail pressure too low for injection ON No
- 125P0669 1207 0 ECU temperature High fault ON No
- 126ECU temperature sensor High fault (Short circuit to battery)
- 127ECU temperature sensor Low fault (Short circuit to ground)
- 128P018D 1382 0 Fuel filter pressure high fault ON
- 129P018C 1382 1 Fuel filter pressure low fault Blink
- 130P01C6 1382 3 Fuel filter pressure sensor signal high fault ON No
- 1347Fuel Pump Pressurizing Problem
- 136P2547 1568 3 Multi-torque switch signal too high fault ON No
- 137P2546 1568 4 Multi-torque switch signal too low fault ON No
- 138P062D 1612 3 Injector bank 1st Short circuit fault ON No
- 139P062E 1612 12 Injector bank 2nd Short circuit fault ON No
- 140P0528 1639 3 Fan speed too high fault ON No
- 142P0527 1639 11 Fan speed signal long period fault path ON No
- 149P2506 1867 22 ECU Software Reset 0 fault ON No
- 150P1546 2789 0 Turbine inlet temperature High fault ON
- 152P0545 2789 4 Turbine inlet temperature sensor Low fault ON No
- 156P2143 2791 5 EGR H-Bridge Driver Open Circuit Fault ON No
- 1569Engine Protection De-rate
- 157Fuel Rail Pressure Problem
- 158ECU Power Down Error
- 159DEF Tank Temperature sensor Low plausibility fault
- 160NOx sensor signal low fault (Upstream NOx sensor)
- 161NOx sensor 1 (Upstream) concentration Low plausibility fault
- 162NOx sensor heating error (Upstream NOx sensor)
- 163NOx sensor Open circuit fault (Upstream NOx sensor)
- 164NOx sensor Short circuit fault (Upstream NOx sensor)
- 165NOx sensor signal low fault (Downstream NOx sensor)
- 166NOx sensor heating error (Downstream NOx sensor)
- 167NOx sensor Open circuit fault (Downstream NOx sensor)
- 168NOx sensor Short circuit fault (Downstream NOx sensor)
- 169P0408 3236 16 Maximum EGR rate governor deviation ON
- 170P049B 3236 0 EGR rate slow response positive error ON
- 171Check for coolant system issues, like thermostat problems.
- 172P2033 3242 3 DPF(SDPF) inlet temperature sensor High fault ON Tampering
- 173P2032 3242 4 DPF(SDPF) inlet temperature sensor Low fault ON Tampering
- 174Fuel Temperature Problem
- 175P2035 3242 20 DPF(SDPF) inlet temperature Drift fault ON
- 176P2455 3251 3 DPF differential pressure sensor High fault ON Tampering
- 177P2454 3251 4 DPF differential pressure sensor Low fault ON Tampering
- 178P3052 3251 13 DPF differential pressure drift fault ON No
- 179P1454 3251 18 DPF differential pressure too low fault ON Tampering
- 180P244A 3251 18 DPF differential pressure too low fault ON Tampering
- 1800Low oil pressure detected.
- 181Check fuel select switch connection for short to ground.
- 182DEF dosing valve actuator Short circuit to battery Fault
- 183DEF dosing valve actuator Short circuit to ground Fault
- 184P2049 3361 5 DEF dosing valve actuator Open Circuit Fault ON Tampering
- 185DEF dosing valve actuator Over temperature Fault
- 186P2C11 3361 14 DEF dosing valve plausibility fault ON Tampering
- 188DEF dosing valve actuator HS(High side) Short circuit to ground Fault
- 189Engine Speed Derate Condition Exists
- 190DEF Tank heating coolant valve output Short circuit to battery Fault
- 191DEF Tank heating coolant valve output Short circuit to ground Fault
- 192DEF Tank heating coolant valve output Open circuit Fault
- 193Check crankshaft sensor connections for issues.
