Engine DTC Table

Component / System	DTC / DTC Description	Monitor Strategy Description	Malfunction Criterion	Threshold Value		Secondary Parameters	Enable Condition		Monitoring Time Length	MIL Illum.	Component Diagnostic
Voltage Monitoring	P0562 - System Voltage Low	Engine Control Module (ECM):□ ECM power supply check during standby	internal check	error detected	[-]	ECM initialization	active		0 [s] once / DCY	1 DCY	• Check powers/grounds to the Engine/Motor Control Module -J623-. If ok, then check the integrity of the Engine/Motor Control Module -J623-. Refer to appropriate Service Information.
Voltage Monitoring			number of DCY with detected faults	2.00
enable conditions for active lambda stimulation						no fault suspicion O2S rear target monitor:
						engine speed	>= 600	[rpm]
						fuel cut off	active
						for time	<= 10.0	[s]
						for integrated exhaust gas mass flow	>= 0.20	[kg]
						vehicle speed	> 3.1	[mph]
						engine speed	920...4000	[rpm]
						AAT	not calibrated	[°C]
						BARO	> 0.00	[kPa]
						ECT	> -48.0	[°C]
						fuel adaptation (since last reset)	not calibrated
						gear shifting	not calibrated
						for time	not calibrated	[s]
						engine load during constant combustion mode	> 0.00	[%]
						scavenging:
						scavenging rate	< 1.03	[-]
						for integrated air mass	> 0.05	[kg]
						soot load:
						modeled relative soot mass	<= 65.54	[g/l]
						sensor based relative soot load	<= 51.20	[-]
						regeneration level	<= 4.00	[-]
						or
						regeneration level	>= 5	[-]
						O2S front offset error suspicion	not detected
						or
						O2S front dynamic error suspicion	not detected
						lower range window:
						exhaust gas mass flow, lower range to activate diagnosis (narrow range)	35.00...125.00	[kg/h]
						exhaust gas mass flow, lower range during diagnosis (normal range)	35.00...125.00	[kg/h]
						exhaust gas mass flow, lower range during diagnosis (extended range)	23.00...125.00	[kg/h]
						extended range only for time	<= 6.0	[s]
						modeled EGT in catalyst system, lower range to activate diagnosis (narrow range, gasoline mode)	425.0...775.0	[°C]
						modeled EGT in catalyst system, lower range during diagnosis (normal range, gasoline mode)	425.0...775.0	[°C]
						modeled EGT in catalyst system, lower range during diagnosis (normal range, CNG mode)	not calibrated	[°C]
						change of modeled catalyst temperature	-65.0...100.0	[K]
						upper range window:
						exhaust gas mass flow, upper range to activate diagnosis (narrow range)	60.00...200.00	[kg/h]
						exhaust gas mass flow, upper range during diagnosis (normal range)	60.00...200.00	[kg/h]
						modeled EGT in catalyst system, upper range to activate diagnosis (narrow range, gasoline mode)	520.0...900.0	[°C]
						modeled EGT in catalyst system, upper range during diagnosis (normal range, gasoline mode)	520.0...900.0	[°C]
						modeled EGT in catalyst system, upper range during diagnosis (normal range, CNG mode)	not active	[°C]
						change of modeled catalyst temperature	-65.0...100.0	[K]
						lower/upper range window (conditions fulfilled):
						catalyst temperature	> 315.0	[°C]
						for time	> 60.0	[s]
						for integrated exhaust gas mass flow	> 0.05	[kg]
						change of exhaust gas mass flow	-20.00...25.00	[kg/h]
						with delay time	>= 0.5	[s]
						modeled temperature difference over catalyst	not calibrated	[K]
						alternative EVAP condition 1:
						integrated EVAP purge mass since last purge stop	> 3.0	[g]
						ratio fuel mass from EVAP purge system to fuel mass through injectors	<= 1.00	[-]
						EVAP purge adaptation value	<= 15.00	[-]
						or
						alternative EVAP condition 2:
						EVAP purge mass into intake manifold	<= 0.15	[kg/h]
						or
						EVAP purge in limp-home mode	active
						or
