Ecd System Fail-Safe Chart

Engine. Lexus Is250, Is220D. Gse20 Ale20
2Ad-Fhv Engine Control System. Lexus Is250, Is220D. Gse20 Ale20

  1. FAIL-SAFE CHART

Ecd System -- Fail-Safe Chart



FAIL-SAFE CHART
If any of the following DTCs are set, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily.

DTC No.
Detection Item
Fail-safe Operation
Fail-safe Deactivation Condition
P0031
Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
Limits engine power
Normal condition is restored.
P0032
Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
Limits engine power
Normal condition is restored.
P0087
Fuel Rail / System Pressure - Too Low
[Fuel pressure sensor system malfunction]
Limits engine power
Engine switch OFF
P0088
Fuel Rail / System Pressure - Too High
[Common rail system malfunction]
Limits engine power
Engine switch OFF
P0093
Fuel System Leak Detected - Large Leak
[Fuel leaks in common rail system]
Limits engine power for 1 minute and then stalls engine
Engine switch OFF
P0095
Intake Air Temperature Sensor 2 Circuit
Intake air (intake manifold) temperature is fixed at 180°C (356°F)
Normal condition is restored.
P0097
Intake Air Temperature Sensor 2 Circuit Low
Intake air (intake manifold) temperature is fixed at 180°C (356°F)
Normal condition is restored.
P0098
Intake Air Temperature Sensor 2 Circuit High
Intake air (intake manifold) temperature is fixed at 180°C (356°F)
Normal condition is restored.
P0100
Mass or Volume Air Flow Circuit
Limits the engine power
Normal condition is restored.
P0102
Mass or Volume Air Flow Meter Circuit Low Input
Limits the engine power
Normal condition is restored.
P0103
Mass or Volume Air Flow Meter Circuit High Input
Limits the engine power
Normal condition is restored.
P0105
Manifold Absolute Pressure / Barometric Pressure Circuit
[Intake air pressure sensor]
Turbo pressure fixed at specified value
Normal condition is restored.
P0107
Manifold Absolute Pressure / Barometric Pressure Circuit Low Input
[Intake air pressure sensor low input]
Turbo pressure fixed at specified value
Normal condition is restored.
P0108
Manifold Absolute Pressure / Barometric Pressure Circuit High Input
[Intake air pressure sensor high input]
Turbo pressure fixed at specified value
Normal condition is restored.
P0110
Intake Air Temperature Circuit
[Intake air temperature sensor]
Intake air temperature fixed at specified value
Normal condition is restored.
P0112
Intake Air Temperature Circuit Low Input
[Intake air temperature sensor low input]
Intake air temperature fixed at specified value
Normal condition is restored.
P0113
Intake Air Temperature Circuit High Input
[Intake air temperature sensor high input]
Intake air temperature fixed at specified value
Normal condition is restored.
P0115
Engine Coolant Temperature Circuit
[Engine coolant temperature sensor]
Engine coolant temperature sensor output fixed at specified value (fixed value varies depending on conditions)
Normal condition is restored.
P0117
Engine Coolant Temperature Circuit Low Input
[Engine coolant temperature sensor low input]
Engine coolant temperature sensor output fixed at specified value (fixed value varies depending on conditions)
Normal condition is restored.
P0118
Engine Coolant Temperature Circuit High Input
[Engine coolant temperature sensor high input]
Engine coolant temperature sensor output fixed at specified value (fixed value varies depending on conditions)
Normal condition is restored.
P0120
Throttle / Pedal Position Sensor / Switch "A" Circuit
[Throttle position sensor]
Limits engine power
Engine switch OFF
P0122
Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
[Throttle position sensor low input]
Limits engine power
Engine switch OFF
P0123
Throttle / Pedal Position Sensor / Switch "A" Circuit High Input
[Throttle position sensor high input]
Limits engine power
Engine switch OFF
P0168
Fuel Temperature Too High
[Fuel temperature sensor rationality]
Limits engine power
Normal condition is restored.
P0180
Fuel Temperature Sensor "A" Circuit
[Fuel temperature sensor]
Fuel temperature fixed at specified value
Normal condition is restored.
P0182
Fuel Temperature Sensor "A" Circuit Low Input
[Fuel temperature sensor low input]
Fuel temperature fixed at specified value
Normal condition is restored.
P0183
Fuel Temperature Sensor "A" Circuit High Input
[Fuel temperature sensor high input]
Fuel temperature fixed at specified value
Normal condition is restored.
P0190
Fuel Rail Pressure Sensor Circuit
[Fuel pressure sensor]
Limits engine power
Engine switch OFF
P0191
Fuel Rail Pressure Sensor Circuit Range/Performance
Limits engine power
Engine switch OFF
P0192
Fuel Rail Pressure Sensor Circuit Low Input
[Fuel pressure sensor low input]
Limits engine power
Engine switch OFF
P0193
Fuel Rail Pressure Sensor Circuit High Input
[Fuel pressure sensor high input]
Limits engine power
Engine switch OFF
P0200
Injector Circuit / Open
[EDU system for injector malfunction]
When one injector circuit is malfunctioning, engine power is limited; when 2 or more ignition circuits are malfunctioning, engine is stopped
Engine switch OFF
P0234
Turbo/Supercharger Overboost Condition
Limits engine power
Engine switch OFF
P0335
Crankshaft Position Sensor "A" Circuit
[Crankshaft position sensor]
