Trouble
Code
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Information
Sensor
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Remedy in
F0:DATA LIST
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Cause of Fault
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No.
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Trouble Code
Storage when ...
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Remarks
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38
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O2 SENSOR
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36, 37, 38, 39,
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· Oxygen sensor
voltage less than 90 mV for longer
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CIRCUIT
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40
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than 2.5 s
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VOLTAGE LOW
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(short circuit to ground)
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The trouble code is stored if
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(conditions must be fulfilled consecutively):
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1.) Coolant
temperature higher than 70 °C/158 °F
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2.) Condition
1.) fulfilled for 3 min
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3.) Load
signal greater than 1.5 ms
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4.) After
conditions 1.) to 3.) are fulfilled, waiting
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period of
5 s elapsed
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5.) Trouble
code 73 or 74 not recognized
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Replacement value:
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The control unit takes a replacement value of
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450 mV.
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The oxygen sensor control is switched off.
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