Engine Control System: Fail-safe
Description
When a DTC is detected, ECM executes a mode (in the Fail-safe mode) applicable to the DTC. The fail-safe mode has the preset traveling control mode (accelerator angle variation and engine output limit), device fix mode and combustion control mode.
| Fail safe mode | Vehicle behavior | Fail safe pattern | |
|---|---|---|---|
| Traveling control mode | Accelerator angle variation control | ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE:
|
A |
| Engine output control | ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction.
NOTE:
|
B | |
ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction.
NOTE:
|
C | ||
| Device fix mode |
|
D | |
| Combustion control mode | Stratified charge combustion control at starting | No stratified charge combustion at starting (cold start). | E |
| Idle speed control | Stops feedback control of idle speed and controls with specified speed. | F | |
| Recovery speed control at decelerating | Stops recovery speed control by the fuel cut at decelerating and controls with specified speed. | ||
| Idle neutral control | Stops idle neutral control. | ||
| Ignition timing correction control | Partially controls ignition timing control. | G | |
| Retardation control | Controls ignition timing delay control in the intermediate water temperature range. | ||
| Electric throttle control cancel mode | ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 Degrees) by the return spring. | H | |
Fail Safe List x: Applicable, -: Not applicable
| DTC No. | Detected items | Vehicle behavior | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pattern | Others | |||||||||||
| A | B | C | D | E | F | G | H | |||||
| C053C | 00 | Vehicle speed sensor | x | - | - | - | x | - | - | - | - | |
| P0010, P2614, P2615 | 00 | Electric VTC controller circuit | - | - | - | x | - | x | - | - | - | |
| - | - | - | x | x | - | - | - | |||||
| P2616, P2617, P2618 | 00 | - | - | - | x | x | - | - | - | - | ||
| P2619 | 00 | - | - | - | x | - | x | - | - | - | ||
| P0011, P0012, P052A, P052B | 00 | Intake VVT | - | - | - | x | - | - | - | - | - | |
| P0014, P0015, P054A, P054B | 00 | Exhaust VVT | - | - | - | x | - | - | - | - | - | |
| P0017 | 00 | Exhaust valve timing control | - | - | - | x | - | - | - | - | - | |
| P0046 | 00 | Wastegate control motor | - | x | - | x | - | - | - | - | - | |
| P0078, P0079, P0080 | 00 | Exhaust intermediate position lock solenoid | - | - | - | x | - | - | - | - | - | |
| P0087, P0088 | 00 | Pressure regulator system | x | - | - | x | x | - | - | - | - | |
| x | - | - | - | x | - | - | - | |||||
| P0101 | 00 | Air flow meter | x | - | - | - | x | - | - | - | - | |
| - | x | - | x | - | - | x | - | |||||
| P0103 | 00 | - | x | - | x | - | - | x | - | |||
| P0107, P0108 | 00 | Barometric pressure sensor | - | x | - | x | - | - | - | - | - | |
| P0117, P0118 | 00 | Engine coolant temperature sensor | - | - | - | - | - | x | - | - | - | |
| P0122, P0123 | 00 | Throttle valve position sensor 2 | - | - | - | x | - | - | - | - | - | |
| P0171, P0172 | 00 | Fuel trim | x | - | - | - | - | x | - | - | - | |
| P0192, P0193 | 00 | Fuel rail pressure sensor | x | - | - | - | x | - | - | - | - | |
| P0201, P0202, P0203, P0261, P0262, P0264, P0265, P0267, P0268 | 00 | Injector (GDI) | x | - | - | x | x | - | - | - | - | |
| P0222, P0223 | 00 | Throttle valve position sensor 1 | - | - | - | x | - | - | - | - | - | |
| P0235, P0237, P0238 | 00 | TC boost sensor | - | x | - | x | - | - | - | - | - | |
| P02CC, P02CD, P02CE, P02CF, P02D0, P02D1 | 00 | Injector | x | - | - | x | x | - | - | - | - | |
| P0300, P0301, P0302, P0303 | 00 | Misfire monitoring | x | - | - | - | - | x | - | - | - | |
| P0335 | 00 | Crankshaft position sensor | - | - | - | x | - | x | - | - | - | |
