DTC P0546 EXHAUST GAS TEMPERATURE SENSOR CIRCUIT HIGH-BANK 1
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DTC P0546 EXHAUST GAS TEMPERATURE SENSOR
CIRCUIT HIGH-BANK 1
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Detect the open or short circuit of exhaust
temperature sensor.
Judge NG when out of the standard value.
(1)
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Thermistor
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(2)
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Resistance
value (kΩ)
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(3)
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Exhaust
temperature °C (°F)
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Secondary
Parameters
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Enable
Conditions
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None
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Always perform the diagnosis continuously.
Abnormality Judgment
Judge NG when the cumulative time of completing
the malfunction criteria below becomes more than the time needed
for diagnosis (30 seconds).
Judgment
Value
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Malfunction
Criteria
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Threshold
Value
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After
engine starting
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240
seconds or more
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Engine
coolant temperature
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≥ 75°C
(167°F)
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Vehicle
speed
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≥ 65
km/h (40.4 MPH)
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Engine speed
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≥ 1,800
rpm
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Engine
load (gn)
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≥ 0.6
g/rev
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Fuel
cut event
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Not
operating
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After
the recovery from fuel cut event
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30
seconds or more
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Sensor
output voltage
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≥ 4.72
V
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Time Needed for Diagnosis:
30
seconds
Malfunction Indicator
Light Illumination:
Illuminates as soon as the malfunction
occurs.
Normality Judgment
Judge OK and clear the NG when the malfunction
criteria below are completed.
Judgment
Value
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Malfunction
Criteria
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Threshold
Value
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Sensor
output voltage
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< 4.72
V
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•
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When the OK idling cycle was completed 40 times
in a row
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•
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When “Clear Memory” was
performed
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MALFUNCTION
INDICATOR LIGHT CLEAR CONDITION
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•
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When the OK driving cycle was completed 3 times
in a row
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•
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When “Clear Memory” was
performed
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None
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ECM OPERATION
AT DTC SETTING
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Memorize the freeze frame data. (For test
mode $02)