- 194P0659 3509 3 ECU Sensor Supply (5V)1 Over voltage fault ON
- 198ECU Sensor Supply (5V) Overvoltage monitoring error
- 199P2671 3510 3 ECU Sensor Supply (5V)2 Over voltage fault ON
- 20Restricted Air Filter Diagnostic Light: ALERT indication
- 200P2670 3510 4 ECU Sensor Supply (5V)2 Under voltage fault ON
- 201P1669 3510 5 ECU Sensor Supply (5V)2 voltage fault ON
- 202ECU Sensor Supply (5V)2 Short circuit to ground
- 203ECU Sensor Supply (5V) Undervoltage monitoring error
- 204P2686 3511 3 ECU Sensor Supply (5V)3 Over voltage fault ON
- 205P2685 3511 4 ECU Sensor Supply (5V)3 Under voltage fault ON
- 206P1684 3511 5 ECU Sensor Supply (5V)3 voltage fault ON
- 207ECU Sensor Supply (5V)3 Short circuit to ground
- 208P106D 3516 0 DEF Quality Too High fault ON
- 209P106C 3516 1 DEF Quality Too Low fault ON
- 210P203F 3517 18 DEF Tank level is empty ON DEF level
- 211U1028 3520 3 DEF Quality Sensor Open circuit ON Tampering
- 212U1030 3520 4 DEF Quality Sensor Short circuit ON Tampering
- 213P203A 3532 3 DEF Level Sensor Open circuit ON Tampering
- 214P2041 3532 4 DEF Level Sensor Short circuit ON Tampering
- 215DPF regeneration inhibit switch Stuck (Short to Battery) fault (Hardwire)
- 216DPF regeneration enable switch Stuck (Short to Battery) fault (Hardwire)
- 217DPF regeneration inhibit & enable switch plausibility fault (Hardwire)
- 218DPF lamp 1 (DPF regeneration switch enable lamp) Short to Battery
- 219DPF lamp 1 (DPF regeneration switch enable lamp) Short to Ground
- 220DPF lamp 1 (DPF regeneration switch enable lamp) Open circuit
- 223P025D 4082 3 Fuel metering unit Short circuit to Battery fault ON
- 224P025C 4082 4 Fuel metering unit Short circuit to Ground fault ON
- 225P025A 4082 5 Fuel metering unit Open circuit fault ON
- 226P025B 4082 7 Fuel metering unit Over temperature fault ON
- 228DEF Underpressure error at METERINGCONTROL (DEF pump pressure is too low)
- 229DEF pressure build up error at PRESSUREBUILDUP (DEF pump pressure is too low)
- 230DEF Leakage detection at METERINGCONTROL
- 231DEF Overpressure error regardless of the state (DEF pump pressure is too high)
- 232TPS2 sensor voltage out of range high detected.
- 233DEF underpressure error at AFTERRUN_PRESSURECOMPENSATION
- 236DEF Pressure line heater circuit Open circuit or Short circuit to ground Fault
- 239DEF Suction line heater circuit Open circuit Fault
- 240DEF Suction line heater circuit Open circuit or Short circuit to ground Fault
- 243P2046 4365 4 DEF Temperature Sensor Short circuit ON Tampering
- 244DEF Tank temperature plausibility fault (Insufficient temperature increment)
- 246DEF Supply Pump Motor Signal Short circuit to ground Fault
- 247DEF Supply Pump Motor Signal Open circuit Fault
- 248DEF Supply Pump Motor Signal Over temperature Fault
Other Doosan machine types
Fault code lists by brand
- CAT8,286 codes
- Volvo6,508 codes
- New Holland Tractor3,475 codes
- FPT3,033 codes
- Case IH2,992 codes
- Bobcat2,653 codes
- Challenger Tractor2,434 codes
- New Holland Combine2,274 codes
- John Deere Tractors1,884 codes
- Case Wheel Loader1,859 codes
- John Deere Engines1,853 codes
- Cummins1,847 codes
- Challenger Rubber Track Tractor1,747 codes
- Volvo Wheel Loader1,726 codes
Safety-critical: confirm before use
Safety first: park on level ground, stop the engine, and secure the machine before any inspection. Thresholds, component locations, wire numbers, fuse locations, and reset procedures can vary by model, configuration, and serial number. Confirm them in the service documentation for your exact machine.