Suzuki 2006 SX4, Service Manual

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1A-40 Engine General Information and Diagnosis:
Fail-Safe Table
S6RW0C1104007
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. Detected item Fail-safe operation
) P0030 HO2S Heater Control Circuit (Bank-1 Sensor-1)
ECM stops air/fuel ratio feed back (closed loop)
control.
) 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)
ECM stops HO2S heater control.
) P0038 HO2S Heater Control Circuit High (Bank-1 Sensor-2)
) P0102 Mass or Volume Air Flow Circuit Low Input • ECM calculates intake air volume according to
engine load and engine speed.
• ECM stops EVAP canister purge valve control.
) P0103 Mass or Volume Air Flow Circuit High Input
) P0112 Intake Air Temperature Sensor 1 Circuit Low • 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.
) P0113 Intake Air Temperature Sensor 1 Circuit High
) P0117 Engine Coolant Temperature Circuit Low • 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.
) P0118 Engine Coolant Temperature Circuit High
) P0122
Throttle/Pedal Position Sensor/Switch “A” (Main)
Circuit Low • 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.
) P0123
Throttle/Pedal Position Sensor/Switch “A” (Main)
Circuit High
) P0131
O2 Sensor (HO2S) Circuit Low Voltage (Bank-1
Sensor-1)
• ECM stops A/F sensor heater control.
• ECM stops EVAP canister purge valve control.
• ECM stops air/fuel ratio feed back (closed
loop) control.
) P0132
O2 Sensor (HO2S) Circuit High Voltage (Bank-1
Sensor-1)
) P0134
O2 Sensor (HO2S) No Activity Detected (Bank-1
Sensor-1)
) P0137
O2 Sensor (HO2S) Circuit Low Voltage (Bank-1
Sensor-2)
ECM stops HO2S feed back control. ) P0138
O2 Sensor (HO2S) Circuit High Voltage (Bank-1
Sensor-2)
) P0140
O2 Sensor (HO2S) Circuit No Activity Detected
(Sensor-2, Bank-1)
) P0171 Fuel System Too Lean
ECM stops EVAP canister purge valve control.
) P0172 Fuel System Too Rich
) P0222
Throttle/Pedal Position Sensor/Switch “B” Circuit
Low • 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.
) P0223
Throttle/Pedal Position Sensor/Switch “B” Circuit
High