Table of Contents
1A-40 Engine General Information and Diagnosis:
Fail-Safe Table
When any of the following DTCs is detected, ECM enters fail-safe mode as long as malfunction continues to exist but
that mode is canceled when ECM detects normal condition after that.
DTC No.
P0030
HO2S Heater Control Circuit (Bank-1 Sensor-1)
P0031
HO2S Heater Control Circuit Low (Bank-1 Sensor-1)
P0032
HO2S Heater Control Circuit High (Bank-1 Sensor-1)
P0037
HO2S Heater Control Circuit Low (Bank-1 Sensor-2)
P0038
HO2S Heater Control Circuit High (Bank-1 Sensor-2)
P0102
Mass or Volume Air Flow Circuit Low Input
P0103
Mass or Volume Air Flow Circuit High Input
P0112
Intake Air Temperature Sensor 1 Circuit Low
P0113
Intake Air Temperature Sensor 1 Circuit High
P0117
Engine Coolant Temperature Circuit Low
P0118
Engine Coolant Temperature Circuit High
Throttle/Pedal Position Sensor/Switch "A" (Main)
P0122
Circuit Low
Throttle/Pedal Position Sensor/Switch "A" (Main)
P0123
Circuit High
O2 Sensor (HO2S) Circuit Low Voltage (Bank-1
P0131
Sensor-1)
O2 Sensor (HO2S) Circuit High Voltage (Bank-1
P0132
Sensor-1)
O2 Sensor (HO2S) No Activity Detected (Bank-1
P0134
Sensor-1)
O2 Sensor (HO2S) Circuit Low Voltage (Bank-1
P0137
Sensor-2)
O2 Sensor (HO2S) Circuit High Voltage (Bank-1
P0138
Sensor-2)
O2 Sensor (HO2S) Circuit No Activity Detected
P0140
(Sensor-2, Bank-1)
P0171
Fuel System Too Lean
P0172
Fuel System Too Rich
Throttle/Pedal Position Sensor/Switch "B" Circuit
P0222
Low
Throttle/Pedal Position Sensor/Switch "B" Circuit
P0223
High
Detected item
Fail-safe operation
ECM stops air/fuel ratio feed back (closed loop)
control.
ECM stops HO2S heater control.
• ECM calculates intake air volume according to
engine load and engine speed.
• ECM stops EVAP canister purge valve control.
• ECM controls actuators assuming that intake
air temperature is 20 °C (68 °F).
• ECM stops IAC feedback control.
• ECM stops air/fuel ratio feed back (closed
loop) control.
• ECM controls actuators assuming that engine
coolant temperature is 80 °C (176 °F).
• ECM operates radiator cooling fan. (high
speed)
• ECM operates condenser fan.
• ECM stops air/fuel ratio feed back (closed
loop) control.
• ECM stops IAC feedback control.
• ECM stops A/C control.
• ECM turns off throttle actuator control relay
and throttle valve is fixed at the opening of
about 7° from its completely closed position
(default opening).
• ECM controls fuel cut at specified engine
speed.
• ECM stops air/fuel ratio feed back (closed
loop) control.
• ECM stops A/F sensor heater control.
• ECM stops EVAP canister purge valve control.
• ECM stops air/fuel ratio feed back (closed
loop) control.
ECM stops HO2S feed back control.
ECM stops EVAP canister purge valve control.
• ECM turns off throttle actuator control relay
and throttle valve is fixed at the opening of
about 7° from its completely closed position.
(default opening).
• ECM controls fuel cut at specified engine
speed.
• ECM stops air/fuel ratio feed back (closed
loop) control.
S6RW0C1104007
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