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DTC No.
Detecting item
HO2S heater control circuit low
*P0037
(Sensor-2)
HO2S heater control circuit high
*P0038
(Sensor-2)
Mass air flow circuit range/
*P0101
performance
*P0102 Mass air flow circuit low input
*P0103 Mass air flow circuit high input
Manifold absolute pressure
*P0106
circuit range/performance
Manifold absolute pressure
*P0107
circuit low input
Manifold absolute pressure
*P0108
circuit high input
Intake air temperature sensor
*P0111
circuit range/performance
Intake air temperature sensor
*P0112
circuit low
Intake air temperature sensor
*P0113
circuit high
Engine coolant temperature
*P0116
circuit range/performance
Engine coolant temperature
*P0117
circuit low
Engine coolant temperature
*P0118
circuit high
Throttle position sensor circuit
*P0121
range/performance
Throttle position sensor circuit
*P0122
low
Throttle position sensor circuit
*P0123
high
O2 sensor (HO2S) circuit low
*P0131
voltage (Sensor-1)
O2 sensor (HO2S) circuit high
*P0132
voltage (Sensor-1)
O2 sensor (HO2S) circuit slow
*P0133
response (Sensor-1)
O2 sensor (HO2S) circuit no
*P0134
activity detected (Sensor-1)
O2 sensor (HO2S) circuit low
*P0137
voltage (Sensor-2)
O2 sensor (HO2S) circuit high
*P0138
voltage (Sensor-2)
O2 sensor (HO2S) circuit no
*P0140
activity detected (Sensor-2)
*P0171 System too lean
Engine General Information and Diagnosis:
Detecting condition
(DTC will set when detecting:)
Heater current is less than specification while heater ON.
Heater current is more than specification while heater ON.
MAF sensor volume is more than specification or less
than specification.
Output voltage of MAF sensor is less than specification.
Output voltage of MAF sensor is more than specification.
Difference between Max. manifold absolute pressure
value and Min. manifold pressure value is less than
specification or difference between barometric pressure
value and manifold pressure value is less than
specification
Output voltage of MAP sensor is less than specification.
Output voltage of MAP sensor is more than specification.
Variation of intake air temperature from engine start is
less than specification.
Circuit voltage of IAT sensor is less than specification.
Circuit voltage of IAT sensor is more than specification.
Engine coolant temperature is less than specified
temperature for specified time from engine start.
Circuit voltage of ECT sensor is less than specification.
Circuit voltage of ECT sensor is more than specification.
Difference between actual throttle opening and opening
calculated by ECM is out of specification.
Output voltage of TP sensor is less than specification.
Output voltage of TP sensor is more than specification.
Max. output voltage of HO2S-1 is less than specification.
Min. output voltage of HO2S-1 is more than specification.
Response time of HO2S-1 output voltage between rich
and lean is longer than specification.
Output voltage of HO2S-1 is more than specification or
less than specification. (or HO2S-1 circuit open or short)
Output voltage of HO2S-2 is less than specification while
engine is idling after driving with high engine load and
Max. output voltage of HO2S-2 minus Min. output voltage
of HO2S-2 is less than specification.
Output voltage of HO2S-2 is more than specification while
engine is idling after driving with high engine load and
Max. output voltage of HO2S-2 minus Min. output voltage
of HO2S-2 is less than specification.
Output voltage of HO2S-2 is more than specification after
warming up engine.
Total fuel trim is larger than specification for specified time
or longer. (Fuel trim toward rich side is large.)
1A-21
MIL
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