						alternative EVAP condition 3:
						EVAP purge	not active
						for integrated exhaust gas mass flow	>= not calibrated	[kg]
					fuel injector shut off:
					fuel injector shut off	not calibrated
				for time	not calibrated	[s]
				general conditions:
				time after engine start	> 6553.5	[s]
				or
				modeled catalyst temperature	> 1000.0	[°C]
				or
				integrated air mass	> 1.00...3.00	[kg]
				integrated heat energy	not calibrated	[kJ]
				additional conditions:
				integrated exhaust gas mass flow after O2S front and O2S rear ready	> 0.10	[kg]
				modeled EGT at O2S rear	> 335.0	[°C]
				lambda set point	0.97...1.03	[-]
				for integrated air mass	>= 0.05	[kg]
				condition in case of O2S rear offset suspicion:
				exhaust gas mass flow	20.00...200.00	[kg/h]
				lambda enable condition monitor - only if:
				lambda set point request	realized
				dev. engine nominal lambda value vs. expected lambda @ sensor position	< 0.01	[-]
				lambda control	not at min or max limit
				monitoring stops if lambda deviation	>= -3.49...3.49	[%]
				with delay time	>= 0.3...2.0	[s]
				or
				monitoring stop events per DCY (monitoring stop disabled)	>= 2.00	[-]
				or
				O2S front offset fault suspicion	active
				or
				O2S rear target fault in previous DCY	detected
				or
				conditions for dynamic fault suspicion evaluation	not calibrated
				conditions to switch from rich to lean phase:
				actual lambda value	0.76...1.00	[-]
				for time	> 0.8	[s]
				integrated exhaust gas mass	>= 0.01	[kg]
				alternative condition 1:
				O2S rear voltage	>= 1.25	[V]
				or
				alternative condition 2:
				O2S rear voltage	>= 0.75	[V]
				O2S rear voltage gradient	-0.03...0.08	[V/s]
				MAF rich gas integral	>= 0.2	[g]
				or
				alternative condition 3: conditions for dynamic fault suspicion evaluation:
				integrated rich gas mass	not calibrated	[mg]
				for number of events	not calibrated	[-]
				conditions to switch from lean to rich phase:
				actual lambda value	0.94...1.16	[-]
				for time	> 0.8	[s]
				integrated exhaust gas mass	>= 0.01	[kg]
				alternative condition 1:
				O2S rear voltage	<= 0.15	[V]
				or
				alternative condition 2:
				O2S rear voltage	<= 0.20	[V]
				O2S rear voltage gradient	-66.50...66.50	[V/s]
				MAF O2 integral	>= 0.2	[g]
				or
				alternative condition 3: in case of dynamic fault suspicion:
				integrated lean gas mass	not calibrated	[mg]
				for number of events	not calibrated	[-]
enable conditions for online identification					general conditions:
					EVAP purge adaptation factor	<= 15.00	[-]
					integrated EVAP purge mass	>= 3.0	[g]
					or
					EVAP purge flow	< 1.00	[kg/h]
					or
					EVAP purge flow	< 0.50	[kg/h]
					gear shifting	not active
					for time	>= 0.2	[s]
					time after engine start	> 7.0	[s]
					deviation engine load	<= 3.52	[%]
					for time	> 1.0	[s]
					engine load	> 10.01	[%]
					for time	> 0.0	[s]
					AIR system	not calibrated
					for time	not calibrated	[s]
					catalyst heating (lambda split)	not active
					valve stroke switching for time	< 0.5	[s]
					scavenging rate	<= 1.02	[-]
					for integrated exhaust gas mass	>= 50.0	[g]
					only for transient operation for cylinder deactivation:
					cylinder deactivation (CD)	not calibrated
					for time	not calibrated	[s]
					only for dual-fuel injection (DFI / MFI) vehicles:
					gradient of MFI	not calibrated	[-]
					change mode DFI / MFI	not calibrated
					for time	not calibrated	[s]
					O2S front	closed loop
					component protection	not active
					catalyst purge	not active
					for time	> 2.0	[s]
					exhaust gas mass transport time between combustion chamber and O2S front (constant) for time	<= 0.3	[s]
					exhaust gas mass flow	<= 150.00	[kg/h]
					deviation exhaust mass flow	<= - 3276.80...3276.70	[kg/h]
