RM3660EC _51 Engine / Hybrid System _080777 NR Series ENGINE CONTROL _0393969 SFI SYSTEM U

NR Series ENGINE CONTROL  SFI SYSTEM  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 or stops fuel injection.

DTC Code Component Fail-Safe Operation Fail-Safe Deactivation Condition
P001100
P001500
VVT system Boost prohibited. Pass condition detected and then ignition switch turned off
P001107 VVT system
·

Idle up (control of combustion worsening).

·

Stopping fuel-cut control.


Pass condition detected
P00CF62
P023511
P023515
No. 1 turbo pressure sensor Boost prohibited. Ignition switch off
P003012
P003013
P101A9E
Air fuel ratio sensor (sensor 1) heater The ECM turns off the air fuel ratio sensor (sensor 1) heater. Ignition switch off
P003312
P003314
Air by-pass valve assembly Output is limited. Pass condition detected
P003373
P023400
P023562
P024313
Turbocharger system Output is limited. Ignition switch off
P003612
P003613
P102A9E
Air fuel ratio sensor (sensor 2) heater The ECM turns off the air fuel ratio sensor (sensor 2) heater. Ignition switch off
P007A11
P007A15
Intake air temperature sensor (No. 2 turbo pressure sensor)
·

The ECM estimates the intake air temperature to be 45°C (113°F).

·

Output is limited.


Pass condition detected
P008700
P008800
Fuel pump assembly (for high pressure side)
·

The ECM performs fuel-cut when the engine speed and engine load are high.

·

Fuel pressure is set to 200 kPa.


Ignition switch off
P010012
P010014
Mass air flow meter sub-assembly
·

The ECM calculates ignition timing according to the engine speed and throttle valve position.

·

Boost prohibited.


Pass condition detected
P011011
P011015
Intake air temperature sensor (mass air flow meter sub-assembly)
·

The ECM estimates the intake air temperature to be 20°C (68°F).

·

Boost prohibited.


Pass condition detected and then ignition switch turned off
P011511
P011515
Engine coolant temperature sensor The ECM estimates the engine coolant temperature to be 80°C (176°F). Pass condition detected
P012011
P012015
P01201C
P022011
P022015
P060444
P060604
P060629
P060647
P060787
P060A47
P060B49
P060D49
P060E49
P061E49
P065714
P06579E
P160700
P210014
P210015
P211172
P211173
P211900
P211904
P211977
P21352B
Electronic throttle control system The ECM cuts off throttle actuator current and the throttle valve is returned to a 8° throttle position by the return spring.
The ECM then adjusts the engine output by controlling fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal angle to allow the vehicle to be driven at a low speed*1.
Pass condition detected and then ignition switch turned off
P019011
P019015
P123513
Fuel pressure sensor
·

The ECM performs fuel-cut when the engine speed and engine load are high.

·

Fuel pressure is set to 200 kPa.


Ignition switch off
P020113
P020213
P020313
P020413
P062D13
Injector driver (ECM) The ECM performs fuel-cut when the engine speed is 2000 rpm or higher. Pass condition detected and then ignition switch turned off
P026A00 Intercooler system Output is limited. Pass condition detected
P030000
P030027
P030085
P030100
P030200
P030300
P030400
*2
·

Fuel injector assembly

·

Electronic throttle control system


When a catalyst-damaging misfire occurs (MIL blinking), the following fail-safe operation is performed for catalyst overheat malfunction prevention.
1.

Under a low load and at a low engine speed:

- Fuel cut is performed on the malfunctioning cylinder.

2.

Under a high load and at a high engine speed:

- Throttle valve opening angle control is performed.

- Fuel cut is performed on all cylinders or the malfunctioning cylinder.


Pass condition detected and then ignition switch turned off
P032511
P032515
Knock control sensor The ECM sets the ignition timing to maximum retard. Ignition switch off
P035113
P035213
P035313
P035413
Ignition coil assembly The ECM cuts the fuel injection. Pass condition detected
P05042B Stop light switch assembly The accelerator pedal opening angle is fixed when there is an accelerator pedal malfunction or history of a malfunction. Pass condition detected and then ignition switch turned off
P052400 Oil pressure sender gauge assembly Engine speed is limited due to fuel cut and throttle restriction (4000 rpm or less). Pass condition detected
P056014 ECM +B circuit Generator command is maintained. Pass condition detected and then ignition switch turned off
P137800 Pre-ignition Output is limited in low-speed boost region Clear DTC after recovering to normal condition
P15EA12 Oil pressure switching valve assembly Output is limited. Pass condition detected
P212012
P212014
P21201C
P21201F
P212099
P212512
P212514
P21251F
P21382B
Accelerator pedal position sensor The accelerator pedal position sensor has 2 sensor circuits: Main and Sub.
If either circuit malfunctions, the ECM limits the engine output.
If both circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.
Pass condition detected and then ignition switch turned off
P222611
P222615
Atmospheric pressure sensor (Built into ECM) Boost prohibited. Ignition switch off
P223711
P223712
P223713
P223716
P223717
P22371B
P225111
P225112
Air fuel ratio sensor (sensor 1) Air fuel ratio sensor (sensor 1) air fuel ratio feedback control is stopped Pass condition detected and then ignition switch turned off
P22AB11
P22AB12
P22AB13
P22AB16
P22AB17
P22B211
P22B212
Air fuel ratio sensor (sensor 2)
·

Control based on air fuel ratio sensor (sensor 2) air fuel ratio feedback is stopped.

·

The ECM turns off the air fuel ratio sensor (sensor 2) heater.


Pass condition detected and then ignition switch turned off

HINT:

*1: The vehicle can be driven slowly when the accelerator pedal is depressed firmly and slowly. If the accelerator pedal is depressed quickly, the vehicle may speed up and slow down erratically.

*2: Misfire-related fail-safe operations occur when catalyst overheat malfunctions occur.