ECD SYSTEM FAIL-SAFE CHART

  1. FAIL-SAFE CHART

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

    Tip:

    PM regeneration may be prohibited depending on the malfunctioning part of the exhaust treatment system (DPNR related portion).

    DTC No.

    Detection Item

    Fail-safe Operation

    Fail-safe Deactivation Condition

    P0031

    Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)

    -

    Pass condition detected

    P0032

    Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)

    -

    Pass condition detected

    P007C

    Charge Air Cooler Temperature Sensor Circuit High

    The intake air temperature is fixed at a specified value.

    Pass condition detected

    P007D

    Charge Air Cooler Temperature Sensor Circuit High

    The intake air temperature is fixed at a specified value.

    Pass condition detected

    P0087

    Fuel Rail/System Pressure - Too Low

    The engine power is reduced by 90%.*

    Ignition switch off

    P0088

    Fuel Rail/System Pressure - Too High

    The engine power is reduced by 90%.*

    Ignition switch off

    P0093

    Fuel System Leak Detected - Large Leak

    The engine power is reduced by 90%.*

    Ignition switch off

    P0100

    Mass or Volume Air Flow Circuit Malfunction

    The engine power is limited.

    Pass condition detected

    P0101

    Mass or Volume Air Flow Circuit

    The engine power is limited.

    Ignition switch off

    P0107

    Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

    The turbo pressure is fixed at a specified value.

    Pass condition detected

    P0108

    Manifold Absolute Pressure/Barometric Pressure Circuit High Input

    The turbo pressure is fixed at a specified value.

    Pass condition detected

    P0112

    Intake Air Temperature Circuit Low Input

    The intake air temperature value is fixed.

    Pass condition detected

    P0113

    Intake Air Temperature Circuit High Input

    The intake air temperature value is fixed.

    Pass condition detected

    P0115

    Engine Coolant Temperature Circuit

    The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).

    Pass condition detected

    P0117

    Engine Coolant Temperature Circuit Low Input

    The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).

    Pass condition detected

    P0118

    Engine Coolant Temperature Circuit High Input

    The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).

    Pass condition detected

    P0122

    Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input

    The engine power is limited.

    Ignition switch off

    P0123

    Throttle/Pedal Position Sensor/Switch "A" Circuit High Input

    The engine power is limited.

    Ignition switch off

    P0168

    Fuel Temperature Too High

    The injection volume and maximum injection volume are reduced.

    Pass condition detected

    P0180

    Fuel Temperature Sensor "A" Circuit

    The fuel temperature is fixed at a specified value.

    Pass condition detected

    P0182

    Fuel Temperature Sensor "A" Circuit Low Input

    The fuel temperature is fixed at a specified value.

    Pass condition detected

    P0183

    Fuel Temperature Sensor "A" Circuit High Input

    [Fuel temperature sensor high input]

    The fuel temperature is fixed at a specified value.

    Pass condition detected

    P0190

    Fuel Rail Pressure Sensor Circuit

    • The main and sub circuits of the fuel pressure sensor are malfunctioning:

      • The engine power is reduced by 90%.*

    • The main or sub circuit of the fuel pressure sensor is malfunctioning:

      • The engine power is limited.

    Ignition switch off

    P0191

    Fuel Rail Pressure Sensor Circuit Range / Performance

    • The main and sub circuits of the fuel pressure sensor are malfunctioning:

      • The engine power is reduced by 90%.*

    • The main or sub circuit of the fuel pressure sensor is malfunctioning:

      • The engine power is limited.

    Ignition switch off

    P0192

    Fuel Rail Pressure Sensor Circuit Low Input

    • The main and sub circuits of the fuel pressure sensor are malfunctioning:

      • The engine power is reduced by 90%.*

    • The main or sub circuit of the fuel pressure sensor is malfunctioning:

      • The engine power is limited.

    Ignition switch off

    P0193

    Fuel Rail Pressure Sensor Circuit High Input

    • The main and sub circuits of the fuel pressure sensor are malfunctioning:

      • The engine power is reduced by 90%.*

    • The main or sub circuit of the fuel pressure sensor is malfunctioning:

      • The engine power is limited.

    Ignition switch off

    P0201

    Injector Circuit / Open - (Cylinder 1)

    The engine power is limited.

    Ignition switch off to ON or STA on

    P0202

    Injector Circuit / Open - (Cylinder 2)

    The engine power is limited.

    Ignition switch off to ON or STA on

    P0203

    Injector Circuit / Open - (Cylinder 3)

    The engine power is limited.

    Ignition switch off to ON or STA on

    P0204

    Injector Circuit / Open - (Cylinder 4)

    The engine power is limited.

    Ignition switch off to ON or STA on

    P0234

    Turbocharger / Supercharger Overboost Condition

    The engine power is limited.

    Pass condition detected

    P0335

    Crankshaft Position Sensor "A" Circuit

    The engine power is reduced by 90%.*

    Pass condition detected

    P0340

    Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)

    The engine power is reduced by 90%.*

    Pass condition detected

    P0400

    Exhaust Gas Recirculation Flow

    The engine power is limited.

    Ignition switch off

    P0405

    Exhaust Gas Recirculation Sensor "A" Circuit Low

    The engine power is limited.

    Ignition switch off

    P0406

    Exhaust Gas Recirculation Sensor "A" Circuit High

    The engine power is limited.

    Ignition switch off

    P042E

    Exhaust Gas Recirculation "A" Control Stuck Open

    The engine power is limited.

    Ignition switch off

    P0488

    Exhaust Gas Recirculation Throttle Position Control Range/Performance

    The engine power is limited.