| - | - | - | x | x | - | - | - | |||||
| - | - | - | x | - | - | - | - | |||||
| P0340 | 00 | Intake camshaft position sensor bank1 | - | - | - | x | - | x | - | - | - | |
| - | - | - | x | x | - | - | - | |||||
| - | - | - | x | - | - | - | - | |||||
| P0365 | 00 | Exhaust camshaft position sensor bank1 | - | - | - | x | - | - | - | - | - | |
| P0401, P0402 | 00 | Exhaust gas recirculation flow | - | - | - | x | - | - | - | - | - | |
| P0404 | 00 | - | - | x | x | - | x | - | - | - | ||
| P0407, P0408, P046E, P0486 | 00 | EGR differential pressure sensor | - | - | - | x | - | - | - | - | - | |
| P040B, P040C, P040D, P1682 | 00 | EGR temperature sensor | - | - | - | x | - | - | - | - | - | |
| P044A, P044E | 00 | Exhaust gas recirculation (valve position) sensor | x | - | - | x | - | - | - | - | - | |
| P044B, P044C, P044D | 00 | Exhaust gas recirculation position sensor | x | - | - | x | - | - | - | - | - | |
| P04FA | 00 | EGR temperature | - | - | - | x | - | - | - | - | - | |
| P0500 | 00 | Vehicle speed sensor | x | - | - | - | - | x | - | - | - | |
| P0604, P0605, P060B, P061B | 00 | ECM | - | - | - | x | - | - | - | x | - | |
| P0606 | 00 | - | - | - | x | - | - | - | x | - | ||
| x | - | - | x | - | - | - | x | |||||
| - | x | - | x | - | - | - | - | |||||
| P060A | 00 | - | x | - | x | - | - | - | x | - | ||
| - | - | - | x | - | - | - | x | |||||
| P060C | 00 | - | - | - | x | - | - | - | - | - | ||
| P062B, P062D | 00 | x | - | - | x | x | - | - | - | - | ||
| P0641 | 00 | Sensor power supply | - | - | - | x | - | x | - | - | - | |
| - | - | - | x | x | - | - | - | |||||
| P10C8, P10C9, P10CA | 00 | Injector (GDI) | x | - | - | x | x | - | - | - | - | |
| P1197 | 00 | Pressure regulator system | - | - | - | x | - | - | - | - | - | |
| P119A, P119B, P119C, P119D, P119E | 00 | Fuel pressure sensor | x | - | - | - | x | - | - | - | - | |
| P2101 | 00 | Throttle Actuator Control Motor | - | - | - | x | - | - | - | x | - | |
| P2119 | 00 | - | x | - | - | - | - | - | - | - | ||
| - | - | - | x | - | - | - | x | |||||
| P210B | 00 | Admission valve motor | - | - | - | x | - | x | - | - | - | |
| P2121, P2126, P2138 | 00 | Accelerator pedal position | - | - | - | x | - | - | - | - | - | |
| P2122, P2123 | 00 | Accelerator pedal position 1 | - | - | - | x | - | - | - | - | - | |
| P2127, P2128 | 00 | Accelerator pedal position 2 | - | - | - | x | - | - | - | - | - | |
| P212B, P212C, P212D | 00 | Admission valve position sensor | - | - | - | x | - | - | - | - | - | |
| P2135 | 00 | Throttle position sensor | - | - | - | x | - | - | - | - | - | |
| P2227 | 00 | Built-in atmosphere pressure sensor | - | x | - | x | - | - | - | - | - | |
| P2562, P2563, P2564, P2565, P2566 | 00 | Wastegate control valve position sensor | - | x | - | x | - | - | - | - | - | |
| P268A | 00 | Fuel injector | x | - | - | x | x | - | - | - | - | |
| P34AC, P34AD, P34AE, P34AF | 00 | Electric VTC actuator | - | - | - | x | x | - | - | - | - | |
| P34C8 | 00 | Electric VTC module | - | - | - | x | x | - | - | - | - | |
| - | - | - | x | - | x | - | - | |||||
| U0122 | 00 | CAN communication line | x | - | - | - | x | - | - | - | - | |
| U012E, U042F | 00 | - | - | - | x | - | x | - | - | - | ||
| - | - | - | x | x | - | - | - | |||||
| U060F | 00 | Sent communication | - | x | - | x | - | - | x | - | - | |
| U0644 | 00 | - | x | - | x | - | - | - | - | |||
| U0652 | 00 | - | - | - | x | - | - | - | - | |||
STOP/START SYSTEM
Description
When a DTC is detected, the stop/start indicator lamp blinks slowly and the start/stop system operation is prohibited. When ECM detects error while operating the stop/start system, ECM restarts the engine. Check each DTC code and perform inspection and repair work in accordance with each trouble diagnosis procedure. Refer to DTC Index .