					for time	>= 0.1	[s]
					O2S front	ready
					for time	> 10.0	[s]
					time delay for filter switch-on	> 1.0	[s]
					fuel injector shut off	not active
					for time	> 3.0	[s]
					integrated heat energy after engine start	not calibrated	[kJ]
					conditions for adaptation: lean to rich or rich to lean transition:
					deviation modeled lambda lean to rich (inverted)	>= 0.02	[-]
					adaptation time (incl. identified delay time) for exceeded lambda deviation only if identification during O2S	0.5	[s]
					and catalyst monitoring:
					enable conditions for active lambda stimulation (Referenced)	not calibrated
					time delay (loss of stability)	not calibrated	[s]
High PCV Purge Load due to Oil Dilution					time after evap purge valve closed	>= 0.0	[s]
					ratio modeled fuel mass evaporation out of oil to actual necessary fuel mass	> 0.05	[-]
					modeled oil temperature	> -21.8	[°C]
					or
					optional condition (only used for reducing adaptation speed):
					ratio modeled fuel mass evaporation out of oil to actual necessary fuel mass	not calibrated	[-]
					ratio calculated fuel mass evaporation out of oil to actual necessary fuel mass	not calibrated	[-]
					modeled oil temperature	> -21.8	[°C]
O2S Front Offset Adaptation					O2S front fault suspicion from lambda control:
					case 1: lambda controller at min limit:
					1st lambda control loop	.@ min limit
					O2S front set point	1.00...1.00	[-]
					O2S front signal	< 1.0	[-]
					O2S rear voltage	< 0.4	[V]
					O2S rear	ready
					or
					case 2: lambda controller at max limit:
					1st lambda control loop	.@ max limit
					O2S front set point	1.00...1.00	[-]
					O2S front signal	> 1.0	[-]
					O2S rear voltage	> 0.6	[V]
					O2S rear	ready
					conditions for accumulation of exhaust gas mass for steady state:
					O2S rear	ready
					O2S front set point	1.00...1.00	[-]
					catalyst purge	not active
					engine speed	> 920	[rpm]
					fuel cut off	not active
					ECT	> 40.0	[°C]
					or
					modeled ECT	> 40.0	[°C]
					catalyst reheating	not active
					catalyst heating during cold start	not calibrated
					catalyst heating with AIR	not calibrated
					engine load gradient	< \|30.00\|	[%/CAMrev]
					engine load cycle	not calibrated	[-]
					engine load	not calibrated	[%]
					AIR	not calibrated
					AIR system diagnosis	not calibrated
					scavenging rate	> 16.00	[-]
					accumulation of exhaust gas mass for steady state after fuel cut off with catalyst purge:
					integrated exhaust gas mass (steady state detection)	> 350.0	[g]
					or
					accumulation of exhaust gas mass for steady state after fuel cut off without catalyst purge:
					integrated exhaust gas mass (steady state detection)	> 175.0	[g]
					conditions for accumulation of exhaust gas mass for adaptation:
					O2S front response monitoring in current DCY	not calibrated
					or
					O2S rear offset monitor fault suspicion (target voltage not reached)	not calibrated
					or
					O2S front fault suspicion from lambda control	not calibrated
					for time	not calibrated	[s]
					modeled EGT	450.0...900.0	[°C]
					for time	> 0.0	[s]
					exhaust gas mass flow	18.00...250.00	[kg/h]
					or
					exhaust gas mass flow	18.00...18.00	[kg/h]
					within time	< 8.0	[s]
					O2S front	ready
					H2 correction of O2S rear voltage	< 0.11	[V]
					O2S front offset monitoring in current DCY	not calibrated
					catalyst damaging misfire	not detected
					scavenging rate	< 1.03	[-]
					split factor DFI/MFI	not calibrated
					catalyst heating (lambda split)	not calibrated
					lambda control	closed loop
					for time	>= 2.0	[s]
					case 1: lambda controller not at min or max limit:
					O2S rear	ready
					O2S rear control loop (i- part) (Referenced)	not calibrated
					for time	not calibrated	[s]
					or
