P0141
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Expert Gearhead
Joined: May 2006
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From: Sheboygan Wisconsin
P0141
P0141
Description
O2 Sensor Heater Circuit Malfunction
When ignition is turned on, battery voltage is supplied to
HO2S 2 heater to provide for faster sensor warm-up, thus allowing
sensor to become active in a shorter period of time. PCM reads amount
of time necessary for sensor to become active after start-up.
Symptoms
You will likely notice poor fuel economy and/or a Check Engine Light.
Causes
A code P0141 may mean that one or more of the following has happened
Possible Solutions
Description
O2 Sensor Heater Circuit Malfunction
When ignition is turned on, battery voltage is supplied to
HO2S 2 heater to provide for faster sensor warm-up, thus allowing
sensor to become active in a shorter period of time. PCM reads amount
of time necessary for sensor to become active after start-up.
You will likely notice poor fuel economy and/or a Check Engine Light.
Causes
A code P0141 may mean that one or more of the following has happened
- open or short to ground in the wiring harness
- O2 heater circuit wiring high resistance
- O2 heater element resistance is high
- Internal short or open in the heater element
Possible Solutions
- Replace oxygen sensor
- Repair short or open or high resistance in wiring harness or harness connectors