Engine stopped
Normal condition is restored.
P0340
Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
[Camshaft position sensor]
Limits engine power
Normal condition is restored.
P0400
Exhaust Gas Recirculation Flow
Limits engine power
Engine switch OFF
P0405
Exhaust Gas Recirculation Sensor "A" Circuit Low
Limits engine power
Engine switch OFF
P0406
Exhaust Gas Recirculation Sensor "A" Circuit High
Limits engine power
Engine switch OFF
P0488
Exhaust Gas Recirculation Throttle Position Control Range / Performance
[Intake shutter]
Limits engine power
Engine switch OFF
P0500
Vehicle Speed Sensor "A"
[Vehicle speed sensor]
Vehicle speed fixed at 0 km/h (0 mph)
Normal condition is restored.
P0544
Exhaust Gas Temperature Sensor Circuit (Bank1 Sensor 1)
Limits engine power
Engine switch OFF
P0545
Exhaust Gas Temperature Sensor Circuit Low (Bank1 Sensor 1)
Limits engine power
Engine switch OFF
P0546
Exhaust Gas Temperature Sensor Circuit High (Bank1 Sensor 1)
Limits engine power
Engine switch OFF
P0627
Fuel Pump Control Circuit / Open
[Common rail system malfunction]
Engine stopped
Normal condition is restored.
P1229
Fuel Pump System
[Common rail system malfunction]
Limits engine power
Engine switch OFF
P1251
Turbo/Super Charger Overboost Condition (Too High)
Limits engine power
Engine switch OFF
P1271
Fuel Regulator Circuit Malfunction EDU Drive)
Limits engine power
Engine switch OFF
P1272
Fuel Pressure Regulator Malfunction
Limits engine power
Engine switch OFF
P1386
Injector For Exhaust Fuel Addition
  1. Low or excess fuel addition volume: No fail-safe operation
  2. Low fuel addition volume: Limits the engine power (Driving at engine speed of up to approximately 80 km/h [50 mph] is permitted)
  3. Stuck open: Limits the engine power (Driving at engine speed of up to approximately 80 km/h [50 mph] is permitted)
Engine switch OFF
P1425
Differential Pressure Sensor Circuit
Differential pressure is fixed at specified value
Engine switch OFF
P1427
Differential Pressure Sensor Circuit Low
Differential pressure is fixed at specified value
Engine switch OFF
P1428
Differential Pressure Sensor Circuit High
Differential pressure is fixed at specified value
Engine switch OFF
P1611
RUN PULSE
[ECM]
Engine stopped
Engine switch OFF
P1625
Idle Signal Transmitter Circuit
Limits engine power
Normal condition is restored
P2002*
Particulate Trap Efficiency Below Threshold (Bank 1)
Limits engine power
Engine switch OFF
P2031
Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
Limits engine power
Engine switch OFF
P2032
Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)
P2033
Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)
P2047
Reductant Injector Circuit/Open (Bank 1 Unit 1)
Limits engine power
Engine switch OFF
P2048
Short to GND in Reductant Injector (Bank 1)
Limits engine power
Engine switch OFF
P2049
Short to B+ in Reductant Injector (Bank 1)
Limits engine power
Engine switch OFF
P2120
Throttle / Pedal Position Sensor / Switch "D" Circuit
[Accelerator pedal position sensor (sensor 1)]
Limits engine power
Engine switch OFF
P2121
Throttle/Pedal Position Sensor / Switch "D" Circuit Range / Performance
[Accelerator pedal position sensor rationality (sensor 1)]
Limits engine power
Engine switch OFF
P2122
Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input
[Accelerator pedal position sensor low input (sensor 1)]
Limits engine power
Engine switch OFF
P2123
Throttle / Pedal Position Sensor / Switch "D" Circuit High Input
[Accelerator pedal position sensor high input (sensor 1)]
Limits engine power
Engine switch OFF
P2125
Throttle / Pedal Position Sensor / Switch "E" Circuit
[Accelerator pedal position sensor (sensor 2)]
Limits engine power
Engine switch OFF
P2127
Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input
[Accelerator pedal position sensor low input (sensor 2)]
Limits engine power
Engine switch OFF
P2128
Throttle/Pedal Position Sensor/Switch "E" Circuit High Input
[Accelerator pedal position sensor high input (sensor 2)]
Limits engine power
Engine switch OFF
P2138
Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
[Accelerator pedal position sensor malfunction]
Limits engine power
Engine switch OFF
P2226
Barometric Pressure Circuit
[ECM]
Atmospheric pressure fixed at specified value
Normal condition is restored.
P2228
Barometric Pressure Circuit Low Input
[ECM]
Atmospheric pressure fixed at specified value
Normal condition is restored.
P2229
Barometric Pressure Circuit High Input
[ECM]
Atmospheric pressure fixed at specified value
Normal condition is restored.
P2237
Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1)
Limits engine power
Normal condition is restored.
P2238
Oxygen (A/F) Sensor pumping Current Circuit Low (Bank 1 Sensor 1)
Limits engine power
Normal condition is restored.
P2239
Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
Limits engine power
Normal condition is restored.
P2252
Oxygen (A/F) Sensor Reference Ground Current Low (Bank 1 Sensor 1)
Limits engine power
Normal condition is restored.
P2253
Oxygen (A/F) Sensor Reference Ground Current High (Bank 1 Sensor 1)
Limits engine power
Normal condition is restored.
HINT:
*: Fail-safe operation is not performed when a DTC is detected because of deterioration of the DPNR catalyst.