				O2S rear control loop (p- part) (Referenced)	active
				for time	>= 0.0	[s]
				or
				case 2: lambda controller at min or max limit:
				O2S front fault suspicion from lambda control	active
				above both cases for time	>= 2.0	[s]
				accumulation of exhaust gas mass for adaptation:
				integrated exhaust gas mass (adaptation check)	150.0...170.0	[g]
				reset of exhaust gas mass for adaptation:
				check for adaptation step	finished
				or
				conditions for accumulation of exhaust gas mass for adaptation	not fulfilled
				final conditions: fault debounce:
				case 1:
				number of checks for adaptation in row	>= 2.00	[-]
				change of abs adapted i- part of 2nd lambda control loop (O2S front offset) at each check (adaptation finished)	<= 0.80	[%]
				or
				low pass filtered abs sum of control value and control error of 2nd lambda control loop at each check (adaptation demand in fault direction)	> 0	[%]
				with filter time	5.0	[s]
				or
				case 2:
				number of total checks for adaptation	>= 4.00	[-]
				final conditions: heal debounce:
				number of checks for adaptation in row	>= 2.00	[-]
				change of abs adapted i-part of 2nd lambda control loop (O2S front offset) at each check (adaptation finished)	<= 0.80	[%]
O2S rear control loop (i-part)					i-part global balance primary O2S rear control enable conditions:
					EVAP monitoring	not active
					case 1:
					scavenging rate	not calibrated	[-]
					or
					case 2:
					scavenging rate	not calibrated	[-]
					integrated scavenging rate	not calibrated
					band width of lambda control deviation	0	[-]
					ECT	> 40.0	[°C]
					catalyst heating (lambda split)	not active
					relative fuel mass @ EVAP purge	not calibrated	[-]
					filtered engine load gradient	< -1.50...1.50	[%/CAMrev]
					for filtered time	1.3	[s]
					i-part balance primary O2S rear control enable condition:
					lambda control	not calibrated
					primary O2S rear control @ open loop (limp home mode):
					fuel injector power stage error	not calibrated
					fuel injection time lower threshold	not calibrated
					O2S front	not calibrated
					i-part general conditions:
					O2S rear control loop (p-part) (Referenced)	active
					primary O2S rear control @ open loop (limp home mode)	not active
					i-part global O2S front control enable conditions:
					i-part global balance primary O2S rear control enable conditions	enabled
					engine speed	1080...4520	[rpm]
					for time	>= 0.5	[s]
					engine load	22.50...130.01	[%]
					for time	>= 0.5	[s]
					idle speed (without fuel cut off)	not calibrated
					for time	not calibrated	[s]
					GPF regeneration	not calibrated
					GPF regeneration level	not calibrated	[-]
					ignition efficiency	> 0.70	[-]
					during catalyst heating	active
					i-part balance primary O2S rear control enable condition:
					i-part balance primary O2S rear control enable condition	enabled
					i-part system primary O2S rear control enable conditions:
					exhaust gas mass of O2S rear Control Loop (p-part, referenced)	> 70.0...155.0	[g]
					catalyst temperature	375.1...1262.9	[°C]
					integrated scavenging rate depending on catalyst aging factor	< 0.4...2.4	[g]
					conditions for accumulation exhaust gas mass:
					i-part global balance primary O2S rear control enable conditions	enabled
					i-part balance primary O2S rear control enable condition	enabled
					H2 protection primary O2S rear control	not active
					O2S rear	ready
					catalyst heating	not calibrated
					exhaust gas mass after first start	> 64.7...90.3	[g]
					exhaust gas mass after restart	> 64.7...90.3	[g]
O2S rear control loop (p-part)					p-part primary O2S rear control enable conditions:
					lambda control	no limit
					lambda control	closed loop
					primary O2S rear control @ open loop (limp home mode):
