Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Control System
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:
ECM does not control the accelerator pedal releasing speed.
|
A |
|
Engine output control 1 |
ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction. Driving at 70 km/h (44 MPH) or more is possible.
NOTE:
This value is a reference value converted from engine power to vehicle speed. Actual power limitation value differs due to the malfunctioning part and driving condition.
|
B |
|
|
Engine output control 2 |
ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle speed to encourage the driver to repair malfunction. Driving at 40 km/h (25 MPH) or more is possible.
NOTE:
This value is a reference value converted from engine power to vehicle speed. Actual power limitation value differs due to the malfunctioning part and driving condition.
|
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. |
||
Fail Safe List
x: Applicable, --: Not applicable
|
DTC No. |
Detected items |
Vehicle behavior |
||||||||
|
Pattern |
Others |
|||||||||
|
A |
B |
C |
D |
E |
F |
G |
||||
|
P0010 |
Electric intake valve timing module |
-- |
-- |
-- |
x |
x |
-- |
-- |
ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) |
|
|
-- |
-- |
-- |
x |
x |
x |
-- |
||||
|
P0011 P0012 P052A P052B |
Intake valve timing control |
-- |
-- |
-- |
x |
-- |
-- |
-- |
||
|
P0014 P0015 |
Exhaust valve timing control |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
|
|
P0078 |
Exhaust valve timing control solenoid valve |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
|
|
P0087 P0088 P0090 |
FRP control system |
x |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
P0102 P0103 |
Mass air flow sensor circuit |
x |
x |
-- |
x |
x |
x |
x |
-- |
|
|
P0117 P0118 |
Engine coolant temperature sensor circuit |
-- |
-- |
-- |
-- |
x |
x |
-- |
-- |
|
|
P0122 P0123 P0222 P0223 P2135 |
Throttle position sensor |
-- |
-- |
-- |
x |
-- |
-- |
-- |
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 degrees. The ECM regulates the opening speed of the throttle valve to be slower than the normal condition. So, the acceleration will be poor. |
|
|
P0171 P0172 |
Fuel injection system |
x |
-- |
-- |
-- |
x |
x |
-- |
-- |
|
|
P0190 |
FRP sensor |
x |
-- |
-- |
x |
x |
x |
-- |
-- |
|
|
P0197 P0198 |
Engine oil temperature sensor |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
Intake and exhaust valve timing control does not function. |
|
|
P0201 P0202 P0203 P0204 |
Injector |
x |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
P0300 |
Misfire |
x |
-- |
-- |
-- |
x |
x |
-- |
-- |
|
|
P0335 |
Crankshaft position sensor |
-- |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
-- |
-- |
-- |
x |
x |
x |
-- |
||||
|
-- |
-- |
-- |
x |
-- |
-- |
-- |
||||
|
P0340 |
Intake camshaft position sensor |
-- |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
-- |
-- |
-- |
x |
x |
x |
-- |
||||
|
-- |
-- |
-- |
x |
-- |
-- |
-- |
||||
|
P0365 |
Exhaust camshaft position sensor |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
|
|
P0401 |
EGR system |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
|
|
P0404 |
EGR volume control valve |
x |
x |
x |
x |
x |
x |
-- |
-- |
|
|
P044A P044B P044C P044D P044E |
EGR volume control valve position sensor |
x |
-- |
-- |
x |
-- |
-- |
-- |
-- |
|
|
P0500 |
Vehicle speed sensor |
x |
-- |
-- |
-- |
x |
x |
-- |
-- |
|
|
P0524 |
Engine oil pressure |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
|
|
|
P059F |
Active grille shutter |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
|
|
|
P0603 P0607 |
ECM |
x |
x |
-- |
-- |
-- |
-- |
-- |
-- |
|
|
P0604 |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
||
|
P0605 |
-- |
-- |
-- |
x |
-- |
-- |
-- |
(Computing part of ECM does not operate normally.) ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. |
||
|
P0606 |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
||
|
P060A |
x |
x |
-- |
x |
-- |
-- |
-- |
-- |
||
|
-- |
-- |
-- |
x |
-- |
-- |
-- |
||||
|
P060B |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
||
|
P062B |
x |
-- |
-- |
x |
x |
-- |
-- |
NOTE:
Fail-safe mode may not start depending on malfunction type of ECM.
