At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
How can you clear a trouble code from the pcm on a 2003 wrangler? I have code P0161 which is a malfunctioning 02 sensor. Once I get this replaced how to I get the code to clear?
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
That is P0161 (letter "P" and four numbers)
P0161 Oxygen O2 Sensor Circuit Low ( engine cylinder bank 2 sensor #2)
What does that mean?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that is applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model.
It basically means the PCM detected either an excessive current draw, or an open or short in the circuit powering the oxygen sensor's heater circuit. This is in reference to the Heated Oxygen Sensor (2) located rear of catalytic converter (Bank 2).
A code P0161 may mean that one or more of the following has happened:
HO2S heater power circuit open
HO2S heater ground circuit open
HO2S signal tracking (due to oil or moisture in the connector)
Well it really doesn't matter much. I would probably clear the codes and see which ones come back first.
Code 123 is for the throttle position sensor signal being out of range. Could be the sensor or a wiring problem.
Code 155 is for a problem with the heater circuit going to O2 sensor bank 2 sensor 1. Thats on the side with cylinder two if you have a V6 engine. Could be the sensor but its usually the lack of power for the heater.
Code 306 is for loss of power from cylinder 6 which could be mechanical, fuel, or spark related.
The three codes are not connected to each other. And trouble codes are not a statement to replace parts, only what to test.
P0300 is a Misfire code
P3003 are you sure? or is it *P0303* (Cylinder 3 Misfire)?
P0161 the PCM detected either an excessive current draw, or an open or short in the circuit powering the oxygen sensor's heater circuit. This is in reference to the Heated Oxygen Sensor (2) located rear of catalytic converter (Bank 2).
P0161 It basically means the
PCM detected either an excessive current draw, or an open or short in
the circuit powering the oxygen sensor's heater circuit. This is in
reference to the Heated Oxygen Sensor (2) located rear of catalytic
converter (Bank 2).
Symptoms
There will likely be no obvious symptoms other than MIL illumination.
Causes
A code P0161 may mean that one or more of the following has happened:
HO2S heater power circuit open
HO2S heater ground circuit open
HO2S signal tracking (due to oil or moisture in the connector)
HO2S is damaged or has failed PCM has failed
Possible Solutions
Replace HO2 Sensor
Repair open or short in power circuit
Repair open or short in ground circuit
Repair damaged connector due to tracking
As for the 0303 or the 0300 these are probably just side effects of the 0161 fault But the 0303 code means the Cylinder #3 misfired and the 0300 means that you have a bunch of random misfires going on.Make sure you go back over the engine and check all the wiring, you may have disconnected or busted a wire while changing plugs.
Posted by Anonymous on Jan 25, 2013 why post to 2013? ELIAS? why not start your own post. and not mix, engine sensors with HVAC blower heaters. hark. the OP never once stated cars drive line. and matters 100% my guess is a jeep liberty with 3.7L and 2.4L 4 banger. the answers vary by engines. so if 161, is set the heater in bank 2 is bad, rear OXY sensor. O2 Sensor Heater Circuit (Bank 2 Sensor 2) the pcm measures the heater current flow when it reads zero the sensor is bad or the wire is cut.(or rusty)
guess 2, is that late poster thinks P0161 codes are HVAC codes no it is not. P0 codes are USA federal base codes. and are for smog not dash HVAC heaters. nice guess but dead wrong.
in most cases the 02 sensors is just bad. the heater inside it just burns open. all do that , every one... not one lasts the life of engine, ever.
here ill read it to you, the SM. for 3.7L V6 gas engine, USA book and car....
Trouble Code Conditions: ECT Sensor less than 147?F and BTS signal within 27?F of the ECT Sensor (cold engine), engine started, system voltage over 10.5v, engine running at idle speed for over 12 seconds, and the PCM detected the O2 signal was more than 3.0v for 30-90 seconds.
Possible Causes:
ASD relay output (power) circuit to the heater is open
O2 heater ground circuit is open or O2 signal circuit open
O2 heater element has high resistance, is open or shorted
Both codes indicate a a low voltage on the post catalytic converter O2 sensor
Check the wiring to the sensor.
An exhaust leak could also cause these codes to set
Any of the following issues can cause the codes to set
Most likely is a bad connection or faulty O2 sensor
Air leaks in exhaust in front of o2 sensor giving false reading
Engine running excessively lean
O2 sensor connector damaged/corroded
O2 sensor signal circuit is shorted to ground
O2 sensor ground circuit is open
O2 sensor has failed (it may be contaminated with fuel or coolant)
P0141=O2 Sensor Heater Circuit Bank 1 Sensor 2 P0161=O2 Sensor Heater Circuit Bank 2 Sensor 2, the 141 code is a problem with the heated O2 sensor on the drivers side exhaust after the converter, the 161 code is the same except it is on that passenger side exhaust after the converter.
You can either use a auto scan tool to clear the code's, or you can unplug the battery negative cable, if you have a anti-theft system you may have problem's after disconnecting the battery?
×