					fuel injector power stage error	not calibrated
					fuel injection time lower threshold	not calibrated
					O2S front	not calibrated
					p-part global primary O2S rear control enable conditions:
					catalyst heating	not calibrated
					EVAP monitoring	not calibrated
					misfire	not detected
					engine speed	not calibrated	[rpm]
					for time	>= 1.0	[s]
					engine load	not calibrated	[%]
					for time	>= 1.0	[s]
					GPF regeneration	not calibrated
					GPF regeneration level p-part balance primary O2S rear	not calibrated	[-]
					control enable conditions:
					O2S rear lambda control loop @ low-temperature mode	not calibrated
					or
					O2S rear	ready
					p-part primary O2S rear control enable conditions	enabled
					or
					primary O2S rear control @ open loop (limp home mode)	enabled
					p-part system primary O2S rear control enable conditions:
					catalyst temperature	350.0...3003.6	[°C]
					conditions for accumulation exhaust gas mass:
					O2S front lambda setpoint	0.9998...1.0002	[-]
					catalyst purge (rich condition detected)	not active
					p-part primary O2S rear control enable conditions	enabled
					or		[g]
					primary O2S rear control @ open loop (limp home mode)	enabled
					exhaust gas mass	> 0.7...14.9
Retained-Heat Detection after driving conditions with combustion					conditions:
					engine running for accumulated time	>= 30.0	[s]
					accumulation enabled if:
					engine speed	>= 600	[rpm]
					vehicle speed	> 24.8	[mph]
					for time	> 30.0	[s]
					temperature difference:
					diff. ECT downstream engine @ start vs. min temp. until conditions	not calibrated	[K]
					diff. ROT @ start vs. min temp. until conditions	<= 5.0	[K]
					diff. ECT @ cylinder head @ start vs. min temp. until conditions	not calibrated	[K]
					diff. AAT @ start vs. min temp. until conditions	<= 5.0	[K]
					diff. EOT @ start vs. min temp. until conditions	not calibrated	[K]
					diff. heating circuit temperature @ start vs. min temp. until conditions	not calibrated	[K]
					diff. inverter coolant temperature @ start vs. min temp. until conditions	not calibrated	[K]
					diff. EOT @ cylinder head @ start vs. min temp. until conditions	not calibrated	[K]
					diff. ECT @ crankcase @ start vs. min temp. until conditions	not calibrated	[K]
					diff. engine compartment temperature @ start vs. min temp. until conditions	not calibrated	[K]
Retained-Heat Detection after Purge Manifold					Conditions:
					throttle position	> 10.00	[%]
					engine speed	> 600	[rpm]
					for time	> 5.0	[s]
					temperature difference:
					diff. IAT @ manifold @ start vs. min. temp. until conditions	<= 5.0	[K]
					IF (for high electric range vehicles):
					diff. IAT @ manifold @ start vs. min. temp. until conditions	> 5.0	[K]
					then:
					diff. (IAT @ manifold - AAT) @ start vs. diff. until conditions	<= 5.0	[K]
					temperature difference:
					diff. IAT 2 @ start vs. min temp. until conditions	not calibrated	[K]
					IF (for high electric range vehicles):
					diff. IAT 2 @ start vs. min temp. until conditions	not calibrated	[K]
					then:
					diff. (IAT 2 - AAT) @ start vs. diff. until conditions	not calibrated	[K]
					temperature difference:
					diff. IAT 3 @ start vs. min temp. until conditions	not calibrated	[K]
					IF (for high electric range vehicles):
					diff. IAT 3 @ start vs. min temp. until conditions	not calibrated	[K]
					then:
					diff. (IAT 3 - AAT) @ start vs. diff. until conditions	not calibrated	[K]
					temperature difference:
					diff. IAT 4 @ start vs. min temp. until conditions	not calibrated	[K]
					IF (for high electric range vehicles):
					diff. IAT 4 @ start vs. min temp. until conditions	not calibrated	[K]
					then:
					diff. (IAT 4 - AAT) @ start vs. diff. until conditions	not calibrated	[K]