|
||
|
P0641 |
Sensor power supply |
-- |
-- |
-- |
x |
x |
-- |
-- |
ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) |
|
|
-- |
-- |
-- |
x |
x |
x |
-- |
||||
|
P0643 |
-- |
-- |
-- |
x |
-- |
-- |
-- |
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. |
||
|
P10C0 P10C1 P10C2 P10C3 |
Direct fuel injector |
x |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
P10C8 P10C9 P10CA P10CB |
Direct fuel injector |
x |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
P1197 |
Out of gas |
-- |
-- |
-- |
x |
-- |
-- |
-- |
Engine torque is limited. |
|
|
P1217 |
Engine over temperature |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
Engine speed will not rise more than 1, 800 RPM due to the fuel cut. |
|
|
P1805 |
Brake switch |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
ECM controls the electric throttle control actuator by regulating the throttle opening to a small range. Therefore, acceleration will be poor. |
|
|
Vehicle condition |
Driving condition |
|||||||||
|
When engine is idling |
Normal |
|||||||||
|
When accelerating |
Poor acceleration |
|||||||||
|
P2004 |
Intake manifold runner control valve |
x |
x |
-- |
x |
x |
-- |
-- |
-- |
|
|
P2008 |
SWIRL CONT/V (B1) |
-- |
x |
-- |
x |
-- |
-- |
x |
-- |
|
|
P2014 |
Intake manifold runner control valve position sensor |
x |
x |
-- |
x |
x |
-- |
-- |
-- |
|
|
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
|||
|
P2016 P2017 P2018 |
-- |
-- |
-- |
x |
-- |
-- |
-- |
-- |
||
|
P2100 P2103 |
Throttle control motor relay |
-- |
-- |
-- |
x |
-- |
-- |
-- |
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. |
|
|
P2101 |
Electric throttle control function |
-- |
-- |
-- |
x |
-- |
-- |
-- |
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. |
|
|
P2118 |
Throttle control motor |
-- |
-- |
-- |
x |
-- |
-- |
-- |
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. |
|
|
P2119 |
Electric throttle control actuator |
x |
x |
-- |
-- |
-- |
-- |
-- |
-- |
|
|
-- |
-- |
-- |
x |
-- |
-- |
-- |
||||
|
P2122 P2123 P2127 P2128 P2138 |
Accelerator pedal position sensor |
-- |
-- |
-- |
x |
-- |
-- |
-- |
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 degrees. The ECM regulates the opening speed of the throttle valve to be slower than the normal condition. Therefore, the acceleration will be poor. |
|
|
P25DF |
Electric intake valve timing control motor |
-- |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
-- |
-- |
-- |
x |
x |
x |
-- |
||||
|
P2614 P2615 |
Intake camshaft position sensor |
-- |
-- |
-- |
x |
x |
x |
-- |
ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) |
|
|
P2616 |
-- |
-- |
-- |
x |
x |
-- |
-- |
|||
|
P2617 P2618 |
Crankshaft position sensor |
-- |
-- |
-- |
x |
x |
-- |
-- |
ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) |
|
|
P2619 |
-- |
-- |
-- |
x |
x |
x |
-- |
|||
|
P34AC |
Electric intake valve timing control actuator |
-- |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
P34AD |
-- |
-- |
-- |
x |
x |
-- |
-- |
-- |
||
|
P34AE |
Electric intake valve timing control position sensor |
-- |
-- |
-- |
x |
x |
-- |
-- |
-- |
|
|
P34AF |
-- |
-- |
-- |
x |
x |
-- |
-- |
-- |
||
|
P34C4 |
Electric intake valve timing control actuator |
-- |
-- |
-- |
x |
x |
-- |
-- |
ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) |
|
|
P34C8 |
Electric intake valve timing control module |
-- |
-- |
-- |
x |
x |
-- |
-- |
ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) |
|
|
-- |
-- |
-- |
x |
x |
x |
-- |
||||
|
U0101 |
CAN communication line |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
ECM operates active grille shutter to fully-open position. |
|
|
U012E U042F |
CAN communication line |
-- |
-- |
-- |
x |
x |
-- |
-- |
ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle.) |
|
|
-- |
-- |
-- |
x |
x |
x |
-- |
||||
|
U0284 |
CAN communication line |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
ECM operates active grille shutter to fully-open position. |
|
|
U1040 U1044 |
CAN communication line |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
ECM operates active grille shutter to fully-open position. |
|
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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