    Ignition switch off

    P0489

    Exhaust Gas Recirculation Control Circuit Low

    The engine power is limited.

    Ignition switch off

    P0490

    Exhaust Gas Recirculation Control Circuit High

    The engine power is limited.

    Ignition switch off

    P0500

    Vehicle Speed Sensor "A"

    The vehicle speed is fixed at 0 km/h (0 mph).

    Pass condition detected

    P0545

    Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)

    The exhaust gas temperature is fixed at a specified value.

    Ignition switch off

    P0546

    Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 1)

    The exhaust gas temperature is fixed at a specified value.

    Ignition switch off

    P0606

    ECM / PCM Processor

    The engine power is reduced by 90%.*

    Pass condition detected

    P060A

    Internal Control Module Monitoring Processor Performance

    The engine power is reduced by 90%.*

    Pass condition detected

    P0627

    Fuel Pump Control Circuit / Open

    The engine power is limited.

    Pass condition detected

    P062D

    Fuel Injector Driver Circuit Performance Bank 1

    • 1 malfunctioning cylinder detected:

      • The engine power is limited.

    • 2 or more malfunctioning cylinders detected:

      • Stalls the engine.

    Ignition switch off

    P1229

    Fuel Pump System

    The engine power is limited.

    Ignition switch off

    P1251

    Turbocharger / Supercharger Overboost Condition (Too High)

    The engine power is limited.

    Ignition switch off

    P1271

    Fuel Regulator Circuit Malfunction (EDU Drive)

    The engine power is limited.

    Ignition switch off

    P1272

    Fuel Pressure Regulator Malfunction

    The engine power is limited.

    Ignition switch off

    P1626

    Idle Signal Output Value Too Low

    The engine power is limited.

    Ignition switch off

    P1627

    Idle Signal Output Value Too High

    The engine power is limited.

    Ignition switch off

    P200C

    Diesel Particulate Filter Over Temperature Bank 1

    PM forced regeneration is prohibited.

    Ignition switch off

    P200E

    Catalyst System Temperature Too High Bank 1

    PM forced regeneration is prohibited.

    Ignition switch off

    P2032

    Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)

    The exhaust gas temperature is fixed at a specified value.

    Pass condition detected

    P2033

    Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)

    The exhaust gas temperature is fixed at a specified value.

    Pass condition detected

    P20CB

    Exhaust Aftertreatment Fuel Injector "A" Control Circuit Stuck Open

    PM forced regeneration is prohibited.

    Ignition switch off

    P20CD

    Open in Exhaust Aftertreatment Fuel Injector "A" Control Circuit

    • The engine power is reduced by 90%.*

    • PM forced regeneration is prohibited.

    Pass condition detected

    P20CE

    Short in Exhaust Aftertreatment Fuel Injector "A" Control Circuit

    PM forced regeneration is prohibited.

    Ignition switch off

    P20CF

    Injector for Exhaust Fuel Addition

    The engine power is limited.

    Pass condition detected

    P2120

    Throttle/Pedal Position Sensor/Switch "D" Circuit

    The engine power is limited.

    Ignition switch off

    P2121

    Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance

    The engine power is limited.

    Ignition switch off

    P2122

    Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input

    The engine power is limited.

    Ignition switch off

    P2123

    Throttle/Pedal Position Sensor/Switch "D" Circuit High Input

    The engine power is limited.

    Ignition switch off

    P2125

    Throttle/Pedal Position Sensor/Switch "E" Circuit

    The engine power is limited.

    Ignition switch off

    P2127

    Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input

    The engine power is limited.

    Ignition switch off

    P2128

    Throttle/Pedal Position Sensor/Switch "E" Circuit High Input

    The engine power is limited.

    Ignition switch off

    P2138

    Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation

    The engine power is limited.

    Ignition switch off

    P2141

    Diesel Throttle Motor Circuit Low

    The engine power is limited.

    Ignition switch off

    P2142

    Diesel Throttle Motor Circuit High

    The engine power is limited.

    Ignition switch off

    P2226

    Barometric Pressure Circuit

    The atmospheric pressure is fixed at a specified value.

    Pass condition detected

    P2228

    Barometric Pressure Circuit Low Input

    The atmospheric pressure is fixed at a specified value.

    Pass condition detected

    P2229

    Barometric Pressure Circuit High Input

    The atmospheric pressure is fixed at a specified value.

    Pass condition detected

    P2237

    Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1)

    -

    Ignition switch off

    P2238

    Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)

    -

    Ignition switch off

    P2239

    Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)

    -

    Ignition switch off

    P2252

    Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)

    -

    Ignition switch off

    P2253

    Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)

    -

    Ignition switch off

    P244A

    Diesel Particulate Filter Differential Pressure Too Low

    PM forced regeneration is prohibited.

    Ignition switch off

    P244B

    Diesel Particulate Filter Differential Pressure Too High

    The engine power is limited.

    Ignition switch off

    P244C

    Exhaust Temperature Too Low for Particulate Filter Regeneration Bank 1

    PM forced regeneration is prohibited.

    Ignition switch off

    P2453

    Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance

    The diesel particulate filter pressure is fixed at a specified value.

    Ignition switch off

    P2454

    Diesel Particulate Filter Pressure Sensor "A" Circuit Low

    The diesel particulate filter pressure is fixed at a specified value.

    Ignition switch off

    P2455

    Diesel Particulate Filter Pressure Sensor "A" Circuit High

    The diesel particulate filter pressure is fixed at a specified value.

    Ignition switch off

    P2463

    Diesel Particulate Filter Restriction - Soot Accumulation

    The engine power is limited.

    Ignition switch off
    Tip:

    *: Engine power is limited immediately after the DTC is stored.